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
22 papers · 2 filters
H -> gamma gamma: a Comment on the Indeterminacy of Non-Gauge-Invariant Integrals
F. Piccinini, A. Pilloni, A. D. Polosa
We reanalyze the recent computation of the amplitude of the Higgs boson decay into two photons presented by Gastmans et al.. The reasons for which this result cannot be the correct…
NNLO massive corrections to Bhabha scattering and theoretical precision of BabaYaga@NLO
C. M. Carloni Calame, H. Czyz, J. Gluza +6
We provide an exact calculation of next-to-next-to-leading order (NNLO) massive corrections to Bhabha scattering in QED, relevant for precision luminosity monitoring at meson facto…
The quark orbital angular momentum from Wigner distributions and light-cone wave functions
C. Lorce', B. Pasquini, X. Xiong +1
We investigate the quark orbital angular momentum of the nucleon in the absence of gauge-field degrees of freedom, by using the concept of the Wigner distribution and the light-con…
Pretzelosity TMD and Quark Orbital Angular Momentum
C. Lorce', B. Pasquini
We study the connection between the quark orbital angular momentum and the pretzelosity transverse-momentum dependent parton distribution function. We discuss the origin of this re…
Testing the Special Relativity Theory with Neutrino interactions
Paolo Walter Cattaneo
A recent measurement of neutrino velocity by the OPERA experiment and prediction of energy loss of superluminal neutrino via the pair creation process stimulated a s…
On the Role of the Running Coupling Constant in a Quark Model Analysis of T-odd TMDs
A. Courtoy
We revisit the standard procedure to match non-perturbative models to perturbative QCD, using experimental data. The strong coupling constant plays a central role in the QCD evolut…
Quark Wigner Distributions
B. Pasquini, C. Lorcé
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space and combine in a single picture all the information con…
Transverse-Momentum Distributions and Spherical Symmetry
Cedric Lorce, Barbara Pasquini
Transverse-momentum dependent parton distributions (TMDs) are studied in the framework of quark models. In particular, quark model relations among TMDs are reviewed and their physi…
Standard Model Higgs-Boson Branching Ratios with Uncertainties
A. Denner, S. Heinemeyer, I. Puljak +2
We present an update of the branching ratios for Higgs-boson decays in the Standard Model. We list results for all relevant branching ratios together with corresponding uncertainti…
Constraining quark angular momentum through semi-inclusive measurements
Alessandro Bacchetta, Marco Radici
The determination of quark angular momentum requires the knowledge of the generalized parton distribution E in the forward limit. We assume a connection between this function and t…
NNLO leptonic and hadronic corrections to Bhabha scattering and luminosity monitoring at meson factories
C. Carloni Calame, H. Czyz, J. Gluza +6
Virtual fermionic N_f = 1 and N_f = 2 contributions to Bhabha scattering are combined with realistic real corrections at next-to-next-to-leading order in QED. The virtual correctio…
Quark Wigner Distributions and Orbital Angular Momentum
Cedric Lorce, Barbara Pasquini
We study the Wigner functions of the nucleon which provide multidimensional images of the quark distributions in phase space. These functions can be obtained through a Fourier tran…
The momentum distribution of J/psi in B decays
TJ Burns, F Piccinini, AD Polosa +2
The discrepancy between theory and data in the momentum distribution of slow J/psi in B decays has been several times addressed as a puzzle. Using the most recent results on exclus…
Nucleon Polarizabilities: Theory
B. Pasquini, D. Drechsel, M. Vanderhaeghen
We review recent developments in the theoretical investigation of the nucleon polarizabilities. We first report on the static polarizabilities as measured in real Compton scatterin…
On the Origin of Model Relations among Transverse-Momentum Dependent Parton Distributions
C. Lorce, B. Pasquini
Transverse-momentum dependent parton distributions (TMDs) are studied in the framework of quark models. In particular, quark-model relations among TMDs are reviewed, elucidating th…
First glances at the transversity parton distribution through dihadron fragmentation functions
Alessandro Bacchetta, A. Courtoy, Marco Radici
We present first observations of the transversity parton distribution based on an analysis of pion-pair production in deep inelastic scattering off transversely polarized targets.…
Light dark forces at flavor factories
L. Barzè
SuperB experiment could represent an ideal environment to test a new U (1) symmetry related to light dark forces candidates. A promising discovery channel is represented by the res…
Strong Couplings of X(3872)_{J=1,2} and a New Look at J/psi Suppression in Heavy Ion Collisions
Federico Brazzi, Benjamin Grinstein, Fulvio Piccinini +2
We define and compute from data the strong couplings of the X(3872) with both of the possible quantum numbers assignments J^{PC}=1^{++},2^{-+}. We use these to compute cross sectio…
Naive time-reversal odd phenomena in semi-inclusive deep-inelastic scattering from light-cone constituent quark models
B. Pasquini, P. Schweitzer
We present results for leading-twist azimuthal asymmetries in semi-inclusive lepton-nucleon deep-inelastic scattering due to naively time-reversal odd transverse-momentum dependent…
Non-perturbative momentum dependence of the coupling constant and hadronic models
A. Courtoy, S. Scopetta, V. Vento
Models of hadron structure are associated with a hadronic scale which allows by perturbative evolution to calculate observables in the deep inelastic region. The resolution of Dyso…
Unified framework for generalized and transverse-momentum dependent parton distributions within a 3Q light-cone picture of the nucleon
Cédric Lorcé, Barbara Pasquini, Marc Vanderhaeghen
We present a systematic study of generalized transverse-momentum dependent parton distributions (GTMDs). By taking specific limits or projections, these GTMDs yield various transve…
Compton scattering from chiral dynamics with unitarity and causality
A. M. Gasparyan, M. F. M. Lutz, B. Pasquini
Proton Compton scattering is analyzed with the chiral Lagrangian. Partial-wave amplitudes are obtained by an analytic extrapolation of subthreshold reaction amplitudes computed in…