Hyperon Polarization in Unpolarized Scattering Processes

Details Hyperon Polarization in Unpolarized Scattering Processes Hyperon Polarization in Unpolarized Scattering Processes

2008-08-27

arxiv.org/abs/0808.3629v1

Phys.Rev.D78:114008,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 1 figure

Scientific paper

10.1103/PhysRevD.78.114008

Transverse polarization in the Hyperon production in the unpolarized deep inelastic scattering and pp collisions is studied in the twist-three approach, considering the contribution from the quark-gluon-antiquark correlation distribution in nucleon. We further compare our results for deep inelastic scattering to a transverse momentum dependent factorization approach, and find consistency between the two approaches in the intermediate transverse momentum region. We also find that in pp collisions, there are only derivative terms contributions, and the non-derivative terms vanish.

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