Rigorous QCD Predictions for Decays of P-Wave Quarkonia

Details Rigorous QCD Predictions for Decays of P-Wave Quarkonia Rigorous QCD Predictions for Decays of P-Wave Quarkonia

1992-11-17

arxiv.org/abs/hep-ph/9211253v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

(minor revisions to clarify concepts, fix typos), 4 pages, ANL-HEP-CP-92-109

Scientific paper

We present a new factorization theorem for the decay rates of P-wave states of heavy quarkonia. Infrared logarithms that had appeared in previous perturbative calculations of P-wave decays are absorbed into a quantity that is related to the amplitude for the heavy quark and antiquark to be in a relative color-octet S-wave state. We predict all of the light-hadronic and electromagnetic decays rates of the $\chi_c$ and $h_c$ states in terms of two phenomenological parameters.

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