LIGHT SCALAR TOP SQUARK IN THE MINIMAL SUPERSYMMETRIC GRAND UNIFIED THEORY

被引：11

作者：

FUKUGITA, M

MURAYAMA, H

YAMAGUCHI, M

YANAGIDA, T

机构：

[1] TOHOKU UNIV,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

[2] INST ADV STUDY,PRINCETON,NJ 08540

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.72.3009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We point out that a light scalar top squark with mass as small as m(i) almost-equal-to 20 GeV is still an allowed possibility within the standard, minimal supersymmetric grand unified theory, if the photino exists at mass slightly below the scalar top mass, so that coannihilation efficiently takes place for gammagamma --> gg in the early Universe. We show that this case, receiving a number of strong phenomenological constraints, leads to a restricted pattern of the mass spectrum of other supersymmetric particles.

引用

页码：3009 / 3012

页数：4

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