Constraint on the warped space from → X_s γ  

作　　者：陈建宾 冯太傅 高铁军 孙科盛 

机构地区：[1]Department of Physics, Dalian University of Technology

出　　处：《Chinese Physics C》2013年第6期18-25,共8页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(10975027)

摘　　要：We analyze the theoretical prediction on the branching ratio of B→Xsγ to order ∧^2EW/∧^2KK in extension of the standard model with a warped extra dimension and the custodial symmetry SU（3）c×SU（2）L×SU（2）R×U（1）××PLR, where AKK denotes the energy scale of low-lying Kaluze-Klein excitations and AEW denotes the electroweak energy scale. Contributions from the infinite series of Kaluze-Klein excitations are summed over through the residue theorem. The numerical result indicates that the present experimental data constrain the parameter space of the concerned model strongly.We analyze the theoretical prediction on the branching ratio of B→Xsγ to order ∧^2EW/∧^2KK in extension of the standard model with a warped extra dimension and the custodial symmetry SU（3）c×SU（2）L×SU（2）R×U（1）××PLR, where AKK denotes the energy scale of low-lying Kaluze-Klein excitations and AEW denotes the electroweak energy scale. Contributions from the infinite series of Kaluze-Klein excitations are summed over through the residue theorem. The numerical result indicates that the present experimental data constrain the parameter space of the concerned model strongly.

关 键 词：rare decay warped extra dimension Kaluza-Klein mode 

分 类 号：O572.2[理学—粒子物理与原子核物理]