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Two-photon and two-gluon decays of p-wave heavy quarkonium using a covariant light-front approach (1005.2811v3)
Published 17 May 2010 in hep-ph and hep-ex
Abstract: 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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