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arXiv 1401.7580hep-phhep-ex
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底介子$B_1(5721)$,PDMATHAAB,$B_{s1}(5830)$,$B_{s2}(5840)$和$B(5970)$的强衰变

Strong decays of the bottom mesons $B_1(5721)$, $B_2(5747)$, $B_{s1}(5830)$, $B_{s2}(5840)$ and $B(5970)$

Zhi-Gang Wang

摘要:

本文用重介子有效理论在首级近似下研究了底介子的两体强衰变,得到了S波、P波和D波底介子之间轻赝标介子跃迁衰变宽度的全部解析表达式。作为应用,我们尝试性地将底介子$B(5970)$分别指定为$2{\rm S}\,1^-$,$1{\rm D}\,1^-$和$1{\rm D}\,3^-$态,并计算了$B_1(5721)$,$B_2(5747)$,$B_{s1}(5830)$,$B_{s2}(5840)$和$B(5970)$的衰变宽度,以便将来与实验数据进行比较.

英文摘要:

In this article, we study the two-body strong decays of the bottom mesons with the heavy meson effective theory in the leading order approximation, and obtain all the analytical expressions of the decay widths of the light pseudoscalar mesons transitions among the S-wave, P-wave and D-wave bottom mesons. As an application, we tentatively assign the bottom meson $B(5970)$ as the $2{\rm S}\,1^-$, $1{\rm D}\,1^-$ and $1{\rm D}\,3^-$ states, respectively, and calculate the decay widths of the $B_1(5721)$, $B_2(5747)$, $B_{s1}(5830)$, $B_{s2}(5840)$ and $B(5970)$, which can be confronted with the experimental data in the future.

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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