ANALYSIS OF K-L-]GAMMA-NU(NU)OVER-BAR

被引：5
|
作者：
RICHARDSON, S
PICCIOTTO, C
机构：
来源：
PHYSICAL REVIEW D | 1995年 / 52卷 / 11期
关键词：
D O I：
10.1103/PhysRevD.52.6342
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The decay K-L --> gamma nu nu is analyzed within the standard model. Short-distance contributions are found to dominate, yielding a branching ratio of similar to 0.7 x 10(-11). We examine the possibility that nonstandard model effects might be observed at higher rates. As an example, we calculate the branching ratio for the process mediated by neutral horizontal gauge bosons. Notwithstanding some model uncertainties, experimental limits for lepton number violation constrain these contributions to less than or similar to 2 x 10(-11).
引用
收藏
页码：6342 / 6348
页数：7
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