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
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DOI：
10.1103/physrevd.82.034021
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发表时间：
2010-05
影响因子：
5
通讯作者：
C. Hwang;R. Guo
中科院分区：
文献类型：
--
作者：
C. Hwang;R. Guo
本文研究了p波重夸克偶素中的双光子双胶子衰变。在协变光阵面框架下，导出了标量和张量夸克偶素态的湮灭率。在这种情况下，在没有自由参数的情况下，粲偶素衰变宽度的结果与实验数据是一致的。然而，与其他理论计算相比，我们的结果在bottomonia方面存在很大的差异。
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.