3.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of ParmaIT415 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaIT88 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di FirenzeIT84 papers
- Istituto Nazionale di Fisica NucleareIT68 papers
- Sapienza University of RomeIT61 papers
- Centre National de la Recherche ScientifiqueFR52 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PadovaIT50 papers
- University of PisaIT50 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT49 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT48 papers
- University of FlorenceIT44 papers
- Max Planck Institute for Gravitational PhysicsDE42 papers
69 papers · 1 filter
Minimal prescription corrected spectra in heavy quark decays
Leonardo Di Giustino, Giulia Ricciardi, Luca Trentadue
The Minimal Prescription procedure is applied to tame the Landau pole singularities of resummed formulae for heavy quark decays. Effects of the final quark mass are taken into acco…
Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data
S. Actis, A. Arbuzov, G. Balossini +53
We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing,…
Asymmetries involving dihadron fragmentation functions: from DIS to e+e- annihilation
Alessandro Bacchetta, Federico A. Ceccopieri, Asmita Mukherjee +1
Using a model calculation of dihadron fragmentation functions, we fit the spin asymmetry recently extracted by HERMES for the semi-inclusive pion pair production in deep-inelastic…
Flavor Changing Fermion-Graviton Vertices
G. Degrassi, E. Gabrielli, L. Trentadue
We study the flavor-changing quark-graviton vertex that is induced at the one-loop level when gravitational interactions are coupled to the standard model. Because of the conservat…
NLO Semi-inclusive Drell-Yan cross-section in Quantum ChromoDynamics as a Factorization Analyzer
Federico A. Ceccopieri, Luca Trentadue
We evaluate in perturbative QCD the semi-inclusive Drell-Yan cross-section for the production of a single hadron accompaining the lepton pair. We demonstrate to one loop level a co…
Comment on Resummation of Mass Distribution for Jets Initiated by Massive Quarks
Ugo Aglietti, Leonardo Di Giustino, Giancarlo Ferrera +1
We compute in the heavy quark effective theory the soft coefficient D_2 entering the resummation of next-to-next-to-leading threshold logarithms for jets initiated by a quark with…
Threshold Resummation in B --> X_c l nu_l Decays
Ugo Aglietti, Leonardo Di Giustino, Giancarlo Ferrera +3
We compute the QCD form factor resumming threshold logarithms in B --> X_c + l + nu_l decays to next-to-leading logarithmic approximation. We present an interpolation formula inclu…
An application of transverse-momentum-dependent evolution equations in QCD
Federico A. Ceccopieri, Luca Trentadue
The properties and behaviour of the solutions of the recently obtained -dependent evolution equations are investigated. When used to reproduce transverse momentum spectra of h…
A New Fracture Function Approach to QCD Initial State Radiation
Federico A. Ceccopieri, Luca Trentadue
Ordinary fracture functions, describing hadrons production in the deep inelastic scattering target fragmentation region, are generalized to account for the production of hadrons in…
The leading non-perturbative coefficient in the weak-coupling expansion of hot QCD pressure
F. Di Renzo, M. Laine, V. Miccio +2
Using Numerical Stochastic Perturbation Theory within three-dimensional pure SU(3) gauge theory, we estimate the last unknown renormalization constant that is needed for converting…
Transverse Momentum in Semi-inclusive Deep Inelastic Scattering
Federico Alberto Ceccopieri, Luca Trentadue
Within the framework of perturbative Quantum Chromodynamics we derive transverse momentum dependent distributions describing both current and target fragmentation in semi-inclusive…
Light Mesons and Muon Radiative Decays and Photon Polarization Asymmetry
Emidio Gabrielli, Luca Trentadue
We systematically compute and discuss meson and muon polarized radiative decays. Doubly differential distributions in terms of momenta and helicities of the final lepton and photon…
Consistency relations and degeneracies in (non)commutative patch inflation
Gianluca Calcagni
The consistency equations of patch inflation are considered in a next-to-leading-order slow-roll (SR) expansion. Some general aspects of braneworld degeneracy are pointed out, both…
Exact solution of BFKL equation in jet-physics
G. Marchesini, E. Onofri
It has been recently found that the heavy quark-antiquark QQbar pair multiplicity, in certain phase space region (QQbar at short distance, soft and with small velocity), satisfies…
Full O(alpha_S) Evaluation for b->s+gamma Transverse Momentum Distribution
U. Aglietti, R. Sghedoni, L. Trentadue
The full O(alpha_S) transverse momentum distribution for the b -> s+gamma decay is computed. Results are presented in analytic form. An improved expression for the coefficient func…
Transverse Momentum Distribution in b-> s Gamma
R. Sghedoni
We present the complete calculation of the transverse momentum distribution for the decay b->s Gamma. The contributions of the leading operator O_7 are computed: infrared logarithm…
Perturbative and non-perturbative aspects of heavy-quark fragmentation
Einan Gardi, Matteo Cacciari
We describe a new approach to heavy-quark fragmentation which is based on a resummed perturbative calculation and parametrization of power corrections, concentrating on the z -> 1…
The massless two-loop two-point function
Isabella Bierenbaum, Stefan Weinzierl
We consider the massless two-loop two-point function with arbitrary powers of the propagators and derive a representation, from which we can obtain the Laurent expansion to any des…
Subtraction terms for one-loop amplitudes with one unresolved parton
Stefan Weinzierl
Fully differential next-to-next-to-leading order calculations require a method to cancel infrared singularities. In a previous publication, I discussed the general setup for the su…
Charm Cross Sections for the Tevatron Run II
Matteo Cacciari, Paolo Nason
We present a calculation of the D^{*+}, D^+ and D^0 meson single inclusive production cross section for the Tevatron Run II. We use the FONLL approach in perturbative QCD, which, b…
Subtraction terms at NNLO
Stefan Weinzierl
Perturbative calculations at next-to-next-to-leading order for multi-particle final states require a method to cancel infrared singularities. I discuss the subtraction method at NN…
Heavy-Quark Fragmentation
Matteo Cacciari, Einan Gardi
We study perturbative and non-perturbative aspects of heavy-quark fragmentation into hadrons, emphasizing the large-x region, where x is the energy fraction of the detected hadron.…
QCD two-loop amplitudes for e+e- --> 3 jets: the fermionic contribution
S. Moch, P. Uwer, S. Weinzierl
We review a new technique for the calculation of two-loop amplitudes and discuss as an example the fermionic contributions to e+ e- --> q qbar g.
Soft-Gluon Resummation for Bottom Fragmentation in Top Quark Decay
Matteo Cacciari, Gennaro Corcella, Alexander D. Mitov
We study soft-gluon radiation in top quark decay within the framework of perturbative fragmentation functions. We present results for the b-quark energy distribution, accounting fo…