Rigorous QCD predictions for decays of P-wave quarkonia
Abstract
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.
- Publication:
-
Presented at the Meeting of the Division of Particles and Fields of the American Physics Society
- Pub Date:
- November 1992
- DOI:
- 10.48550/arXiv.hep-ph/9211253
- arXiv:
- arXiv:hep-ph/9211253
- Bibcode:
- 1992dpf..meet...10B
- Keywords:
-
- Annihilation Reactions;
- Decay Rates;
- P Waves;
- Phenomenology;
- Quantum Chromodynamics;
- Theorems;
- Infrared Radiation;
- Logarithms;
- Quarks;
- S Waves;
- Atomic and Molecular Physics;
- High Energy Physics - Phenomenology
- E-Print:
- (minor revisions to clarify concepts, fix typos), 4 pages, ANL-HEP-CP-92-109