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PR21

Project title: TEORIA DI CAMPO DELLE INTERAZIONI FONDAMENTALI
Convener: Paolo Nason

Sites: Bologna Cosenza Ferrara Firenze Lecce Milano Bicocca Parma Pavia
International collaborations:

Participants

Bologna

Name	Position	INFN Position	Time percentage
Michele Caffo	Primo Ricercatore	Tempo Indeterminato	100
Stefano Laporta	Assegnista	Scientifica Borse Private	100
Ettore Remiddi	Prof. Ordinario	Incarico di Ricerca	100
Sandro Turrini	Ricercatore	Scientifica Universita'	100
Gian Paolo Vacca	Ricercatore	Tempo Indeterminato	50

Cosenza

Name	Position	INFN Position	Time percentage
Francesco Caporale	Assegnista	Scientifica Dottorandi, Borse non INFN e Assegni	100
Roberto Fiore	Prof. Ordinario	Incarico di Ricerca	70
Alessandro Papa	Prof. Associato	Incarico di Ricerca	50

Ferrara

Name	Position	INFN Position	Time percentage	Comments
Mauro Moretti	Ricercatore	Incarico di Ricerca	100
Michele Treccani	Assegnista	Scientifica Dottorandi, Borse non INFN e Assegni	100

Firenze

Name	Position	INFN Position	Time percentage
Marcello Ciafaloni	Prof. Ordinario	Incarico di Ricerca	70
Dimitri Colferai	Ricercatore	Scientifica Universita'	100
Stefano Catani	Dirigente di Ricerca	Tempo Indeterminato	100
Giancarlo Ferrera	Borsista U.E.	Scientifica Dottorandi, Borse non INFN e Assegni	100
Massimiliano Grazzini	Ricercatore	Tempo Indeterminato	100

Lecce

Name	Position	INFN Position	Time percentage	Comments
Matteo Beccaria	Prof. Associato	Incarico di Ricerca	50
Gian Fabrizio De Angelis	Prof. Ordinario	Incarico di Ricerca	100

Milano Bicocca

Name	Position	INFN Position	Time percentage
Andrea Banfi	Assegnista	Scientifica Dottorandi, Borse non INFN e Assegni	100
Simone Alioli	Dottorando	Scientifica Dottorandi, Borse non INFN e Assegni	100
Carlo Oleari	Ricercatore	Incarico di Ricerca	100
Giuseppe Marchesini	Prof. Ordinario	Incarico di Ricerca	100
Paolo Nason	Dirigente di Ricerca	Tempo Indeterminato	100
Emanuele Re	Dottorando	Scientifica Dottorandi, Borse non INFN e Assegni	100

Parma

Name	Position	INFN Position	Time percentage
Leonardo Di Giustino	Borsista Post doct.	Scientifica Dottorandi, Borse non INFN e Assegni	100
Alessia Gruzza	Dottorando	Scientifica Dottorandi, Borse non INFN e Assegni	100
Luca Trentadue	Prof. Ordinario	Incarico di Ricerca	70

Pavia

Name	Position	INFN Position	Time percentage
Giovanni Balossini	Dottorando	Scientifica Dottorandi, Borse non INFN e Assegni	100
Guido Montagna	Ricercatore	Incarico di Ricerca	100
Oreste Nicrosini	Primo Ricercatore	Tempo Indeterminato	100
Fulvio Piccinini	Ricercatore	Tempo Indeterminato	60

Scientific project

The activity of PR21 is focussed on the study of the Standard model
phenomenology. New theoretical ideas and studies that are relevant for
phenomenological application, as well as implementation of theoretical
ideas and models in Monte Carlo programs, and comparison of
data with calculations and models, are performed in the group. At
present, theoretical activity in preparation of the LHC physics is the
prominent activity of the group. In particular, three members of the
ALPGEN collaboration (in Pavia and Ferrara) belong to PR21. The Pavia
group is also involved in calculation of EW corrections to collider
processes, implemented in the HORACE Monte Carlo. In Milan,
theoretical ideas on the improvement of Shower Monte Carlo programs,
with the inclusion of NLO corrections, and with the refinement of
the generation of soft radiation, are considered.
Furthermore, the Florence, Pavia and Milano group are considering
the impact of Electro Weak Sudakov logarithms in LHC physics,
The Bologna, Florence and Milano group are involved in NLO and multi-loop
calculation of processes of current interest. Topics like heavy flavour
decays, fracture functions, small-x, physics, and lately also Ads/CFT results
relevant to QCD applications are also studied. Below, the plans for future
research in each of the subunits of PR21 are listed.

Bologna
1) Multi-loop calculations:
Analytic or precise numerical calculation of multi-loop contributions
to various processes in QED, QCD and the EW model, by using in
particular the differential equation approach for the evaluation
of the Master Integrals of the problem.

2) Small-x physics:
In the last years an intense research activity has been devoted to study
integrability aspects in Yang Mills and Super Yang Mills gauge theories.
This subject was pionereed by Lev Lipatov about fifteen years ago with
the discovery of an integrable structure (in the planar limit) in the
Green's functions which are ingredients necessary to describe the
energy dependence of QCD scattering amplitudes in the Regge limit.
The are no informations about this property beyond the leading
logarithmic (LL) approximation.
The full NLL n reggeized gluon evolution kernels (BKP) are not available
yet (apart from the 2 reggeized gluon case, the pomeron). Part of the
activity will be devoted to the computation of such kernels and to study
if they have an integrable structure in the large number of color limit.

Cosenza

1. NLO BFKL kernel
Investigation of the BFKL dynamics in the
next-to-leading order (NLO).
This year we obtained the dipole form of both quark and gluon
parts of the BFKL kernel in the NLO in the configurational
representation. This representation is the most suitable for
investigation of the remarkable properties of the BFKL dynamics.
Moreover, the configurational representation of the NLO BFKL
kernel should be very helpful for calculation of radiative
corrections to nonlinear generalizations of the BFKL equation,
such as Balitsky-Kovchegov (BK) equation, which are very popular
now. The striking property of the results obtained is the
simplicity of the dipole form of the kernel. Moreover, it was
shown that after some transformation the dipole form agrees with
the quark contribution to the BK kernel obtained recently by
Balitsky. The gluon contribution to the BK kernel is not obtained
yet. Our results can be used for finding it. In this respect, one
has to bear in mind the ambiguity of the NLO kernel. We plan to
investigate this ambiguity and to find its relation with the
colour dipole impact factors. We plan also to define the radiative
corrections to nonlinear generalizations of the BFKL equation.

2. gamma* gamma* to two light vector mesons amplitude in the
next-to-leading approximation.
The impact factor for the virtual photon (gamma*) to light vector
meson (V=rho, omega, phi, ...) can be used to build, together with the BFKL
Green's function, the amplitude for the gamma* gamma* -> V V process, completely
within perturbative QCD in the NLO. This amplitude can be studied in two different
kinematical regimes. The first one is the regime of equal photon virtualities,
or "pure" BFKL regime, where the numerical determination of the (imaginary
part of the) amplitude can be studied using optimization methods of the
perturbative series or with methods based on the collinear improvement of the
BFKL kernel. The other regime is the regime of strongly ordered photon
virtualities, or "DGLAP" regime, where collinear factorization holds.
So far only the "pure" BFKl regiem has been considered. We plan to extend the
analysis to the case of strongly ordered photon virtualities. For this purpose
we will use a BFKL kernel improved in order to take into account renormalization
group (or collinear) effects at subleading order which can play a relevant
numerical role.

Phenomenology:
1. Project: QCD Cherenkov radiation in nuclear medium: non-Abelian effects,
absorption and RHIC data

Basing on the analogy with QED one can expect the existence of the QCD
Cherenkov radiation induced by the high-energy projectile passing
through the nuclear medium. For example, in collision of relativistic heavy ions
at RHIC. It should be emphasized that the absorption and color screening effects
make the propagation of the color charge completely different from the well
known QED pattern. The goal of our project is the quantitative analysis of the
QCD Cherenkov radiation within the light-cone path integral technique.
The emphasis will be put on the multiple scattering effect
which forms specific azimuthal distribution of final hadronic states
observed at RHIC.

2. Project: Generalized Parton Distribution functions and dual hadron model
2a. The model for DVCS amplitude developed in 2006 and published in Phys. Letters B
in 2007, will be further elaborated to: include a) effects of QCD evolution;
b) spin effects. With these extensions the model will be applied to
photoproduction of vector mesons without and with spin effects taken into account
(with HERMES data in mind).

2b. In 2006 a dual model for J/Psi diffractive production was developed and
compared with the HERA data in the whole energy region, including that of the
threshold region. This result received attention by a group working at the
Fermilab Tevatron. Now we intend to use that dual model to study J/Psi production
in pp collisions at Fermilab. The experimentalists (A. Szczurek et al.) are
interested in this application.

Ferrara
Concerning collider physics studies we plan to continue the development of
the event generator ALPGEN, based on the ALPHA algorithm introduced by
F. Caravaglios and M. Moretti, which allows the authomatic calculation
of tree level scattering amplitudes.

