K-M参量的允许值范围和B_d-■_d系统△γ的符号  

THE SIGN OF Ay FOR THE B_d-■_d SYSTEM FROM PRESENTLY KNOWN VALUES OF THE K-M PARAMETERS

作　　者：吴丹迪[1] 

机构地区：[1]中国科学院高能物理研究所

出　　处：《高能物理与核物理》1989年第3期222-225,共4页High Energy Physics and Nuclear Physics

摘　　要：本文指出,在目前t夸克和KM矩阵参量允许的取值范围内,有可能出现基本上是CP偶的本征态B_(d+)比CP奇的本征态B_(d-)寿命短的情况.如果这个情况发生,许多B_(d-)■_d系统CP破坏效应将相应地改号.We point out that in certain region of t quark mass and KM parameters, the nearly CP even eigenstate B_(d+) can be longer lived than the nearly CP odd one B_(d-). If this happens, many CP violation effects should change their signs correspondingly.

关 键 词：K-M参量 取值范围 Bd-Bd系统 符号 

分 类 号：O572.2[理学—粒子物理与原子核物理]