Chiral-odd distribution functions in the chiral quark soliton model

Details Chiral-odd distribution functions in the chiral quark soliton model Chiral-odd distribution functions in the chiral quark soliton model

2000-12-25

arxiv.org/abs/hep-ph/0012331v2

Phys.Lett. B509 (2001) 59-68

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, latex, 5 eps_fig

Scientific paper

10.1016/S0370-2693(01)00200-3

The recent measurements of azimuthal single spin asymmetries by the HERMES collaboration has opened up new possibility to measure chiral-odd distribution functions through semi-inclusive deep-inelastic scatterings. Here, predictions are given for the twist-2 and twist-3 chiral-odd distribution functions of the nucleon within the framework of the chiral quark soliton model, with full inclusion of the vacuum polarization effects as well as the subleading $1/N_c$ corrections. The importance of the vacuum polarization effects is demonstrated by showing that the so-called Soffer inequality holds not only for the quark distributions but also for the antiquark ones.

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