Longitudinal and Transverse Spin Transfer of Λ and Λ Hyperons in Polarized p+p Collisions at √(s) = 200 GeV at RHIC-STAR

2021/08/05 by Xu, Yike
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)

paper · doi:10.48550/arxiv.2108.02349

Abstract

Measurements of the longitudinal spin transfer, D_LL, and the transverse spin transfer, D_TT, of the Λ(Λ) hyperon in polarized p+p collisions are expected to be sensitive to the helicity distribution and transversity distribution of the s(s) quark in proton and the corresponding polarized fragmentation functions. This contribution presents the new preliminary results of the Λ(Λ) D_LL and D_TT using data collected at RHIC-STAR experiment in 2015, with twice larger statistics than previously published results.

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