Quark Transverse Momentum Distributions inside a nucleon : a Light-Front Hamiltonian Dynamics study
High Energy Physics - Phenomenology
2013-02-12 v1 Nuclear Theory
Abstract
Through an impulse approximation analysis of single spin Sivers and Collins asymmetries in the Bjorken limit, the possibility to extract the quark transverse-momentum distributions in the neutron from semi-inclusive deep inelastic electron scattering off polarized 3He is illustrated. The analysis is generalized to finite momentum transfers in a light-front Poincare' covariant framework, defining the light-front spin-dependent spectral function of a J=1/2 system. The definition of the light-front spin-dependent spectral function for constituent quarks in the nucleon allows us to show that, within the light-front dynamics, only three of the six leading twist T-even transverse-momentum distributions are independent.
Cite
@article{arxiv.1302.2344,
title = {Quark Transverse Momentum Distributions inside a nucleon : a Light-Front Hamiltonian Dynamics study},
author = {Emanuele Pace and Giovanni Salme' and Sergio Scopetta and Alessio Del Dotto},
journal= {arXiv preprint arXiv:1302.2344},
year = {2013}
}