Zobrazeno 1 - 10
of 108
pro vyhledávání: '"Trentadue, Luca"'
We reconsider the evolution equations for transverse momentum dependent distributions recently proposed by us and recast them in a form which allows the comparison with results recently appeared in the literature. We show under which conditions the o
Externí odkaz:
http://arxiv.org/abs/1407.7972
We investigate the role of the electroweak corrections to the scattering cross section of Standard Model fermions with gravity. We use both an approach of scattering off an external potential, where the gravitational field is treated as a classical b
Externí odkaz:
http://arxiv.org/abs/1312.7657
In the present work a consistent kinematic-based framework for glueball states is proposed. It relates the glueball, the Pomeron, QCD lattice calculations, the $0^{++}$ scalar states $f_0(1710)$ and $\chi_{c0}(1P)$, the $2^{++}$ states $f_J(2220)$ an
Externí odkaz:
http://arxiv.org/abs/1307.6201
Publikováno v:
Phys. Rev. D 88, 085008 (2013)
In a previous study, the flavor-changing fermion-graviton interactions have been analyzed in the framework of the standard model, where analytical results for the relevant form factors were obtained at the leading order in the external fermion masses
Externí odkaz:
http://arxiv.org/abs/1303.1305
Publikováno v:
Phys.Rev.D87:054020,2013
We extend a previous analysis of flavor-changing fermion-graviton vertices, by adding the one-loop SM corrections to the flavor diagonal fermion-graviton interactions. Explicit analytical expressions taking into account fermion masses for the on-shel
Externí odkaz:
http://arxiv.org/abs/1212.5029
Publikováno v:
Phys.Rev.D84:034017,2011
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 account. Explicit expressions are obtained for the t->b and b->c transitio
Externí odkaz:
http://arxiv.org/abs/1102.0331
Publikováno v:
Phys.Lett.B668:319-323,2008
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 collinear factorization formula within the fracture functions approach.
Externí odkaz:
http://arxiv.org/abs/0805.3467
Publikováno v:
Phys.Lett.B670:367-368,2009
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 a small mass compared to the hard scale of the process. We find comple
Externí odkaz:
http://arxiv.org/abs/0804.3922
Autor:
Aglietti, Ugo, Di Giustino, Leonardo, Ferrera, Giancarlo, Renzaglia, Alessandro, Ricciardi, Giulia, Trentadue, Luca
Publikováno v:
Phys.Lett.B653:38-52,2007
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 including soft as well as collinear effects softened by the non-vanishing c
Externí odkaz:
http://arxiv.org/abs/0707.2010
Publikováno v:
Phys.Lett.B660:43-48,2008
The properties and behaviour of the solutions of the recently obtained $k_t$-dependent evolution equations are investigated. When used to reproduce transverse momentum spectra of hadrons in Semi-Inclusive DIS, an encouraging agreement with data is fo
Externí odkaz:
http://arxiv.org/abs/0706.4242