Grand unification in high-scale supersymmetry

被引：47
|
作者：
Hisano, Junji [1 ,2 ]
Kuwahara, Takumi [1 ]
Nagata, Natsumi [1 ,3 ]
机构：
[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan
[2] Univ Tokyo, Todai Inst Adv Study, Kavli Inst Phys & Math Universe WPI, Kashiwa, Chiba 2778568, Japan
[3] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
来源：
PHYSICS LETTERS B | 2013年 / 723卷 / 4-5期
基金：
日本学术振兴会;
关键词：
NUCLEON-DECAY; PROTON-DECAY; MASS; ELECTROWEAK; SUPPRESSION; RATES;
D O I：
10.1016/j.physletb.2013.05.017
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A constraint on masses of superheavy gauge and Higgs multiplets at the grand unification (GUT) scale is obtained from the gauge coupling unification in the case of high-scale supersymmetry. We found that all of the particles may lie around a scale of 10(16) GeV so that the threshold corrections to the gauge coupling constants at the GUT scale are smaller than those in the case of the low-energy supersymmetry. In addition, the GUT scale tends to be slightly lower when the gauginos are heavier and, thus, the proton decay rate via the X-boson exchange process is expected to be enhanced. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：324 / 329
页数：6
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