Transverse Λ0 polarization in inclusive quasi-real photoproduction: Quark scattering model

Abstract

The transverse polarization of Λ 0 hyperons produced in the inclusive ep reaction at the 27.6 GeV beam energy is assumed to appear mostly via scattering of the strange quark in a color field. Results of application of such an idea to the preliminary data of HERMES are presented. Contributions of Σ 0 , Ξ, and Σ * resonances to the polarization are taken into account.PACS numbers: 13.60.-r, 13.88.+e (to appear in Physics of Atomic Nuclei)

Quark scattering model of the transverse Λ 0 polarization and quark recombination approach

“…Additionally, the contribution of Σ 0 , Σ * and Ξ resonances were taken into account exactly in the way considered in ref. [32]. Its average value constitutes 13.3% of the total polarization.…”