Polarized light-flavor antiquarks from Drell-Yan processes of h + N→ → l→± + l + X

H. Kitagawa, Y. Sakemi, T. Yamanishi

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1 Citation (Scopus)


We propose a formula to determine the first moment of difference between the polarized ū and d̄ quarks in the nucleon, i.e., Δū-Δd̄ from the Drell-Yan processes in collisions of unpolarized hadrons with longitudinally polarized nucleons by measuring outgoing lepton helicities. As coefficients in the differential cross section depend on the u- and d-quark numbers in the unpolarized hadron beam, the difference Δū-Δd̄ can be independently tested by changing the hadron beam. Moreover, a formula for estimating the K factor in Drell-Yan processes is also suggested.

Original languageEnglish
Article number051501
JournalPhysical Review D
Issue number5
Publication statusPublished - 2003

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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