Semileptonic Decays of Bs Mesons into Dsl and Ds2 in HQET

Semileptonic Decays of Bs Mesons into Dsl and

Ds2 in HQET

甘龙飞;黄明球

【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2012(057)001

【摘要】In the framework of the heavy quark effective theory, the leading order Isgur-Wise functions relevant to semileptonie decays of the orbitally P-wave excited Bs meson states Bs＊, including the newly found narrow Bs1 （5830） andBs2（5840） states, into the （Ds1（2536）, Ds2（2573）） doublet are calculated from QCD sum rules. With these universal form factors, the decay rates and branching ratios are also estimated. 【总页数】8页(85-92)

【关键词】介子衰变;DSL;QCD求和规则;Bs;分段函数;重夸克;分支比;衰变率 【作者】甘龙飞;黄明球

【作者单位】Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, China;Department of Physics, College of Science, National University of Defense Technology, Changsha 410073, China 【正文语种】中文

【中图分类】O572.243;TL594 【相关文献】