Azimuthal spin asymmetries in light-cone constituent quark models

作者:Boffi S*; Efremov A V; Pasquini B; Schweitzer P
来源:Physical Review D - Particles, Fields, Gravitation and Cosmology, 2009, 79(9): 094012.
DOI:10.1103/PhysRevD.79.094012

摘要

We present results for all leading-twist azimuthal spin asymmetries in semi-inclusive lepton-nucleon deep-inelastic scattering due to T-even transverse-momentum dependent parton distribution functions on the basis of a light-cone constituent quark model. Attention is paid to discuss the range of applicability of the model, especially with regard to the scale dependence of the observables and the transverse-momentum dependence of the distributions. We find good agreement with available experimental data and present predictions to be further tested by future CLAS, COMPASS, and HERMES data.

  • 出版日期2009-5