Probing Topcolor-Assisted Technicolor Models from Like-Sign Γ Pair Production in rγ Collisions  

作　　者：柳国丽 

机构地区：[1]Physics Department,Zhengzhou University [2]Kavli Institute for Theoretical Physics China,Academia Sinica

出　　处：《Communications in Theoretical Physics》2011年第5期852-856,共5页理论物理通讯（英文版）

摘　　要：We consider the contributions of the extra gauge boson Z＇ to the like sign ^- production processes e-＇γ→e＋（μ＋）τ-τ-, induced by the tree-level flavor changing interactions. Since these rare production are far below the observable level in the Standard Model and other popular new physics models such as the minimal supersymmetric model, we find that, in the topcolor-assisted technicolor models, the Z＇ can give significant contributions to these processes, and with reasonable values of the parameters, the cross section cr can reach several tens of tb and may be detected at the eγ collisions.

关 键 词：new gauge boson Z＇ lepton flavor violating processes photon-photon collision 

分 类 号：O572.2[理学—粒子物理与原子核物理]