| Study of semileptonic decays Bs→Ds1(2536)lν and Bs→Ds2(2573) lν in the CQM model |
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| 作者姓名： | 赵树民 张印杰 阎玉立 刘立全 武利平 |
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| 作者单位： | College of Physics Science and Technology, Hebei University, Baoding 071002, China |
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| 摘 要： | Based on the assumption that Ds1(2536) and Ds2(2573) belong to T doublet (1+,2+), we calculate the semileptonic decays of Bs to Ds1(2536) and Ds2(2573) in terms of the Constituent Quark Meson (CQM) model. For Bs→Ds1(2536)+lν and Bs→Ds2(2573)+lν, the order of magnitude of the obtained branching ratios is 10－3. Our numerical results of the semileptonic decays of Bs to Ds1(2536) and Ds2(2573) are large, which implies that two semileptonic decays should be seen
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| 关 键 词： | semileptonic decay CQM model branching ratios |
| 收稿时间： | 2007-10-24 |
| 修稿时间： | 2007-12-14 |
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