1996/06/30 by Han-Wen Huang, Kuang-Ta Chao · 3 citations
Physics and Astronomy · #Annihilation #Hadron #High-Energy Particle Collisions Research #Nuclear physics #Order (exchange) #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ph
paper · pdf · doi:10.1103/physrevd.54.6850
published as Phys.Rev.D54:6850-6854,1996; Erratum-ibid.D56:1821,1997 · 10 pages Latex(5 figures included). We have corrected a numerical error in Eq.(5) and Eq.(11)
openalex publication_date 1996/12/01 · arxiv created 1996/12/29 · arxiv updated 2014/11/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The decay rates of P-wave heavy quarkonia to light hadrons are presented to leading order in v2 and next-to-leading order in \ensuremathαs. They include contributions from both the color-singlet component and the coloroctet component of quarkonia. Applying these results to charmonium and using measured decay rates for the \ensuremathχc1 and \ensuremathχc2 by E760, we determine the two nonperturbative decay matrix elements, and then predict the hadronic decay rates of \ensuremathχc0 and hc, and the electromagnetic decay rates of \ensuremathχc0 and \ensuremathχc2. The obtained decay rates of \ensuremathχc0\ensuremath→LH and \ensuremathχc0\ensuremath→\ensuremathγ\ensuremathγ are in agreement with the Crystal Ball results, and also with the new measurements by BES. However, the results for \ensuremathΓ(\ensuremathχc0\ensuremath→LH) are dependent on the choice of renormalization scale.