Azimuthal single spin asymmetries in SIDIS in the light of chiral symmetry breaking

2003/10/28 by P. Schweitzer, Alessandro Bacchetta, A. Bacchetta · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.nuclphysa.2003.12.010

published as Nucl.Phys. A732 (2004) 106-124 · 14 pages, 18 figures

arxiv created 2003/10/28 · openalex publication_date 2003/12/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

An attempt is made to understand the z-dependence of the azimuthal single spin asymmetries observed by the HERMES collaboration in terms of chiral models based on effective quark and Goldstone boson degrees of freedom. The effects of respectively neglecting and considering Gaussian intrinsic parton transverse momenta and the Sivers effect are explored. Predictions for the transverse target polarization experiment at HERMES are presented.

Citations

• T-odd quark distributions: QCD versus chiral models
• Self-consistent calculation of parton distributions at low normalization point in the chiral quark-soliton model

Cited by

• Transversity in the chiral quark-soliton model and single spin asymmetries

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