Probing u d asymmetry in the proton via quarkonium production

J. C. Peng, D. M. Jansen, Y. C. Chen

Research output: Contribution to journalArticlepeer-review


The sensitivity of proton-induced J Ψ and Υ{hooked} production to the possible u d asymmetry in the nucleon is studied. The ratio of the quarkonium production cross sections at large xf on hydrogen over deuterium targets, σ(p + p) σ(p + d), is shown to be sensitive to this asymmetr. Predictions of various theoretical models for this ratio are presented.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalPhysics Letters B
Issue number1-4
StatePublished - Jan 26 1995
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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