Polarized antiquark flavor asymmetry in Drell-Yan pair production

Details Polarized antiquark flavor asymmetry in Drell-Yan pair production Polarized antiquark flavor asymmetry in Drell-Yan pair production

1999-10-25

arxiv.org/abs/hep-ph/9910464v1

Eur.Phys.J.C18:719-722,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX2e, 9 eps figures included

Scientific paper

10.1007/s100520100567

We investigate the role of the flavor asymmetry of the nucleon's polarized antiquark distributions in Drell-Yan lepton pair production in polarized nucleon-nucleon collisions at HERA (fixed-target) and RHIC energies. It is shown that the large polarized antiquark flavor asymmetry predicted by model calculations in the large-N_c limit (chiral quark-soliton model) has a dramatic effect on the double spin asymmetries in high mass lepton pair production, as well as on the single spin asymmetries in lepton pair production through $W^\pm$-bosons at $M^2 = M_W^2$.

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