Nuclear Physics Seminar

"Probing the Sea Quark Polarization at RHIC/STAR"

Presented by Jinlong Zhang, Stony Brook University

Tuesday, February 5, 2019, 11:00 am — Small Seminar Room, Bldg. 510

Polarized proton-proton collision experiments at RHIC have provided unique opportunities to study the spin structure of the nucleon. One of the primary motivations of RHIC spin program is to probe sea quark spin-flavor structure via W-boson production in proton-proton collisions at a center of mass energy of 500 GeV. Measurements of the longitudinal single-spin asymmetry, A_L, of W-bosons with the STAR detector have provided significant constraints on the polarized parton distribution functions and especially the first experimental indication of a flavor asymmetry of polarized sea. In this seminar, I will present the analyses and latest results from STAR, as well as their impact on our knowledge of the sea quark helicity distributions.

Hosted by: Oleg Eyser

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