TOP-QUARK-MASS PREDICTION FROM SUPERSYMMETRIC GRAND UNIFIED THEORIES

被引：243
|
作者：
ANANTHANARAYAN, B [1 ]
LAZARIDES, G [1 ]
SHAFI, Q [1 ]
机构：
[1] CERN,THEORY GRP,CH-1211 GENEVA,SWITZERLAND
来源：
PHYSICAL REVIEW D | 1991年 / 44卷 / 05期
关键词：
D O I：
10.1103/PhysRevD.44.1613
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider a supersymmetric grand-unified-theory (GUT) framework motivated by SO(10) or E6 unification in which the parameter tan-beta(= upsilon-2/upsilon-1) of the minimal supersymmetric standard model is con-strained by the condition that the Yukawa couplings h(t),h(b), and h-tau are all equal at the GUT scale. With alpha-s (M(Z)) = 0. 106 +/- 0.006, the estimate for the b-quark mass, which depends on tan-beta, lies in the "observed" range m(b)(m(b)) = 4.25 +/- 0.10 GeV, provided that the top-quark mass is 142(-49)+26 GeV.
引用
收藏
页码：1613 / 1615
页数：3
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