3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PaviaIT2.8k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT2.6k papers
- European Organization for Nuclear ResearchCH2.5k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.5k papers
- Centre National de la Recherche ScientifiqueFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
- National and Kapodistrian University of AthensGR2.4k papers
- The Ohio State UniversityUS2.4k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2.4k papers
- Institut de Recherche sur les Lois Fondamentales de l'UniversFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.4k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.3k papers
25 papers · 2 filters
Chiral-Odd Generalized Parton Distributions, Transversity and Double Transverse-Spin Asymmetry in Drell-Yan Dilepton Production
M. Pincetti, B. Pasquini, S. Boffi
Within the framework of light-cone quantization we derive the overlap representation of generalized parton distributions for transversely polarized quarks using the Fock-state deco…
Beam-helicity asymmetry in photon and pion electroproduction in the Delta(1232) resonance region at Q^2= 0.35 (GeV/c)^2
A1 Collaboration, I. K. Bensafa, P. Achenbach +40
The beam-helicity asymmetry has been measured simultaneously for the reactions (e p \to e p γ) and (e p \to e p π^0) in the resonance region at 0.35 (GeV/c). T…
Drell-Yan processes, transversity and light-cone wavefunctions
B. Pasquini, M. Pincetti, S. Boffi
The unpolarized, helicity and transversity distributions of quarks in the proton are calculated in the overlap representation of light-cone wavefunctions truncated to the lowest or…
Matching matrix elements and shower evolution for top-quark production in hadronic collisions
Michelangelo L. Mangano, Mauro Moretti, Fulvio Piccinini +1
We study the matching of multijet matrix elements and shower evolution in the case of top production in hadronic collisions at the Tevatron and at the LHC. We present the results o…
T-odd distributions, breaking of long range correlations, and sudden entropy changes, in Drell-Yan high-energy processes
Andrea Bianconi
T-odd parton distribution functions in a Drell-Yan process are here studied by examining the evolution of the internal statistical properties of the interacting hadrons. T-odd func…
Effective role of unpolarized nonvalence partons in Drell-Yan single spin asymmetries
Andrea Bianconi, Marco Radici
We perform numerical simulations of the Sivers effect from single spin asymmetries in Drell-Yan processes on transversely polarized protons. We consider colliding antiprotons and p…
Chiral-Odd Generalized Parton Distributions and Transversity in Light-Front Constituent Quark Models
M. Pincetti, B. Pasquini, S. Boffi
We present the general framework to calculate chiral-odd generalized parton distributions in the overlap representation using the Fock-state decomposition in the transverse spin ba…
Matrix elements and Parton Shower in the event generator BABAYAGA
G. Balossini, C. M. Carloni Calame, G. Montagna +2
A new version of the event generator BABAYAGA is presented, which is based on an original matching of the Parton Shower approach with the complete exact O(alpha) matrix element for…
Electroweak corrections to the charged current Drell-Yan process
C. M. Carloni Calame, G. Montagna, O. Nicrosini +1
A concise review about the status of the calculation of radiative corrections to the Drell-Yan processes is presented. The effect of matching together exact electroweak O(alpha) co…
Ionization cooled ultra pure beta-beams for long distance neu-e to neu-mu transitions, theta13 phase and CP-violation
Carlo Rubbia
The key process is the observation of tiny oscillation mixing between numu and nue related to so far unknown theta13 amplitude, at distances corresponding to an invariant neutrino…
Precision electroweak calculation of the charged current Drell-Yan process
C. M. Carloni Calame, G. Montagna, O. Nicrosini +1
We present a detailed study of the charged current Drell-Yan process, which includes the exact O(alpha) electroweak corrections properly matched with leading-log effects due to mul…
Monte Carlo studies of the jet activity in Higgs + 2 jet events
V. Del Duca, G. Klämke, M. L. Mangano +5
Tree-level studies have shown in the past that kinematical correlations between the two jets in Higgs+2-jet events are direct probes of the Higgs couplings, e.g. of their CP nature…
Modeling dihadron fragmentation functions
Alessandro Bacchetta, Marco Radici
We present a model for dihadron fragmentation functions, describing the fragmentation of a quark into two unpolarized hadrons. We tune the parameters of our model to the output of…
Generalized parton distributions in a meson cloud model
B. Pasquini, S. Boffi
We present a model calculation of the generalized parton distributions where the nucleon is described by a quark core surrounded by a mesonic cloud. In the one-meson approximation,…
Extraction of proton form factors in the timelike region from single-polarized e+ e- -> \vec p anti-p events
Andrea Bianconi, Barbara Pasquini, Marco Radici
We have performed numerical simulations of the single-polarized e+ e- --> \vec p anti p process in kinematic conditions under discussion for a possible upgrade of the existing DAFN…
Matching perturbative and Parton Shower corrections to Bhabha process at flavour factories
G. Balossini, C. M. Carloni Calame, G. Montagna +2
We report on a high-precision calculation of the Bhabha process in Quantum Electrodynamics, of interest for precise luminosity determination of electron-positron colliders involved…
Extraction of proton form factors in the timelike region from unpolarized e+e- --> p pbar events
A. Bianconi, B. Pasquini, M. Radici
We have performed numerical simulations of the unpolarized e+e- --> p pbar process in kinematic conditions under discussion for a possible upgrade of the existing DAFNE facility. B…
A study on the feasibility of a precise measurement of the -dependence of the cross sections for Drell-Yan experiments at moderate energies
Andrea Bianconi
Recently, a reconsideration of Drell-Yan cross sections at moderate energies and masses has suggested the possibility of relevant enhancements of the cross sections in some kinemat…
On Statistical Mechanics Developments of Clan Concept in Multiparticle Production
M. Brambilla, A. Giovannini, R. Ugoccioni
Clan concept has been introduced in multiparticle dynamics in order to interpret the wide occurrence of negative binomial (NB) regularity in n-charged particle multiplicity distrib…
Impact of QED corrections to Higgs decay into four leptons at the LHC
C. M. Carloni Calame, M. Moretti, G. Montagna +3
At the LHC a precise measurement of the Higgs boson mass (if discovered), at the level of 0.1-1%, will be possible through the channel g g --> H --> 4l for a wide range of Higgs ma…
Positive Parity Scalar Mesons in the 1-2 GeV Mass Range
L. Maiani, F. Piccinini, A. D. Polosa +1
Based on the observation that K_0(1430) is lighter than its SU_3 counterpart, a_0(1450), we examine the possibility that these particles, together with f_0(1370), f_0(1500) and f_0…
Monte Carlo simulation of single spin asymmetries in pion-proton collisions
Andrea Bianconi, Marco Radici
We present Monte Carlo simulations of both the Sivers and the Boer-Mulders effects in the polarized Drell-Yan process at the center-of-mass energy…
Beam Cooling with ionisation losses
C. Rubbia, A. Ferrari, Y. Kadi +1
A novel type of particle "cooling", called Ionization Cooling, is applicable to slow (v of the order of 0.1c) ions stored in a small ring. The many traversals through a thin foil e…
e+e- --> e+e- pi0 pi0 at Daphne
F. Nguyen, F. Piccinini, A. D. Polosa
The production of the sigma(500) meson in gamma gamma --> pi0 pi0 is studied. In particular, the KLOE data collected during the DAPHNE run at sqrt(s)= 1 GeV are appropriate to this…