GPDs, their relationships with TMDs and related topics

Goldstein, G. R. and Liuti, S. and Gonzalez Hernandez, J.O. (2013) GPDs, their relationships with TMDs and related topics. Il nuovo cimento C, 36 (5). pp. 209-214. ISSN 1826-9885

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Abstract

Generalized Parton Distributions in the chiral odd sector are evaluated by examining their contribution to the quark proton helicity amplitudes, and by using Parity transformations to establish relations with the chiral even sector. The relations we find are valid in a spectator model where the recoiling system has total spin S=0,1. These relations allow us to fix the parameters for the chiral odd generalized parton distributions using results from a global analysis of unpolarized and longitudinally polarized experimental data in the kinematical region of intermediate Bjorken x and for Q2 in the multi-GeV region. Quantitative relations between chiral odd generalized parton distributions and transverse momentum dependent distributions are given, and their extension beyond spectator models is discussed. Contributions to the Generalized Transverse Momentum Distributions are obtained and considered in relation to observables. The related question about recoiling baryon polarizations is discussed.

Item Type: Article
Uncontrolled Keywords: Total and inclusive cross sections (including deep-inelastic processes) ; Electromagnetic form factors ; Quarks, gluons, and QCD in nuclear reactions
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 06 May 2020 16:42
Last Modified: 06 May 2020 16:42
URI: http://eprints.bice.rm.cnr.it/id/eprint/18349

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