Decay rates and electromagnetic transitions of heavy quarkonia

作     者：J.N.Pandya N.R.Soni N.Devlani A.K.Rai 

作者机构：Applied Physics DepartmentFaculty of Technology & Engineeringthe M S University of Baroda 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：2015年第39卷第12期

页      面：19-24页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：Supported by University Grants Commission,India for Major Research Project F.No.42-775/2013(SR)(J N Pandya) Dept.of Science and Technology,India,under SERC fast track scheme SR/FTP/PS-152/2012(A K Rai) 

主　　题：heavy quarkonia radiative decays electromagnetic transitions 

摘      要：The electromagnetic radiative transition widths for heavy quarkonia, as well as digamma and digluon decay widths, are computed in the framework of the extended harmonic confinement model （ERHM） and Coulomb plus power potential （CPP,） with varying potential index v. The outcome is compared with the values obtained from other theoretical models and experimental results. While the mass spectra, digamma and digluon widths from ERHM as well as CPP v=1 are in good agreement with experimental data, the electromagnetic transition widths span over a wide range for the potential models considered here making it difficult to prefer a particular model over the others because of the lack of experimental data for most transition widths.