We plan to upgrade ALPGEN to allow the description of the final states:
-) associated production of t tbar pairs, photons and light jets
-) associated production of four-fermions (leptons) and light jets
(background to Higgs production and decay to four fermions)

We plan to study in detail the systematics associated to the prescription
used to "merge" the matrix element calculation and the parton shower
evolution. We shall look to the channels:
-) higgs + jets
-) many jets
studying the internal consistency of the prescription (dependence from
the matching parameters), comparing with other existing codes and comparing
with experimental data (in collaboration with experimental colleagues)

Finally we plan to study the possibility to authomatize the calculation
of Next to Leading Order contributions using the ALPHA code for the
calculation of tree level amplitudes and suitably chosen dispersion
relations.

Firenze
- "One-loop multileg amplitudes and cross sections".
We shall develop new methods to compute one-loop scattering amplitudes
in gauge theories for arbitrary multileg processes.
The methods, which are based on the combined use of numerical and
analytical techniques, exploit relations between loop integrals
and phase-space integrals. These relations can then be used
to directly compute physical cross sections in numerical form at the
next-to-leading order in perturbation theory.
- "QCD resummations at NNLL accuracy".
We plan to systematically study soft-gluon contributions to various
kinds of QCD resummations (threshold, transverse-momentum and event-shape
resummations) up to the next-to-next-to-leading logarithmic (NNLL) level.
The theoretical results will be applied to phenomenological studies
at high-energy colliders: production of vector bosons, jets, heavy quarks
and supersymmetric particles.
- "QCD at NNLO".
The new formulation of the subtraction method that we have proposed
this year will be applied to specific phenomenological studies
at Tevatron and LHC energies.
We plan to compute QCD radiative corrections at
next-to-next-to-leading order (NNLO) to various hard-scattering processes
in hadron collisions: Drell-Yan production of lepton pairs,
production of vector bosons (W,Z) and pairs of vector bosons.
- "QCD at small x".
We plan to complete the matrix formulation
(in the flavour space of quarks and gluons)
of the parton evolution that embodies both collinear factorization and
high-energy factorization. We shall compute the corresponding anomalous
dimensions and splitting functions.
- "Electroweak theory at high energy".
We shall study the electroweak double-logarithmic contributions
at small values of Bjorken x, by using the singular DGLAP equations
(that have been proposed by our group) and
recent formulations of the BFKL equation.
We shall analyse double-logarithmic terms in form factors of processes
that violate conservation of the chiral charge.

Lecce

Recent years have seen a wealth of new results improving our
perturbative and non-perturbative understanding of nonabelian gauge
field theories in four dimensions. Developments in string theory led
to the AdS/CFT conjecture by Maldacena. In this correspondence the N
=4 extended super- symmetric gauge field theory plays a distinguished
role. It is a conformal field theory (CFT) in four dimensions. Its
perhaps most important basic feature is its spectrum, i.e. the
complete set of anomalous dimensions of local composite operators. In
the planar limit, these can be computed at the multi-loop level by
applying integrability Bethe Ansatz techinques to a supersymmetric
PSU(2,2|4) integrable spin chain Hamiltonian.

Remarkably, the integrability of N=4 SYM survives to some extent in
theories with less supersymmetry, and in QCD itself. For many
quantities of key interest in perturbative QCD, the N =4 result is a
structurally intact part of the complete answer. An intriguing example
are the anomalous dimensions of twist-2 operators relevant to deep
inelastic scattering. The three-loop QCD result was recently
calculated after a many-year effort. The so-called "most complicated
terms" of the answer were then shown to precisely agree with the N =4
result as well as the Bethe ansatz.

In the near past, the Lecce group has worked intensely on these
subjects. Some techical aspects of the AdS side concerning especially
finite size effects, were investigated. On the CFT side, closer to
the QCD context, twist-3 operators in a particular non-compact sl(2)
sector of N=4 SYM, were considered. Several intriguing properties
quite familiar in the QCD context like reciprocity or maximal
trascendentality rules, were discovered. These investigation will be
extended to additional channels, i.e. sectors of composite operators,
in particular gluonic ones.

Milano-Bicocca

1) The activity of NLO+Shower method (called POWHEG method) will continue.
Work in progress, like the heavy flavour production implementation,
and a theoretical paper spelling out all the details of the method
for general processes, will be completed. New applications will
be considered: the Vector + jet production process, used at LHC
for jet calibration, and the jet pair production process, of its
own importance for QCD and new physics studies. The group is also
planning to study new jet definitions suitable for LHC physics.
The POWHEG method will also be extended to a method for simply correcting
large angle emissions in shower processes, as an alternative to the
CKKW method.
2) The previously found reciprocity relation between space- and time-like hard processes
will be extended to account for the running coupling
3) Study of how to improve the Monte Carlo branching: i) include
non-planar contribution; ii) include resummation of soft
contributions at large angles
4) EW processes: resummation at single-log EW soft and collinear
enhanced terms
5) The phenomenology of shape variables of jets in multi-jet events
will be studied
6) Effects of soft radiation in QCD in jet cross sections, in particular
in the azimuthal correlations and in the distribution of transverse
energy inside and outside the jet.

Parma

1) Extension of the approach used for b-> s gamma, to
include mass effects in b->c nu l decays as well with the accompaining phenomenological analysis.
2) We have systematically computed and discussed meson and muon polarized radiative decays.
Doubly differential distributions in terms of momenta and helicities of the final lepton and
photon have been explicitly computed. The particular configurations made by right-handed
leptons with accompanying photons have been investigated and interpreted as a manifestation
of the axial anomaly. The photon polarization asymmetry has been evaluated.
The approach will be extended to include constant terms in meson and muon decays as well.
3) Radiative Corrections to e+e- processes and QED - vacuum polarization
Is in progress the project to measure QED running coupling at e+e- colliders at low energies.

Pavia

1. Physics at hadron colliders
1.1 Calculation of NLO electroweak corrections to the
neutral-current Drell-Yan process and matching with QED
Parton Shower. Comparisons with independent calculations
and implementation in the Monte Carlo HORACE.
1.2 Study of the combination of electroweak and QCD
corrections to single W/Z boson production in
hadronic collisions. Analysis of the implications
for the physics program at the Tevatron and LHC
(precision measurements of the W-boson parameters,
luminosity monitoring and PDF constraints,
background to new physics searches).
1.3 Analysis of the theoretical systematics in the
scaled observables method to the W mass measurement
at the LHC.
1.4 Calculation of NLO electroweak corrections to weak
boson production in association with jets in hadronic
collisions.

1.5 Study and simulation of Higgs boson and top production
processes at the LHC, as well as of final states playing an
important role as backgrounds to new physics searches.

2. Physics at electron-positron accelerators
2.1 Improvement of the theoretical accuracy of the
generator BabaYaga for the production processes of
photon and muon pairs, both of interest for luminosity
monitoring at flavour factories. Matching of NLO
corrections with QED Parton Shower for the latter
processes.
2.2 Implementation in BabaYaga of higher-order effects
presently neglected in the cross section calculation
of the Bhabha process, such as light pairs corrections
and two-loop contributions available in the literature.

Activity

Bologna

The Bologna group has achieved several new results in multi-loop calculations:
a) Two-loop QCD corrections to the heavy quark form-factors.
b) Two-loop QCD corrections to the decay of scalar and pseudoscalar Higgs
bosons into fermions.
c) Two-Parton Contribution in NNLO QCD to the Heavy-Quark Forward-Backward
Asymmetry.
d) Two-loop QED numerical evaluation of the differential cross-section for
Bhabha scattering.
e) Precise numerical evaluation and analytic treatment of the two loop
sunrise graph.
f) Precise numerical evaluation of the epsilon-expanded contributions to
the electron anomaly from 3-loop and 4-loop diagrams by differece
equation method.

Cosenza

Results of the Cosenza group
BFKL physics:
1. The multi--Regge form of QCD amplitudes with gluon exchanges is proved in the
next-to-leading approximation. The proof is based on the bootstrap relations,
which are required for the compatibility of this form with the s-channel
unitarity.
2. The BFKL kernel in the next-to-leading order has been found in the coordinate
representation by direct transfer of the contribution from the momentum
representation where it was calculated before. The results obtained are used
for the examination of conformal properties of the NLO BFKL kernel and of the
relation between the BFKL and color dipole approaches.
3. The forward electroproduction of two light vector mesons is the first example
of a collision process between strongly interacting colorless particles for
which the amplitude can be written completely within perturbative QCD in the
Regge limit with next-to-leading accuracy. Last year we gave a numerical
determination of the amplitude in the case of equal photon virtualities by
using a definite representation for the amplitude and a definite optimization
method for the perturbative series. This year we have estimated the systematic
uncertainty of our previous determination, by considering a different
representation of the amplitude and different optimization methods of the
perturbative series.
PHENOMENOLOGY:
1. A factorized Regge-pole model for deeply virtual Compton scattering has been
suggested. The use of an effective logarithmic Regge-Pomeron trajectory
provides for the description of both ``soft'' (small $|t|$) and ``hard''
(large $|t|$) dynamics. The model contains explicitly the photoproduction
and the DIS limits and fits the existing HERA data on deeply virtual Compton
scattering.
2. Being reformulated in the color dipole basis of small-x QCD Adler's theorem
establishes a connection between perturbative and non-perturbative descriptions
of DIS and quantifies the effect of non-perturbative dynamics on
would-be-perturbative observables. In particular, it provides a quantitative
measure of the non-perturbative influence on the longitudinal structure
function in charged current DIS and imposes stringent constraints on
non-perturbative parameters of color dipole models. A recent analysis calls for
new experimental tests of Adler's theorem in diffractive neutrino scattering.

