There are some uncertain characteristics of the D_(s1)(2536),which deserves further discussion.Based onthe assumption that the meson is constituted by c ,and belongs to T doublet (1^+,2^+),radiative decays D_(s1)(25...There are some uncertain characteristics of the D_(s1)(2536),which deserves further discussion.Based onthe assumption that the meson is constituted by c ,and belongs to T doublet (1^+,2^+),radiative decays D_(s1)(2536)→D_s(1968) + γ and D_(s1)(2536)→D_s~*(2112) + γ are studied in the CQM model.The large branching ratios of themfrom our calculations not only indicate the process may be detected in the future experiments,but also can give a deepcomprehension of the structure of it.展开更多
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） mod...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）＋ lv^- and B→ → Ds2 （2573）＋lv^-, 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.展开更多
基金Supported by National Natural Science Foundation of China under Grant No.10847117 Hebei Province Department of Education under Grant No.2007409 Doctor Foundation of Hebei University under Grant No.Y2006081
文摘There are some uncertain characteristics of the D_(s1)(2536),which deserves further discussion.Based onthe assumption that the meson is constituted by c ,and belongs to T doublet (1^+,2^+),radiative decays D_(s1)(2536)→D_s(1968) + γ and D_(s1)(2536)→D_s~*(2112) + γ are studied in the CQM model.The large branching ratios of themfrom our calculations not only indicate the process may be detected in the future experiments,but also can give a deepcomprehension of the structure of it.
基金Natural Science Fund of Hebei Province (A2005000090,E2005000129)Fund of Education Department of HebeiProvince (2007409)Natural Science Fund of Hebei University (2005007)
文摘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）＋ lv^- and B→ → Ds2 （2573）＋lv^-, 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.
