Spectroscopy,decay properties and Regge trajectories of the B and B_s mesons

作     者：Virendrasinh Kher Nayneshkumar Devlani Ajay Kumar Rai 

作者机构：Applied Physics DepartmentPolytechnicThe M.S.University of Baroda Department of Applied PhysicsSardar Vallabhbhai National Institute of Technology 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2017年第41卷第9期

页      面：8-18页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：the financial support extended by the Department of Science of Technology India under SERB fast track scheme SR/FTP/PS-152/2012 

主　　题：potential model mass spectrum decay constant Regge trajectories 

摘      要：A Gaussian wave function is used for detailed study of the mass spectra of the B and Bs mesons using a Cornell potential incorporated with （1/m） correction in the potential energy term and expansion of the kinetic energy term up to （p10） for relativistic correction of the Hamiltonian. The predicted excited states for the B and Bs mesons are in very good agreement with results obtained by experiment. We assign B2（5747） and Bs2（5840） as the 1^3p2 state, B1（5721） and Bs1（5830） as the 1P1 state, B0（5732） as the 1^3P0 state, Bs1（5850） as the 1P1 state and B（5970） as the 23S1 state. We investigate the Regge trajectories in the （J,M2） and （nr,M2） planes with their corresponding parameters. The branching ratios for leptonic and radiative-leptonic decays are estimated for the B and Bs mesons. Our results are in good agreement with experimental observations as well as outcomes of other theoretical models.