Reanalysis of the （0^＋, 1^＋） States Bs0 and Bs1 with QCD Sum Rules  

作　　者：王志刚 

机构地区：[1]Department of Physics, North China Electric Power University, Baoding 071003

出　　处：《Chinese Physics Letters》2008年第11期3908-3911,共4页中国物理快报（英文版）

基　　金：Supported by National Natural Science Foundation under Grant Nos 10405009 and 10775051, and the Programme for New Century Excellent Talents in University under Grant No NCET-07-0282.

摘　　要：We calculate the masses and decay constants of the P-wave strange-bottomed mesons Bs0 and Bs1 with the QCD sum rules, and observe that the central values of the masses Bs0 and Bs1 are smaller than the corresponding BK and B^＊K thresholds respectively, the strong decays Bs0→ BK and Bs1→B^＊K are kinematically forbidden. They can decay through the isospin violation processes Bs0→ Bsη → Bsπ^0 and Bs1 → Bs^＊η → Bs^＊π^0 .The bottomed mesons Bs0 and Bs1, just like their charmed cousins Ds0（2317） and Ds1（2460）, may be very narrow.We calculate the masses and decay constants of the P-wave strange-bottomed mesons Bs0 and Bs1 with the QCD sum rules, and observe that the central values of the masses Bs0 and Bs1 are smaller than the corresponding BK and B^＊K thresholds respectively, the strong decays Bs0→ BK and Bs1→B^＊K are kinematically forbidden. They can decay through the isospin violation processes Bs0→ Bsη → Bsπ^0 and Bs1 → Bs^＊η → Bs^＊π^0 .The bottomed mesons Bs0 and Bs1, just like their charmed cousins Ds0（2317） and Ds1（2460）, may be very narrow.

关 键 词：the power-law exponents precipitation durative abrupt precipitation change 

分 类 号：O413[理学—理论物理]