Transverse momentum distributions and nuclear effects

Autor: Pace Emanuele, Dotto Alessio Del, Kaptari Leonid, Rinaldi Matteo, Salmè Giovanni, Scopetta Sergio
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: EPJ Web of Conferences, Vol 85, p 02027 (2015)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/20158502027
Popis: 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.
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