Study of semileptonic decays Bs→Ds1(2536)lν and Bs→Ds2(2573) lν in the CQM model

  • 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
    in future experiments.

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ZHAO Shu-Min, ZHANG Yin-Jie, YAN Yu-Li, LIU Li-Quan and WU Li-Ping. Study of semileptonic decays Bs→Ds1(2536)lν and Bs→Ds2(2573) lν in the CQM model[J]. Chinese Physics C, 2008, 32(8): 603-607. doi: 10.1088/1674-1137/32/8/002
ZHAO Shu-Min, ZHANG Yin-Jie, YAN Yu-Li, LIU Li-Quan and WU Li-Ping. Study of semileptonic decays Bs→Ds1(2536)lν and Bs→Ds2(2573) lν in the CQM model[J]. Chinese Physics C, 2008, 32(8): 603-607.  doi: 10.1088/1674-1137/32/8/002 shu
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Received: 2007-10-24
Revised: 2007-12-14
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Study of semileptonic decays Bs→Ds1(2536)lν and Bs→Ds2(2573) lν in the CQM model

    Corresponding author: ZHAO Shu-Min,

Abstract: 

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
in future experiments.

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