Anti-Hyperon polarization in high energy pp collisions with polarized beams

Simple item page
dc.creatorChen, Ye
dc.creatorLiang, Zuo-tang
dc.creatorSichtermann, Ernst
dc.creatorXu, Qing-hua
dc.creatorZhou, Shan-shan
dc.date2007-07-04
dc.date2008-08-31
dc.date.accessioned2026-07-07T12:27:16Z
dc.date.available2026-07-07T12:27:16Z
dc.descriptionWe study the longitudinal polarization of the Sigma_bar and Xi_bar anti-hyperons in polarized high energy pp collisions at large transverse momenta, extending a recent study for the Lambda_bar anti-hyperon. We make predictions by using different parametrizations of the polarized parton densities and models for the polarized fragmentation functions. Similar to the Lambda_bar polarization, the Xi_bar0 and Xi_bar+ polarizations are found to be sensitive to the polarized anti-strange sea in the nucleon. The Sigma_bar- and Sigma_bar+ polarizations show sensitivity to the light sea quark polarizations, Δ\bar u(x) and Δ\bar d(x), and their asymmetry.
dc.description17 pages, 9 figures,version to appear in PRD
dc.identifierhttps://arxiv.org/abs/0707.0534
dc.identifierhttp://arxiv.org/abs/0707.0534
dc.identifierPhys.Rev.D78:054007,2008
dc.identifierdoi:10.1103/PhysRevD.78.054007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215149
dc.subjectHigh Energy Physics - Phenomenology
dc.titleAnti-Hyperon polarization in high energy pp collisions with polarized beams
dc.typetext

Files

Collections

arXiv