Ferrara

The Ferrara group has continued the development of the ALPGEN event generator, devoted
to the study of processes with many hard partons in the final state.
The code was upgraded to allow for the description of
-) Single top events (associated production of a top quark, b quark,
light jets and eventually additional electroweak gauge bosons)
-) photons and light jets
-) Higgs and light jets (higgs from gluon fusion in the infinite top mass
limit)
-) W* and Z* plus photons plus light jets

Several phenomenological studied were performed with ALPGEN/
The possibility to detect the Higgs decay into b bbar pair
in the channel Higgs plus photon plus two forward jets was studied.

ALPGEN was used to study in detail the contribution of the gluon fusion
channel to the signal: higgs plus two backward/forward jets with a large
rapidity gap, particularly relevant to study higgs boson couplings.

A detailed study of the systematic associated to the "matching"
of the matrix elemente description and the parton shower has been carried out.
The first of such study for t-tbar plus light jets production has provided some
confidence on the robustness of the procedure as well as emphasized some possible
problems with MC dead cones in NLO MC merged with PS.

The ALPGEN code is included in the official software of D0 and CDF.
The interface of ALPGEN and HERWIG is included in HERWIG official release.

In the Florence group,
- A new formulation of the subtraction method was proposed,
to evaluate QCD radiative corrections to arbitrary physical observables
in hard-scattering processes that involve the
production of high-mass systems in hadron collisions.
This new formulation of the subtraction method is based on the
universal structure of the infrared singularities
encountered in the evaluation of the transverse-momentum distribution
of this class of processes.
The method was applied to Higgs boson production at the LHC,
including the decay of the Higgs boson in two photons, and obtained
predictions up to the next-to-next-to-leading order in QCD perturbation
theory.
- The group activity on small-$x$ parton densities was continued.
A method to relate the MSbar factorization scheme (used
in studies at fixed perturbative order) and the Kt factorization scheme
(used in studies that perform all-order resummation) was developed.
The corresponding transformation matrix has been derived at the next-to-leading
level and extended to all-orders by comparing both the parton
densities and the evolution kernels in the two factorization schemes.

Milano Bicocca

In Milano-Bicocca, the following results were achieved.
1) Fragmentation functions for heavy flavours
Prompted by new available data on charm fragmentation functions by CLEO
and BELLE, the evolution of the framentation function
from CLEO/BELLE to LEP energy, correctly accounting for the crossing
of the bottom threshold, was studied. It was found that the data shows evidence
of large power suppressed effects. Having only two points in Q^2, it is impossible
to determine the power law of these effects from present data. With a 1/Q^2
the coefficient of the power suppressed contribution is of the order of two
GeV (quite large). If instead a 1/Q law is assumed, the coefficient has a
reasonable size. Various theoretical models disfavour a 1/Q power effect
in fragmentation functions, although no solid theorem prohibits their existance.

2) NLO calculations + Shower Monte Carlo;
A method proposed by a member of the group in 2004, for merging NLO QCD results
and shower Monte Carlo without overcounting has been implemented for the
process of Z pair production in hadronic collisions, thus proving the viability
of the method in a process of intermediate complexity involving initial state
radiation. The method has been also applied to heavy flavour production.
The heavy flavour result is not yet published, but was presented in several
seminars in 2006 and 2007.

3) Several results relevant to the study of vector boson fusion and vector boson
scattering at the LHC have been studied by a member of the Milano group.
Higgs production via vector boson fusion is an important channel for the study
of the Higgs boson properties at the LHC, and vector boson scattering at
high energy is a fundamental probe of the nature of the symmetry breaking mechanism
in the standard model. The following results were obtained
a) NLO corrections to vector boson fusion inton Higgs
b) NLO corrections to single vector boson production + 2 jets
c) NLO corrections to double vector boson production in vector boson fusion + 2 jets
in the kinematic configuration of vector boson fusion (i.e. large rapidity
difference of the two jets, large invariant mass of the two jet system).

3) Effect of soft emission in QCD were studied. A relation between
soft emission in jet physics and soft exchanges in high energy physics
was found.

4) A new Reciprocity relation between space- and time-like hard processes was found.

5) Resummation of soft effects in shape variables, and out-of-jet energy flow was
studied.

6) An infrared safe definition of jet flavour was introduced.

Parma

In Parma, studies on Fracture functions and on Heavy quark decays were carrid out.

1) Fracture Functions Evolution equations: derivation, within the
framework of perturbative Quantum Chromodynamics, of the
transverse momentum dependent distributions describing both current
and target fragmentation in semi-inclusive Deep Inelastic
Scattering. The
corresponding cross-sections describing final state hadrons on the
whole phase space, was presented, to leading logarithmic accuracy,

2) A new jet-like observable has been introduced to describe initial
state hadronic activity in hadron initiated reactions. The goals of
the:

a) Extension to include multiple hadron distributions.
b)Fracture Functions formalism extension to hadron-hadron collisions
have been accomplished:

3) The research concerning QCD radiative corrections in b quark decays
and effective theories has been accomplished by deriving an explicit
analytic expression for the inclusion of finite mass insertions in the
b-> s gamma and semileptonic decays and their resummation up to NNLO
accuracy:

Meson and muon polarized
radiative decays have been systematically computed and discussed.
Doubly differential distributions in terms of
momenta and helicities of the final lepton and photon have been
explicitly computed. The particular configurations made by
right-handed leptons with accompanying photons have been investigated
and interpreted as a manifestation of the axial anomaly. The photon
polarization asymmetry has been evaluated.

Pavia

The activity of the Pavia group is articulated as follows:

1. Precision calculation and Monte Carlo simulation of
Drell-Yan-like processes at hadron colliders.

Calculation of multiple photon corrections to single W/Z
boson production processes in hadronic collisions and
development of the event generator HORACE, as required
by the program of electroweak physics at the Tevatron
and LHC. Calculation and implementation in HORACE of
exact NLO electroweak corrections to single W boson production.
Tuned comparisons with independent calculations by
competing theoretical groups and contribution to
Les Houches and TeV4LHC workshops.
Support to CDF/D0 collaborations for the interface of
HORACE to physics simulation software. The HORACE code is
also part of the official software of ATLAS experiment.
Preliminary study of the interplay between QCD and
electroweak corrections to the charged-current Drell-Yan
process, in order to provide theoretical predictions
comparable with the existing and future experimental
data at the Tevatron and LHC.

2. Higgs physics at the LHC

2.1 Calculation of complete O(alpha) and higher-order QED
corrections to Higgs decay into four leptons. Study of the
impact of the above effects on precise Higgs mass measurements
at the LHC.

2.2 Study of Higgs self-couplings of two Higgs doublet
model in b bar + forward jets production at the LHC.
Study of double Higgs production in 4b + X final states
as relevant signatures to set bounds to the Two Higgs Doublet
Model parameters at the LHC and SLHC (luminosity upgrade of
the LHC).

2.3 Monte Carlo study of Higgs + 2 jet events as direct probes
of the Higgs couplings at the CERN LHC, including vector-boson
and gluon fusion Higgs production processes.

2.4 Analysis of Higgs boson production in association with
a photon via vector-boson fusion, as a possible channel to enhance
the signal/background ratio in the Higgs-boson studies at the LHC.

3. Multi-particle production and high-pt physics
at the Tevatron and LHC

3.1 Upgrade of the ALPGEN event generator to version 2.0.
The main improvements consist in the implementation of new
processes (Higgs production through gluon fusion and single
top production) and the implementation of a procedure to
merge different multiplicity samples suitably interfaced
to parton shower event generators.
Collaboration with ATLAS and CMS collaborations for simulation of
various LHC processes through ALPGEN, in particular
p p --> t tbar gamma gamma, single-top production and other
reactions relevant as signals of/backgrounds to Higgs production.

3.2 Study of the matching of multijet matrix elements and
QCD shower evolution for top pair production at hadron
colliders and comparison with independent generators.

4. High-precision calculation of the Bhabha process in QED
and luminosity measurement at flavour factories

Substantial upgrade of the event generator BabaYaga for
high-precision simulation (with per mille accuracy) of the
Bhabha process at Phi, Charm and B factories and
relative luminosity measurements, as required by the
precision measurement of the hadronic cross section at
low energies. Matching of NLO corrections with QED Parton
Shower for precision calculation of the Bhabha cross section
at flavour factories and comparison with available
two-loop calculations. Support to KLOE, CLEO and
BABAR collaborations.

5. Spectroscopy of exotic hadrons

5.1 Spectroscopy of the new charmonium states
interpreted as diquark-antidiquark states. Study of
the spectrum and predictions able to distinguish
the tetraquark model from molecular or hybrid models.

