Transverse momentum distributions and nuclear effects
1 Dipartimento di Fisica, Università di Roma “Tor Vergata” and INFN, Roma 2, Italy
2 Dipartimento di Fisica, Università di Roma Tre and INFN, Roma 3, Italy
3 Bogoliubov Lab. Theor. Phys., 141980, JINR, Dubna, Russia
4 Dipartimento di Fisica e Geologia, Università di Perugia and INFN, Sezione di Perugia, Italy
5 INFN Sezione di Roma, Italy
a e-mail: email@example.com
Published online: 23 January 2015
A distorted spin-dependent spectral function for 3He is considered to take care of the final state interaction in the extraction of the quark transverse-momentum distributions in the neutron from semi-inclusive deep inelastic electron scattering off polarized 3He at finite momentum transfers. The generalization of the analysis in a Poincaré covariant framework within the light-front dynamics is outlined. The definition of the light-front spin-dependent spectral function for a J=1/2 system, as the nucleon, allows us to show that within the light-front dynamics and in the valence approximation only three of the six leading twist T-even transverse-momentum distributions are independent.
© Owned by the authors, published by EDP Sciences, 2015
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.