CP VIOLATION IN Ks → 3π  

作　　者：T. Nakada L. Wolfenstein 

机构地区：[1]Paul Scherrer Institute [2]Carnegie-Mellon University

出　　处：《Chinese Physics C》2016年第10期709-710,共2页中国物理C（英文版）

摘　　要：The possible final states for the decay K^0→ π＋π-π^0 have isospinI = 0, 1, 2, and 3. TheI= 0 andI= 2states have CP = ＋1 and Ks can decay into them without violating CP symmetry, but they are expected to be strongly suppressed by centrifugal barrier effects. The I = 1 and I = 3 states, which have no centrifugal barrier, have CP = -1 so that the Ks decay to these requires CP violation.The possible final states for the decay K^0→ π＋π-π^0 have isospinI = 0, 1, 2, and 3. TheI= 0 andI= 2states have CP = ＋1 and Ks can decay into them without violating CP symmetry, but they are expected to be strongly suppressed by centrifugal barrier effects. The I = 1 and I = 3 states, which have no centrifugal barrier, have CP = -1 so that the Ks decay to these requires CP violation.

关 键 词：CP破坏 Π 对称性 衰变 状态 势垒 离心 

分 类 号：O572.33[理学—粒子物理与原子核物理] O156.1[理学—物理]