A NEW SOURCE OF SINGLE PHOTONS FROM Z0 DECAY

被引：41
|
作者：
DICUS, DA
NANDI, S
WOODSIDE, J
机构：
[1] OKLAHOMA STATE UNIV,DEPT PHYS,STILLWATER,OK 74078
[2] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011
[3] IOWA STATE UNIV SCI & TECHNOL,PHYS LAB,AMES,IA 50011
来源：
PHYSICS LETTERS B | 1991年 / 258卷 / 1-2期
关键词：
D O I：
10.1016/0370-2693(91)91238-Q
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A new signal for supersymmetry in Z0 decay is a single photon with large p(T) plus nothing else, arising from the decay mode Z0 --> G-approximately-G-approximately-gamma, where G-approximately is a superlight gravitino. This decay mode is present in a non-minimal supergravity theory with a superlight gravitino, and is not present in the standard model or the usual minimal supergravity theory. For gravitino masses less than 10(-13) GeV, this signal is observable with a million Z0,s for a large region of the supersymmetry parameter space.
引用
收藏
页码：231 / 235
页数：5
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