5.2 Proposal to use the e+ e- --> e+ e- pi0 pi0 process
to extract a sigma(500) signal using KLOE data at DAFNE.

Publications

BOLOGNA:
W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, T. Leineweber, P. Mastrolia and E. Remiddi,
``Two-parton contribution to the heavy-quark forward-backward asymmetry in
NNLO QCD,''
Nucl.\ Phys.\ B {\bf 750} (2006) 83
[arXiv:hep-ph/0604031].

W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, T. Leineweber, P. Mastrolia and E. Remiddi,
``QCD corrections to static heavy quark form factors,''
Phys.\ Rev.\ Lett.\ {\bf 95} (2005) 261802
[arXiv:hep-ph/0509341].

W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, P. Mastrolia and E. Remiddi,
``Decays of scalar and pseudoscalar Higgs bosons into fermions: Two-loop QCD
corrections to the Higgs-quark-antiquark amplitude,''
Phys.\ Rev.\ D {\bf 72} (2005) 096002
[arXiv:hep-ph/0508254].

S. Pozzorini and E. Remiddi,
``Precise numerical evaluation of the two loop sunrise graph master
integrals in the equal mass case,''
Comput.\ Phys.\ Commun.\ {\bf 175} (2006) 381
[arXiv:hep-ph/0505041].

W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, T. Leineweber and E. Remiddi,
``Two-loop QCD corrections to the heavy quark form factors: Anomaly
contributions,''
Nucl.\ Phys.\ B {\bf 723} (2005) 91
[arXiv:hep-ph/0504190].

W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, T. Leineweber, P. Mastrolia and E. Remiddi,
``Two-loop QCD corrections to the heavy quark form factors: Axial vector
contributions,''
Nucl.\ Phys.\ B {\bf 712} (2005) 229
[arXiv:hep-ph/0412259].

R. Bonciani, A. Ferroglia, P. Mastrolia, E. Remiddi and J. J. van der Bij,
``Two-loop N(F) = 1 QED Bhabha scattering: Soft emission and numerical
evaluation of the differential cross-section,''
Nucl.\ Phys.\ B {\bf 716} (2005) 280
[arXiv:hep-ph/0411321].

S. Laporta and E. Remiddi,
``Analytic treatment of the two loop equal mass sunrise graph,''
Nucl.\ Phys.\ B {\bf 704} (2005) 349
[arXiv:hep-ph/0406160].

W. Bernreuther, R. Bonciani, T. Gehrmann, R. Heinesch, T. Leineweber, P. Mastrolia and E. Remiddi,
``Two-loop QCD corrections to the heavy quark form factors: The vector
contributions,''
Nucl.\ Phys.\ B {\bf 706} (2005) 245
[arXiv:hep-ph/0406046].

M. A. Braun and G. P. Vacca,
``On the 'toy model' in the Reggeon field theory,''
Eur.\ Phys.\ J.\ C {\bf 50}, 857 (2007)
[arXiv:hep-ph/0612162].

J. Bartels, L. N. Lipatov, M. Salvadore and G. P. Vacca,
``Deformed spectral representation of the BFKL kernel and the bootstrap for
gluon reggeization,''
Nucl.\ Phys.\ B {\bf 726} (2005) 53
[arXiv:hep-ph/0506235].

J. Bartels, M. Salvadore and G. P. Vacca,
``AGK cutting rules and multiple scattering in hadronic collisions,''
Eur.\ Phys.\ J.\ C {\bf 42} (2005) 53
[arXiv:hep-ph/0503049].

J. Bartels, M. Braun and G. P. Vacca,
``Pomeron vertices in perturbative QCD in diffractive scattering,''
Eur.\ Phys.\ J.\ C {\bf 40} (2005) 419
[arXiv:hep-ph/0412218].

J. Bartels, L. N. Lipatov and G. P. Vacca,
``Interactions of Reggeized gluons in the Moebius representation,''
Nucl.\ Phys.\ B {\bf 706} (2005) 391
[arXiv:hep-ph/0404110].

COSENZA:
L.L. Jenkovszky, A.V. Kotikov,
F. Paccanoni, A. Papa, E. Predazzi,.
Analytical evolution of nucleon structure functions with power
corrections at twist-4 and predictions for ultra-high energy
neutrino-nucleon cross section. By R. Fiore
Phys.Rev.D71:033002,2005 e-Print Archive: hep-ph/0412003

V.S. Fadin, R. Fiore, "Non-forward BFKL Pomeron at next-to-leading
order", Phys. Lett. B610 (2005) 61, Erratum-ibid. B621 (2005) 61.

V.S. Fadin, R. Fiore, "Non-forward NLO BFKL kernel", Phys. Rev. D72
(2005) 014018.

V.S. Fadin, R. Fiore, M.G. Kozlov, A.V. Reznichenko,
"Proof of the multi-Regge form of QCD amplitudes with gluon exchanges
in the NLA",
Phys. Lett. B639 (2006) 74.

V.S. Fadin, R. Fiore, A. Papa,
"On the coordinate representation of NLO BFKL",
Nucl. Phys. B769 (2007) 108.

V.S. Fadin, R. Fiore, A. Papa,
"The Dipole form of the quark part of the BFKL kernel",
Phys. Lett. B647 (2007) 179.

D.Yu. Ivanov and A. Papa,
"Electroproduction of two light vector mesons in the next-to-leading BFKL:
study of systematic effects",
Eur. Phys. J. C 49 (2007) 947-955.

M. Capua, S. Fazio, R. Fiore, L. Jenkovszky, F. Paccanoni,
"A Deeply Virtual Compton Scattering Amplitude",
Phys. Lett. B645 (2007) 161.

FERRARA
M. L. Mangano, M. Moretti, F. Piccinini and M. Treccani,
``Matching matrix elements and shower evolution for top-quark production in
hadronic collisions,''
JHEP {\bf 0701} (2007) 013
[arXiv:hep-ph/0611129].

V. Del Duca {\it et al.},
``Monte Carlo studies of the jet activity in Higgs + 2jet events,''
JHEP {\bf 0610} (2006) 016
[arXiv:hep-ph/0608158].

M. Moretti, S. Moretti, F. Piccinini, R. Pittau and A. D. Polosa,
``Higgs boson self-couplings at the LHC as a probe of extended Higgs
sectors,''
JHEP {\bf 0502} (2005) 024
[arXiv:hep-ph/0410334].

C. M. Carloni Calame, G. Montagna, O. Nicrosini and M. Treccani,
``Multiple photon corrections to the neutral-current Drell-Yan process,''
JHEP {\bf 0505} (2005) 019
[arXiv:hep-ph/0502218].

Michelangelo L. Mangano, Mauro Moretti, Fulvio Piccinini, Roberto Pittau, Antonio D. Polosa.
ALPGEN, a generator for hard multiparton processes in hadronic collisions, JHEP 0307:001,2003.

FIRENZE
S. Catani and M. Grazzini,
``Next-to-Next-to-Leading-Order Subtraction Formalism in Hadron Collisions
and its Application to Higgs-Boson Production at the Large Hadron
Collider'',
Phys.\ Rev.\ Lett.\ {\bf 98} (2007) 222002
[arXiv:hep-ph/0703012].

U. Aglietti, G. Corcella and G. Ferrera,
``Modelling non-perturbative corrections to bottom-quark fragmentation,''
Nucl.\ Phys.\ B {\bf 775} (2007) 162
[arXiv:hep-ph/0610035].

U. Aglietti, G. Ferrera and G. Ricciardi,
``Semi-inclusive B decays and a model for soft-gluon effects,''
Nucl.\ Phys.\ B {\bf 768} (2007) 85
[arXiv:hep-ph/0608047].

G. Bozzi, S. Catani, D. de Florian and M. Grazzini,
``Transverse-momentum resummation and the spectrum of the Higgs boson at
the LHC,''
Nucl.\ Phys.\ B {\bf 737} (2006) 73
[arXiv:hep-ph/0508068].

M. Grazzini,
``Soft-gluon effects in W W production at hadron colliders,''
JHEP {\bf 0601} (2006) 095
[arXiv:hep-ph/0510337].

M. Ciafaloni, D. Colferai, G. P. Salam and A. M. Stasto,
``Minimal subtraction vs. physical factorisation schemes in small-x QCD,''
Phys.\ Lett.\ B {\bf 635} (2006) 320
[arXiv:hep-ph/0601200].

U. Aglietti, G. Ricciardi and G. Ferrera,
``Threshold resummed spectra in B --> X/u l nu decays in NLO. III,''
Phys.\ Rev.\ D {\bf 74} (2006) 034006
[arXiv:hep-ph/0509271].

U. Aglietti, G. Ricciardi and G. Ferrera,
``Threshold resummed spectra in B --> X/u l nu decays in NLO. II,''
Phys.\ Rev.\ D {\bf 74} (2006) 034005
[arXiv:hep-ph/0509095].

U. Aglietti, G. Ricciardi and G. Ferrera,
``Threshold resummed spectra in B --> X/u l nu decays in NLO. I,''
Phys.\ Rev.\ D {\bf 74} (2006) 034004
[arXiv:hep-ph/0507285].

