Semi-inclusive DIS cross sections and spin asymmetries in the quantum statistical parton distributions approach

2010/08/31 by C. Bourrely, Claude Bourrely, F. Buccella +2
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.83.074008

published as Phys.Rev.D83:074008,2011 · 27 pages, 12 figures, version published in Physical Review D

openalex publication_date 2011/04/11 · arxiv created 2011/04/27 · arxiv updated 2011/04/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We consider the extension of the statistical parton distributions to include their transverse momentum dependence, by using two different methods, one is based on our quantum statistical approach, the other on a relativistic covariant method. We take into account the effects of the Melosh-Wigner rotation for the polarized distributions. The results obtained can be compared with recent semi-inclusive deep inelastic scattering (DIS) data on the cross section and double longitudinal-spin asymmetries from JLab. We also give some predictions for future experiments on electron-neutron scattering.

Citations

• Quark intrinsic motion and the link between TMDs and PDFs in covariant approach
• Transverse momentum dependence of the quark helicity distributions and the Cahn effect in double-spin asymmetryALLin semiinclusive DIS