New physical effects on the decay B_s→γγ in the technicolor model  

作　　者：秦秀梅 霍武军 杨晓芳 

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

出　　处：《Chinese Physics C》2009年第4期252-255,共4页中国物理C（英文版）

摘　　要：In this paper we calculate the contributions to the branching ratio of Bs →γγ from charged pseudo-Goldstone bosons appearing in the one generation Technicolor model. We find that the theoretical value of the branching ratio, BR（Bs →γγ）, including the contributions of PGBs, P^± and P8^±, is very different from the standard model （SM） prediction. The new physical effects can provide a one to two order of magnitude enhancement of the SM results. It is shown that the decay Bs →γγ can test new physical signals from the technicolor model.In this paper we calculate the contributions to the branching ratio of Bs →γγ from charged pseudo-Goldstone bosons appearing in the one generation Technicolor model. We find that the theoretical value of the branching ratio, BR（Bs →γγ）, including the contributions of PGBs, P^± and P8^±, is very different from the standard model （SM） prediction. The new physical effects can provide a one to two order of magnitude enhancement of the SM results. It is shown that the decay Bs →γγ can test new physical signals from the technicolor model.

关 键 词：TCM charged PGBs BS 

分 类 号：O571.3[理学—粒子物理与原子核物理]