Hyperon Polarization in Unpolarized Scattering Processes
نویسندگان
چکیده
Abstract Transverse polarization in the Hyperon (Λ) 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.
منابع مشابه
ep - p h / 97 08 48 8 v 3 2 5 N ov 1 99 7 Hyperon polarization and single spin left - right asymmetry in inclusive production processes at high energies
It is shown that the polarization of hyperons observed in high energy collisions using unpolarized hadron beams and unpolarized nucleon or nuclear targets is closely related to the left-right asymmetries observed in single spin inclusive hadron production processes. The relationship is most obvious for the production of the hyperons which have only one common valence quark with the projectile. ...
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