S. Frixione and M. Grazzini,
``Subtraction at NNLO,''
JHEP {\bf 0506} (2005) 010
[arXiv:hep-ph/0411399].

D. de Florian and M. Grazzini,
``The back-to-back region in e+ e- energy energy correlation,''
Nucl.\ Phys.\ B {\bf 704} (2005) 387
[arXiv:hep-ph/0407241].

M. Ciafaloni and D. Colferai,
``Dimensional regularisation and factorisation schemes in the BFKL equation
at subleading level,''
JHEP {\bf 0509} (2005) 069
[arXiv:hep-ph/0507106].

R. Enberg, K. Golec-Biernat and S. Munier,
``The high energy asymptotics of scattering processes in QCD,''
Phys.\ Rev.\ D {\bf 72} (2005) 074021
[arXiv:hep-ph/0505101].

E. Iancu, A. H. Mueller and S. Munier,
``Universal behavior of QCD amplitudes at high energy from general tools
of statistical physics,''
Phys.\ Lett.\ B {\bf 606} (2005) 342
[arXiv:hep-ph/0410018].

MI-BICOCCA

G. Bozzi, B. Jager, C. Oleari and D. Zeppenfeld,
``Next-to-leading order QCD corrections to W+Z and W-Z production via
vector-boson fusion,''
Phys.\ Rev.\ D {\bf 75} (2007) 073004
[arXiv:hep-ph/0701105].

Yu. L. Dokshitzer and G. Marchesini,
``N = 4 SUSY Yang-Mills: Three loops made simple(r),''
Phys.\ Lett.\ B {\bf 646} (2007) 189
[arXiv:hep-th/0612248].

A. Banfi, G. Corcella and M. Dasgupta,
``Angular ordering and parton showers for non-global QCD observables,''
JHEP {\bf 0703} (2007) 050
[arXiv:hep-ph/0612282].

Y. Delenda, R. Appleby, M. Dasgupta and A. Banfi,
``On QCD resummation with k(t) clustering,''
JHEP {\bf 0612} (2006) 044
[arXiv:hep-ph/0610242].

R. Vogt, M. Cacciari and P. Nason,
``QCD predictions of heavy quark production at RHIC,''
Nucl.\ Phys.\ A {\bf 774} (2006) 661.

B. Jager, D. Zeppenfeld and C. Oleari,
``QCD corrections to vector boson pair production via weak boson fusion,''
Acta Phys.\ Polon.\ B {\bf 38} (2007) 797
[arXiv:hep-ph/0608272].

W. M. Yao {\it et al.} [Particle Data Group],
``Review of particle physics,''
J.\ Phys.\ G {\bf 33} (2006) 1.

P. Nason and G. Ridolfi,
``A positive-weight next-to-leading-order Monte Carlo for Z pair
hadroproduction,''
JHEP {\bf 0608} (2006) 077
[arXiv:hep-ph/0606275].

B. Jager, C. Oleari and D. Zeppenfeld,
``Next-to-leading order QCD corrections to Z boson pair production via
vector-boson fusion,''
Phys.\ Rev.\ D {\bf 73} (2006) 113006
[arXiv:hep-ph/0604200].

B. Jager, C. Oleari and D. Zeppenfeld,
``Next-to-leading order QCD corrections to W+ W- production via vector-boson
fusion,''
JHEP {\bf 0607} (2006) 015
[arXiv:hep-ph/0603177].

A. Banfi, G. P. Salam and G. Zanderighi,
``Infrared safe definition of jet flavour,''
Eur.\ Phys.\ J.\ C {\bf 47} (2006) 113
[arXiv:hep-ph/0601139].

Yu. L. Dokshitzer, G. Marchesini and G. P. Salam,
``Revisiting parton evolution and the large-x limit,''
Phys.\ Lett.\ B {\bf 634} (2006) 504
[arXiv:hep-ph/0511302].

M. Cacciari, P. Nason and C. Oleari,
``A study of heavy flavoured meson fragmentation functions in e+ e-
annihilation,''
JHEP {\bf 0604} (2006) 006
[arXiv:hep-ph/0510032].

Yu. L. Dokshitzer and G. Marchesini,
``Soft gluons at large angles in hadron collisions,''
JHEP {\bf 0601} (2006) 007
[arXiv:hep-ph/0509078].

A. Banfi and M. Dasgupta,
``Problems in resumming interjet energy flows with k(t) clustering,''
Phys.\ Lett.\ B {\bf 628} (2005) 49
[arXiv:hep-ph/0508159].

Yu. L. Dokshitzer and G. Marchesini,
``Hadron collisions and the fifth form factor,''
Phys.\ Lett.\ B {\bf 631} (2005) 118
[arXiv:hep-ph/0508130].

M. Cacciari, P. Nason and C. Oleari,
``Crossing heavy-flavour thresholds in fragmentation functions,''
JHEP {\bf 0510} (2005) 034
[arXiv:hep-ph/0504192].

M. Cacciari, P. Nason and R. Vogt,
``QCD predictions for charm and bottom production at RHIC,''
Phys.\ Rev.\ Lett.\ {\bf 95} (2005) 122001
[arXiv:hep-ph/0502203].

A. Banfi and E. Laenen,
``Joint resummation for heavy quark production,''
Phys.\ Rev.\ D {\bf 71} (2005) 034003
[arXiv:hep-ph/0411241].

P. Nason,
``A new method for combining NLO QCD with shower Monte Carlo algorithms,''
JHEP {\bf 0411} (2004) 040
[arXiv:hep-ph/0409146].

A. Banfi, G. P. Salam and G. Zanderighi,
``Principles of general final-state resummation and automated
implementation,''
JHEP {\bf 0503} (2005) 073
[arXiv:hep-ph/0407286].

PAVIA
M.L. Mangano, M. Moretti, F. Piccinini, M. Treccani
Matching matrix elements and shower evolution for top-quark
production in hadronic collisions
JHEP 01 (2007) 013

L. Maiani, F. Piccinini, A.D. Polosa, V. Riquer
Positive Parity Scalar Mesons in the 1GeV-2GeV Mass Range
Eur. Phys. J. C50 (2007) 609

G. Balossini, C.M. Carloni Calame, G. Montagna, O. Nicrosini,
F. Piccinini
Matching perturbative and parton shower corrections to Bhabha
process at flavour factories
Nucl. Phys. B758 (2006) 227

C.M. Carloni Calame, G. Montagna, O. Nicrosini, A. Vicini
Precision electroweak calculation of the charged current
Drell-Yan process
JHEP 12 (2006) 016

V. Del Duca, G. Klamke, D. Zeppenfeld, M.L. Mangano, M. Moretti,
F. Piccinini, R. Pittau, A.D. Polosa
Monte Carlo studies of the jet activity in Higgs + 2 jet events
JHEP 0610 (2006) 016

F. Nguyen, F. Piccinini, A.D. Polosa
e+ e- ---> e+ e- pi0 pi0 at DAPHNE
Eur. Phys. J. C47 (2006) 65

C.M. Carloni Calame, G. Montagna, O. Nicrosini, M. Treccani
Multiple photon corrections to the neutral-current
Drell-Yan process
JHEP 0505 (2005) 019

I. Bigi, L. Maiani, F. Piccinini, A.D. Polosa, V. Riquer
Four-quark mesons in non-leptonic B-decays: could
they resolve some old puzzles?
Phys. Rev. D72 (2005) 114016

L. Maiani, F. Piccinini, A.D. Polosa, V. Riquer
Four-quark interpretation of Y(4260)
Phys. Rev. D72 (2005) 031502

L. Maiani, F. Piccinini, A.D. Polosa, V. Riquer
Diquark-antidiquarks with hidden or open charm
and the nature of X(3872).
Phys. Rev. D71 (2005) 014028

M. Moretti, S. Moretti, F. Piccinini, R. Pittau, A.D. Polosa
Higgs boson self-couplings at the LHC
as a probe of extended higgs sectors
JHEP 0502 (2005) 024

PARMA

F. Ceccopieri,L. Trentadue
Transverse Momentum in Semi-inclusive Deep Inelastic Scattering
Phys.Lett. B636 (2006) 310-316.

F. Ceccopieri,L. Trentadue
A New Fracture Function Approach to QCD Initial State Radiation
May 2007. 10pp. e-Print: arXiv:0705.2326[hep-ph]. Submitted to Phys.Lett.B

U.Aglietti, L.Di Giustino, G.Ferrera and L.Trentadue,
Resummed mass distribution for jets initiated by massive quarks
arXiv:hep-ph/0612073. ( Phys. Lett. B in press ).

Talks

BOLOGNA

G.P. Vacca, "Representations of the LL BFKL Kernel and the Bootstrap"
XI International Conference on Elastic and Diffractive Scattering
Chateu de Blois, Blois, Francia, 15-20 may 2005
Proceedings: pag. 391
GPXB 232-2006/CXB/7-52/ThG(3-4-2006)

G.P. Vacca, "Small x evolution:BFKL versus dipole picture"
Diffracton 2004: International Workshop on Diffraction in High-Energy
Physics,
Cala Gonone, Sardinia, Italy, 18-23 Sep 2004.*
*Nucl.Phys.Proc.Suppl.146:113-116,2005

COSENZA
A. Papa,
"NLO BFKL at work: the electroproduction of two light vector mesons",
talk given at CERN, November 30, 2006.

