Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach

Details Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach

2010-05-17

arxiv.org/abs/1005.2811v3

Phys.Rev.D82:034021,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 3 figures, 3 tables, some typos are corrected, version to be published in Phys. Rev. D

Scientific paper

In this paper, a study of two-photon and two-gluon decays in the context of p-wave heavy quarkonia is presented. Within the covariant light-front framework, the annihilation rates of scalar and tensor quarkonium states are derived. In the absence of free parameters in this case, the results for the charmonium decay widths are consistent with the experimental data. However, in comparison to other theoretical calculations, there are large discrepancies in our results regarding bottomonia.

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