Z-Z' MIXING AND BOUNDS ON NEW NEUTRAL GAUGE BOSONS FROM SN-1987A DATA

被引:15
|
作者
RIZZO, TG
机构
[1] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011
[2] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011
来源
PHYSICAL REVIEW D | 1991年 / 44卷 / 01期
关键词
D O I
10.1103/PhysRevD.44.202
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Recently obtained bounds on the mass of the new neutral gauge bosons in E6 models using data from SN 1987A are reexamined and improved by the incorporation of Z-Z' mixing effects and radiative corrections. The sensitivity of these bounds to the various model parameters, e.g., the ratio of Higgs vacuum expectation values (tan-beta), is examined and, in some models, the value of tan-beta can change the resulting Z' mass bound by more than 400-600 GeV.
引用
收藏
页码:202 / 206
页数:5
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