FERRARA

M. Moretti, THEORETICAL ASPECTS OF HIGGS PHYSICS AT THE LHC.
EPSHEP 2003, Aachen 17-23 July 2003

M. Moretti, ALPGEN
XII Interantional Workshop on Deep Inelastic Scattering,
DIS2004, Strbske Pleso, Slovacchia, 14-18 Aprile 2004

M. Moretti, Status of ALPGEN
WIN'05, 6-11 June, 2005, Delphi Greece

M. Moretti, ALPGEN
LOOPFESTV, Slac, July 19-21, 2006

M. Moretti, Matching ME/MC
Workshop sui Monte Carlo la fisica e le simulazioni a LHC, Frascati, May 22-24, 2006

M. Moretti, Studies of gg->Hjj background to WBF higgs production
Workshop sui Monte Carlo la fisica e le simulazioni a LHC, Frascati, May 22-24, 2006

M. Treccani, t tbar (+jets) con ALPGEN
Workshop sui Monte Carlo la fisica e le simulazioni a LHC, Frascati, May 22-24, 2006

FIRENZE

- S.~Catani,
"The transverse momentum of the Higgs boson at the LHC",
KEK symposium "Towards precision QCD physics",
KEK, Tsukuba, Japan, March 10th, 2007
(see:
http://suchix.kek.jp/kekqcd/ )

- S.~Catani,
"Transverse-momentum resummation",
Kyoto workshop "Achievements and prospects of perturbative QCD"
- dedicated to the memory of Jiro Kodaira -,
Kyoto University, Kyoto, Japan, March 12th, 2007

- D.~Colferai,
"A Matrix Formulation for Small-x Singlet Evolution"
HERA-LHC meeting, DESY, Hamburg, Germany, 12-16 March 2007
(see:
http://www.desy.de/~heralhc/ )

D.~Colferai,
"Una Formulazione Matriciale per Densita' Partoniche a Piccolo x",
XXIX Congresso di Fisica Teorica, Cortona, Italy, May 2007
(see:
http://cortona.mi.infn.it/cortona2007/ )

S.~Catani,
"Combinare calcoli esatti al tree level con gli Shower Monte Carlo",
Presented at the "Workshop sui Monte Carlo, la fisica e le simulazioni
di LHC",
Laboratori Nazionali di Frascati, Italy, 27-28 Feb 2006
(see:
http://www.le.infn.it/mcws/program/2-2006/program1.htm )

S.~Catani,
"A new method to compute multileg one-loop cross sections",
Presented at the Workshop "HP^2 : High Precision for Hard Processes
at the LHC", ETH, Zurich, Switzerland, 6-9 Sept 2006
(see:
http://www-theorie.physik.unizh.ch/conferences/hp2/index.html )

M.~Grazzini
"QCD resummations vs parton shower simulations",
Presented at the "Workshop sui Monte Carlo, la fisica e le simulazioni
di LHC",
Laboratori Nazionali di Frascati, Italy, 22-23 May 2006
(see: http://www.le.infn.it/mcws/)

M.~Grazzini
"Soft gluon effects in WW production at hadron colliders",
Presented at the Workshop "HP2 : High Precision for Hard Processes
at the LHC",
ETH, Zurich, Switzerland, 6-9 Sept 2006
(see: http://www-theorie.physik.unizh.ch/conferences/hp2/index.html )

MILANO-BICOCCA

P. Nason, Misure di QCD alla partenza di LHC, V Riunione Nazionale di CMS-Italia, Milano-Bicocca, 01/2006
P. Nason, Shower Monte Carlo: cosa sono e cosa fanno,
talk al Workshop sui Monte Carlo la fisica e le simulazioni a LHC, Frascati, 27/02/2006
P. Nason,
``Embedding Nlo Calculations In Shower Event Generators With Positive
Weights,'', 14th International Workshop on Deep Inelastic Scattering (DIS 2006),
Tsukuba, Japan, 20-24 Apr 2006}
P. Nason, NLO + Shower: a new approach
Workshop HP2, Zuerich, Switzerland, September 6-9 2006
P. Nason, NLO + parton shower: a new approach, CERN phen. seminar, 6-10-2006
P. Nason, POWHEG, un nuovo approccio ai Parton Shower
talk al Workshop sui Monte Carlo la fisica e le simulazioni a LHC, Frascati, 24/10/2006
P. Nason, Heavy Flavour Production with POWHEG, LHCb collaboration meeting, Bologna February 13-16, 2007
P. Nason, Shower Monte Carlo e la fisica dei collisori di alte energie, Uni. Padova, 19/04/2007

C. Oleari, ``NLO and NNLO: status and progresses'', at Workshop sui Monte Carlo, la
fisica e le simulazioni a LHC, Frascati, Italy, 27 February 2006.

C. Oleari, ``Heavy-Quark Fragmentation Functions in $\epem$ Collisions'', at DIS 2006,
Tsukuba, Japan, 21 April 2006.

C. Oleari ``QCD corrections to Higgs and vector-boson production'', at DIS 2006,
Tsukuba, Japan, 21 April 2006.

C. Oleari ``QCD corrections to Higgs and production of di-bosons'', at Workshop on
Collider Physics, ANL, Argonne, IL, USA, 11 May 2006.

C. Oleari ``QCD corrections to Higgs and di-boson production'', at Pheno 2006
Symposium, Madison, WI, USA, 16 May 2006.

C. Oleari ``QCD corrections to Higgs and di-boson production'', Universita' degli
Studi, Bologna, Italy, 8 March 2006.

C. Oleari ``QCD corrections to Higgs production: signal and backgrounds''
Universite' Catholique de Louvain, 6 April 2006.

C. Oleari ``Heavy-Quark Production'', lecture given at the CTEQ School 2006, Rhodes,
Greece, 2 July 2006.

C. Oleari ``QCD corrections to vector-boson fusion processes'', at Workshop: high
precision for hard processes at the LHC, Zurich, Switzerland, 6 September
2006.

C. Oleari ``QCD for New Physics Discovery'', at the meeting ``Fisica in
`vivo' '',Milano, Italy, 13--14 March 2007.

C. Oleari ``QCD corrections to Higgs and vector (di-)boson production'', Universita'
degli Studi, Firenze, Italy, 3 April 2007.

C. Oleari ``Parton Shower + NLO: a POsitive-Weight Hardest Emission Generator'', at
Pheno 2007 Symposium, Madison, WI, USA, 7 May 2007.

C. Oleari ``Parton Shower + NLO: a POsitive-Weight Hardest Emission Generator'', at
Physics at TeV Colliders, Les Houches, France, 23 June 2007.

Giuseppe Marchesini, QCD REVIEW. Summary talk. Presented at 33rd
International Conference on High Energy Physics (ICHEP 06), Moscow,
Russia, 26 Jul - 2 Aug 2006. [HEP-PH 0611115]

Giuseppe Marchesini, RELATING SMALL FEYNMAN AND BJOKEN X.Talk given
at Workshop on Future Prospects in QCD at High Energies,
Brookhaven, Upton, New York, 17-22 Jul 2006. [HEP-PH 0605262]

Andrea Banfi, "Why multi-jet studies?"
FRIF workshop on first principles non-perturbative QCD of
hadron jets, LPTHE, Paris, France, 12-14 Jan 2006.

Andrea Banfi, "Resummations in QCD: Recent developments"
IFAE 2006, Pavia, Italy, 19-21 Apr 2006.

Andrea Banfi, "IR safe determination of jet flavour at parton level"
HERA-LHC Workshop, CERN, 6-9 June 2006

Andrea Banfi, "Stati finali in QCD: risommazione e simulazioni Monte Carlo"
MCWS Workshop, Frascati, October 23-25, 2006

Andrea Banfi, " Three-jet event-shapes: first NLO+NLL+1/Q results"
DIS 2007 Workshop, April 16-20, 2007, Munich, Germany

PAVIA

Speaker: F. Piccinini
Title: t tbar H with ALPGEN v2.0
Conference: b-tau mini-workshop
Place and date: CERN, Geneva, 9-10 February 2006
Proceedings: unpublished

Speaker: C.M. Carloni Calame
Title: Matrix elements and Parton Shower in the event generator BABAYAGA
Conference: e+ e- Collisions from Phi to Psi
Place and date: Novosibirsk, 27 February - 2 March 2006
Proceedings: G. Balossini, C.M. Carloni Calame, G. Montagna,
O. Nicrosini, F. Piccinini, Nucl. Phys. Proc. Suppl. 162 (2006) 59

Speaker: F. Piccinini
Title: Phenomenologie & generateurs
Conference: Atlas Workshop
Place and date: Autrans, France, 27-29 March 2006
Proceedings: unpublished

Speaker: G. Montagna
Title: Precision calculations and Monte Carlo generators
for Drell-Yan processes
Conference: Workshop sui Monte Carlo, la fisica e le simulazioni a LHC
Place and date: Laboratori Nazionali di Frascati, 22-24 May 2006
Proceedings: in preparation

