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arXiv 1804.08802hep-ph
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底和底奇异介子的衰变和谱

Decays and spectrum of bottom and bottom strange mesons

Ishrat Asghar, Bilal Masud, E. S. Swanson, Faisal Akram, M. Atif Sultan

摘要:

给出了$B$和$B_s$介子轨道和径向激发态的强衰变振幅和辐射部分宽度。这些结果是用非相对论势夸克模型、电磁跃迁算符的非相对论约化和强衰变的“$^3P_0$“模型得到的。在可能的情况下,将预测与实验进行比较,并对最近发现的状态,$B_1(5721)$,$B_2^*(5747)$,$B_J(5840)$,$B_J(5970)$,$B_{s1}(5830)$和$B_{s2}^*(5840)$进行分配。

英文摘要:

The strong decay amplitudes and radiative partial widths of orbital and radially excited states of $B$ and $B_s$ mesons are presented. These results are obtained with a nonrelativistic potential quark model, the nonrelativistic reduction of the electromagnetic transition operator, and the "$^3P_0$" model of strong decays. The predictions are compared to experiment where possible and assignments for the recently discovered states, $B_1(5721)$, $B_2^*(5747)$, $B_J(5840)$, $B_J(5970)$, $B_{s1}(5830)$, and $B_{s2}^*(5840)$, are made.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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