The Flavor and Spin Structure of Hyperons from Quark Fragmentation
Abstract
We systematically study the hadron longitudinal polarizations of the octet baryons at large from quark fragmentations in -annihilation, polarized charged lepton deep inelastic scattering (DIS) process, and neutrino (antineutrino) DIS process, based on predictions of quark distributions for the octet baryons in the SU(6) quark-spectator-diquark model and a perturbative QCD based counting rule analysis. We show that the -annihilation and polarized charged lepton DIS process are able to distinguish between the two different predictions of the hyperon polarizations. We also find that the neutrino/antineutrino DIS process is ideal in order to study both the valence content of the hyperons and the antiquark to hyperon (quark to anti-hyperon) fragmentations, which might be related to the sea content of hyperons.
Cite
@article{arxiv.hep-ph/0008295,
title = {The Flavor and Spin Structure of Hyperons from Quark Fragmentation},
author = {Bo-Qiang Ma and Ivan Schmidt and Jacques Soffer and Jian-Jun Yang},
journal= {arXiv preprint arXiv:hep-ph/0008295},
year = {2009}
}
Comments
32 latex pages, 11 figures, a misprint in Table 1 corrected, reference updated, to appear in PRD