eta_c Production at the Tevatron: A test of NRQCD

Details eta_c Production at the Tevatron: A test of NRQCD eta_c Production at the Tevatron: A test of NRQCD

1998-03-23

arxiv.org/abs/hep-ph/9803424v2

Phys.Lett. B438 (1998) 336-340

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, LaTeX, 1 ps figure, Revised version to appear in Physics Letters B

Scientific paper

10.1016/S0370-2693(98)00990-3

We use NRQCD to predict the cross section for $\eta_c$ production at the Tevatron. The non-perturbative matrix elements required are obtained, using heavy-quark symmetry, from the matrix elements determined from the CDF $J/\psi$ data. Our numbers are, therefore, predictions of NRQCD and provide a very good test of it. Even after taking into account the small branching ratio of the $\eta_c$ into two photons, a substantial rate for the production of this resonance at the Tevatron is expected.

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