Color-octet heavy quarkonium productions in Z0 decays at LEP
Abstract
We consider the energy and the polar angle distributions of J/'s produced via the color-singlet and the color-octet (3S1(8)) mechanisms in Z0 J/ +X at LEP. Since both distributions of the J/ produced via color-octet mechanism are significantly different from those via color-singlet mechanism, these observables can be used as tests of color-octet production mechanism for heavy quarkonia. We also discuss Z0 → + X and W J/ ( or ) + X in brief.
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