Speaker: F. Piccinini
Title: Theoretical Status of Drell-Yan Physics
Conference: Intersections of particle and nuclear physics: 9th Conference Cipanp
Place and date: Rio Grande, Puerto Rico, 30 May - 3 June 2006
Proceedings: C.M. Carloni Calame, G. Montagna, O. Nicrosini,
F. Piccinini, A. Vicini,
AIP Conf. Proc. 870 (2006) 436

Speaker: F. Piccinini
Title: Monte Carlo tools for LHC
Conference: Italo-Hellenic School of Physics
Place and date: Martignano, 12-18 June 2006
Proceedings: unpublished

Speaker: F. Piccinini
Title: Matching Parton Shower and matrix elements in QED
Conference: 33rd International Conference on High Energy Physics (ICHEP 06)
Place and date: Moscow, 26 July - 2 August 2006
Proceedings: G. Balossini, C.M. Carloni Calame, G. Montagna,
O. Nicrosini, F. Piccinini, hep-ph/0609313, in press

Speaker: F. Piccinini
Title: Matrix element tools for backgrounds to H^+- searches
Conference: Charged 2006, Prospects for charged Higgs Discovery at Colliders
Place and date: Uppsala, 13-16 September 2006
Proceedings: unpublished

Speaker: F. Piccinini
Titolo: Status Report of ALPGEN
Conference: Top Workshop/IN2P3: from D0 to Atlas
Place and date: Grenoble, 9-10 October 2006
Proceedings: unpublished

Speaker: C.M. Carloni Calame
Titolo: BABAYAGA and its theoretical accuracy
Conference: Working Group on radiative corrections and generators for
low-energy hadronic cross section and luminosity
Place and date: Laboratori Nazionali di Frascati, 16-17 October 2006
Proceedings: in preparation

Speaker: G. Montagna
Title: Status of Monte Carlo generators for luminosity measurement
Conference: Working Group on radiative corrections and generators for
low-energy hadronic cross section and luminosity
Place and date: Laboratori Nazionali di Frascati, 16-17 October 2006
Proceedings: in preparation

Speaker: C.M. Carloni Calame
Titolo: Study of combined QCD and EW corrections to the charged
current Drell-Yan process
Conference: Workshop sui Monte Carlo, la fisica e le simulazioni a LHC
Place and date: Laboratori Nazionali di Frascati, 23-25 October 2006
Proceedings: in preparation

Speaker: F. Piccinini
Title: Precision predictions and tools for weak boson
production at the LHC
Conference: Cracow Epiphany Conference on Precision Physics and
Monte Carlos for LHC
Place and date: Cracow, Poland, 4-6 January 2007
Proceedings: G. Balossini, C.M. Carloni Calame, G. Montagna, M. Moretti,
O. Nicrosini, F. Piccinini, M. Treccani, A. Vicini,
to appear in Acta Physica Polonica B

Speaker: F. Piccinini
Title: Recent progress in theoretical calculations and
Monte Carlo generators for LHC
Conference: XXI Rencontres de Physique de la Vallee d'Aoste
Place and date: La Thuile, 4-10 March 2007
Proceedings: in preparation

Speaker: F. Piccinini
Title: Combining QCD and electroweak corrections to Drell-Yan
at LHC
Conference: HERA and the LHC
Place and date: DESY, Hamburg, 12-16 March 2007
Proceedings: in preparation

Speaker: F. Piccinini
Title: Rescuing H -> b \bar b in vector-boson fusion by
requiring an extra central photon
Conference: ATLAS Higgs working group
Place and date: CERN, Geneva, 11 April 2007
Proceedings: unpublished

Speaker: G. Montagna
Title: Combining electroweak and QCD corrections to weak boson
production at hadron colliders
Conference: LoopFest VI: Radiative corrections for the LHC and ILC
Place and date: Fermilab, Batavia, 16-18 April 2007
Proceedings: unpublished

PARMA

DAPHNE-2 Program meeting. March, 10th, 2006
L. Trentadue. Measuring alpha_QED at e+e- Colliders

QCD'N-06
F. Ceccopieri, L. Trentadue, Transverse Momentum distributions in semi-inclusive Deep Inelastic Scattering
( http://www.lnf.infn.it/conference/qcdn06/)

L. Trentadue
The quark form factor
in QCD: A Personal Recollection
KEK symposium "Toward precision QCD
Physics"
dedicated to the memory of Jiro Kodaira
KEK Tsukuba Japan March 10
2007
http://suchix.kek.jp/kekqcd/

L.Trentadue
The Quark Form Factor
Kyoto
workshop "Achievements and prospects of perturbative QCD"
Dedicated to the
memory of Jiro Kodaira ,
Kyoto University, Kyoto, Japan, March 12th, 2007

L.Trentadue
QCD Initial State Radiation: A New Approach
Internationa Workshop
on Quantum Chromodynamics
QCD at Work, Martina Franca (Ta) 16-21 June 2007

Theses

BOLOGNA

G.P. Vacca 2006: Supervisor of Michele Salvadore for the PhD thesis:
"Aspects of multipartonic interactions in small-x QCD",
University of Bologna (discussione finale 31 may 2006)

MILANO-Bicocca

Emanuele Re (Rel. Nason, Corr. Marchesini; tesi specialistica)
'Studio sulla produzione di leptoni a grande momento trasverso a LHC'
29-settembre-2006

Simone Alioli (Rel. Nason, Corr. Marchesini; tesi specialistica)
'Correzioni all'ordine sottodominante in generatori Montecarlo di sciami
adronici', 29-settembre-2006

PAVIA

Author: Giovanni Balossini
Title: Calcolo di precisione e simulazione Monte Carlo del processo Bhabha
[Precision calculation and Monte Carlo simulation of the Bhabha process]
Advisor: Guido Montagna
University: Pavia
Date: 31 March 2006
Degree: specialist in Physics

Author: Laura Foini
Title: La fase di Berry [The Berry phase]
Advisor: Guido Montagna
University: Pavia
Date: 29 September 2006
Degree: triennal in Physics

Author: Giacomo Livan
Title: Criticita` auto-organizzata [Self-organized criticality]
Advisor: Oreste Nicrosini
University: Pavia
Date: 27 October 2006
Degree: triennal in Physics

Other publications

COSENZA
V.S. Fadin, R. Fiore, A.V. Grabovsky and A. Papa,
"The dipole form of the gluon part of the BFKL kernel",
arXiv:0705.1885, to appear on Nucl. Phys. B.

R. Fiore, V.R. Zoller,
"Color dipoles, PCAC and Adler's theorem",
hep-ph/0702291.

R. Fiore, L.L. Jenkovszky, V.K. Magas, F. Paccanoni, A. Prokudin,
"J/Psi photoproduction in a dual model",
dedicated to Professor Anatoly I. Bugrij on the occasion of his 60th birthday.
hep-ph/0702209.

D.Yu. Ivanov and A. Papa,
"NLO BFKL at work: the electroproduction of two light vector mesons,
in DIFFRACTION 2006,
Proceedings of the International Workshop on Diffraction in High Energy Physics,
Milos, Greece, 5 - 10 September 2004,
Proceedings of Science, PoS DIFF2006 (2006) 027/1-7, hep-ph/0612322.

A. Papa,
"NLO BFKL at work: the electroproduction of two light vector mesons",
talk given at CERN, November 30, 2006.

FERRARA

J. Alwall {it et al.},
``Comparative study of various algorithms for the merging of parton showers
and matrix elements in hadronic collisions,''
arXiv:0706.2569 [hep-ph].

E. Gabrielli, F. Maltoni, B. Mele, M. Moretti, F. Piccinini and R. Pittau,
``Higgs boson production in association with a photon in vector boson fusion
at the LHC,''
arXiv:hep-ph/0702119.

C. Buttar {it et al.},
``Les Houches physics at TeV colliders 2005, standard model, QCD, EW, and
Higgs working group: Summary report,''
arXiv:hep-ph/0604120.

F. Piccinini, C. M. Carloni Calame, G. Montagna, O. Nicrosini, M. Moretti and A. D. Polosa,
``QED corrections to Higgs boson decay into four leptons at the LHC,''
PoS {bf HEP2005} (2006) 307.

V. Del Duca, M. L. Mangano, M. Moretti, F. Piccinini, R. Pittau and A. D. Polosa,
``Studies Of G G $to$ H J J Background To Weak Boson Fusion Higgs
Production,''
PoS {bf HEP2005} (2006) 078.

C. M. Carloni Calame, M. Moretti, G. Montagna, O. Nicrosini, F. Piccinini and A. D. Polosa,
``Impact of QED corrections to Higgs decay into four leptons at the LHC,''
Nucl. Phys. Proc. Suppl. {bf 157} (2006) 73
[arXiv:hep-ph/0604033].

C. M. Carloni Calame, G. Montagna, O. Nicrosini and M. Treccani,
``Multiple Photon Corrections To W And Z Boson Production At Hadron
Colliders,''
AIP Conf. Proc. {bf 794} (2005) 58.

FIRENZE

S. Catani,
``QCD radiative corrections to Higgs boson production at the Tevatron
and the LHC,''
Nucl. Phys. Proc. Suppl. {bf 157} (2006) 202.

