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eta_c Production at the Tevatron: A test of NRQCD

Prakash Mathews·P. Poulose·K. Sridhar
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Abstract

We use NRQCD to predict the cross section for $η_c$ production at the Tevatron. The non-perturbative matrix elements required are obtained, using heavy-quark symmetry, from the matrix elements determined from the CDF $J/ψ$ 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 $η_c$ into two photons, a substantial rate for the production of this resonance at the Tevatron is expected.

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Prakash Mathews, P. Poulose, K. Sridhar. 1998-08-11. eta_c Production at the Tevatron: A test of NRQCD. https://doi.org/10.1016/s0370-2693(98)00990-3

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