TWO--SPIN ASYMMETRY OF HEAVY QUARKONIA PRODUCTIONS AT RHIC ENERGY
T. Yamanishi, T. Morii, S. Tanaka
Abstract
Hadroproductions of charmonium and bottomonium χJ in polarized pp collisions at RHIC energies are studied. Two--spin asymmetries ALLχJ(pp) for these reactions are very good parameters for examining the polarized gluon distributions in a proton.
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