C. Buttar {it et al.} [S. Catani and M. Grazzini in the author list],
``Les Houches physics at TeV colliders 2005, standard model, QCD, EW, and
Higgs working group: Summary report,''
arXiv:hep-ph/0604120.

S. Catani,
`Higgs Boson Production Via Gluon Fusion At Hadron Colliders,''
AIP Conf. Proc. {bf 806} (2006) 67.

M. Grazzini,
``Soft-gluon effects in the H --> W W search channel at the LHC,''
arXiv:hep-ph/0607018,
{it Proceedings of the 41st Rencontres de Moriond: QCD and Hadronic
Interactions, La Thuile, Italy, 18-25 Mar 2006}

M. Grazzini,
``The transverse momentum distribution of the Higgs boson at the LHC,''
PoS {bf HEP2005} (2006) 045
[arXiv:hep-ph/0512025].

M. Ciafaloni,
``Infrared sensitive physics in QCD and in electroweak theory,''
arXiv:hep-ph/0612067.
{it in the volume String Theory of Fundamental Interactions,
published on the 65th birthday of Gabriele Veneziano, M. Gasperini
and J. Maharana editors (Springer, Berlin Heidelberg, 2007}.

S. Alekhin {it et al.} [M. Ciafaloni and D. Colferai in the author list],
``HERA and the LHC - A workshop on the implications of HERA
for LHC physics: Proceedings Part B,''
arXiv:hep-ph/0601013.

S. Alekhin {it et al.} [M. Ciafaloni and D. Colferai in the author list],
``HERA and the LHC - A workshop on the implications of HERA
for LHC physics: Proceedings Part A,''
arXiv:hep-ph/0601012.

D. Colferai,
``Small-X Resummation And Factorisation Schemes,''
{it Proceedings of the 14th International Workshop on Deep Inelastic
Scattering (DIS 2006), Tsukuba, Japan, 20-24 Apr 2006}

M. Dittmar {it et al.} [M. Ciafaloni and D. Colferai in the author list],
``Parton distributions: Summary report for the HERA - LHC workshop,''
arXiv:hep-ph/0511119.

M. Ciafaloni,
``Small-x QCD: The (improved) perturbative picture,''
Nucl. Phys. Proc. Suppl. {bf 146} (2005) 129.

MILANO-BICOCCA
A. Banfi,
``Three-jet event-shapes: first NLO+NLL+1/Q results,''
arXiv:0706.2722 [hep-ph].

P. Nason,
``Embedding Nlo Calculations In Shower Event Generators With Positive
Weights,''
href{http://www.slac.stanford.edu/spires/find/hep/www?irn=7190220}{SPIRES entry}
{it Prepared for 14th International Workshop on Deep Inelastic Scattering (DIS 2006), Tsukuba, Japan, 20-24 Apr 2006}

M. Beccaria, Yu. L. Dokshitzer and G. Marchesini,
``Twist 3 of the sl(2) sector of N=4 SYM and reciprocity respecting
evolution,''
arXiv:0705.2639 [hep-th].

A. Banfi, G. P. Salam and G. Zanderighi,
``Accurate QCD predictions for heavy-quark jets at the Tevatron and LHC,''
arXiv:0704.2999 [hep-ph].

M. L. Mangano and P. Nason,
``Radiative quarkonium decays and the NMSSM Higgs interpretation of the
hyperCP Sigma+ --> p mu+ mu- events,''
arXiv:0704.1719 [hep-ph].

G. Marchesini,
``From QCD Lagrangian to Monte Carlo simulation,''
arXiv:hep-ph/0701268.

G. Marchesini,
``QCD review,''
arXiv:hep-ph/0611115.

A. Banfi,
``Resummations in QCD: Recent developments,''
arXiv:hep-ph/0610093.

M. Cacciari, P. Nason and C. Oleari,
``Power-suppressed effects in heavy quark fragmentation functions,''
{it In the Proceedings of FRIF workshop on first principles non-perturbative QCD of hadron jets, LPTHE, Paris, France, 12-14 Jan 2006, pp E005}
[arXiv:hep-ph/0607022].

G. Marchesini,
``Relating small Feynman and Bjorken x,''
arXiv:hep-ph/0605262.

A. Banfi,
``Why multi-jet studies?,''
{it In the Proceedings of FRIF workshop on first principles non-perturbative QCD of hadron jets, LPTHE, Paris, France, 12-14 Jan 2006, pp B001}
[arXiv:hep-ph/0605125].

J. R. Andersen {it et al.} [Small x Collaboration],
``Small x phenomenology: Summary of the 3rd Lund small x workshop in 2004,''
Eur. Phys. J. C {bf 48} (2006) 53
[arXiv:hep-ph/0604189].

C. Buttar {it et al.},
``Les Houches physics at TeV colliders 2005, standard model, QCD, EW, and
Higgs working group: Summary report,''
arXiv:hep-ph/0604120.

G. Marchesini,
``Soft gluon emission at large angles,''
arXiv:hep-ph/0601068.

S. Alekhin {it et al.},
``HERA and the LHC - A workshop on the implications of HERA for LHC physics:
Proceedings Part B,''
arXiv:hep-ph/0601013.

S. Alekhin {it et al.},
``HERA and the LHC - A workshop on the implications of HERA for LHC physics:
Proceedings Part A,''
arXiv:hep-ph/0601012.

A. Banfi,
``Dijet rates with symmetric E(T) cuts,''
arXiv:hep-ph/0512213.

A. Banfi and E. Laenen,
``Joint resummation for heavy quark production,''
arXiv:hep-ph/0510149.

A. Banfi, G. Corcella, M. Dasgupta, Y. Delenda, G. P. Salam and G. Zanderighi,
``Resummation (HERA-LHC workshop),''
arXiv:hep-ph/0508096.

G. Marchesini,
``Jet evolution and Monte Carlo,''
arXiv:hep-ph/0501215.

PAVIA

Editors: G. Montagna, O. Nicrosini and V. Vercesi
Title: Proceedings of Italian meeting on High Energy Physics (IFAE 2006)
Reference: Pavia, 19-21 April 2006, Springer 2007

Authors: C.E. Gerber,...C.M. Carloni Calame,..., G. Montagna,...,
O. Nicrosini et al
Title: Tevatron-for-LHC Report: Top and Electroweak Physics
Reference: FERMILAB-CONF-07-052, arXiv:0705.3251 [hep-ph]

Authors: C. Buttar...C.M. Carloni Calame,..., G. Montagna,...,
O. Nicrosini,...F. Piccinini et al
Title: Les Houches Physics at TeV Colliders 2005, Standard Model and Higgs
working group: Summary report
Reference: hep-ph/0604120 (Les Houches Proceedings 2005)

Authors: C.M. Carloni Calame, G. Montagna, M. Moretti,
O. Nicrosini, F. Piccinini, A.D. Polosa
Title: Impact of QED corrections to Higgs decay into four leptons
at the LHC
Reference: Nucl. Phys. Proc. Suppl. 157 (2006) 73, Proceedings of
RADCOR 2005, Japan, 2-7 October 2005

Authors: N. Brambilla, ... F. Piccinini...et al.
Title: Heavy Quarkonium Physics
Reference: CERN Report, CERN-2005-005, CERN, Geneva (2005).

PARMA

E.Gabrielli and L.Trentadue,
Light Mesons And Muon Radiative Decays And Photon Polarization
Nucl. Phys. Proc. Suppl. {bf 162} (2006) 153.

L. Trentadue,
Measuring The Running Of Alpha In Small Angle Bhabha Scattering,
Nucl. Phys. Proc. Suppl. {bf 162} (2006) 73.

L. Trentadue
Perturbative QCD corrections and transverse momentum
distribution in b ---> gamma.
7th International Symposium on Radiative
Corrections: Application of Quantum Field Theory to Phenomenology (RADCOR
2005), Shonan Village, Kanagawa, Japan, 2-7 Oct 2005.
Published in
Nucl.Phys.Proc.Suppl.157:96-100,2006.

L. Trentadue
Perturbative QCD
corrections to b ---> s gamma.
International Workshop on Quantum
Chromodynamics: QCD@Work 2005, Conversano, Bari, Italy, 16-20 Jun 2005.

Published in AIP Conf.Proc.806:80-88,2006.

.Trentadue
Measuring alpha_QED in
e+e-: An alternative approach
Fourth Internationa Workshop on Frontier Science
New Frontiers in Subnuclear Physics
Universita' di Milano Bicocca September
12-15 2005
Published in Frascati Physics Series Volume XL, p .217-222
A.
Pullia and M. Paganoni Eds., June 2006

Financial requests

Site	Missioni interne	Missioni estere	Inviti ospiti stranieri	Tot
Bologna	4.00	9.00	3.00	16.00
Cosenza	3.00	5.00	6.00	14.00
Ferrara	1.50	2.00		3.50
Firenze	2.50	15.00		17.50
Lecce	0.50	2.00		2.50
Milano Bicocca	5.00	9.00	11.50	25.50
Parma	1.50	2.50		4.00
Pavia	3.00	9.00		12.00
Totals	21.00	53.50	20.50	95.00