Probing u-bar/d-bar Asymmetry in the Proton via Quarkonium Production

Details Probing u-bar/d-bar Asymmetry in the Proton via Quarkonium Production Probing u-bar/d-bar Asymmetry in the Proton via Quarkonium Production

1995-08-05

arxiv.org/abs/hep-ph/9508244v2

Phys.Lett. B344 (1995) 1-5

Physics

High Energy Physics

High Energy Physics - Phenomenology

latex file, ps file, 3 figures Uuencoded

Scientific paper

10.1016/0370-2693(94)01466-P

The sensitivity of proton-induced $J/\psi$ and $\Upsilon$ production to the possible $\bar u/\bar d$ asymmetry in the nucleon is studied. The ratio of the quarkonium production cross sections at large $x_F$ on hydrogen over deuterium targets, $\sigma (p+p) / \sigma (p+d)$, is shown to be sensitive to this asymmetry. Predictions of various theoretical models for this ratio are presented.

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