SYMMETRY NONRESTORATION AT HIGH-TEMPERATURE AND THE MONOPOLE PROBLEM

被引：82

作者：

DVALI, G

MELFO, A

SENJANOVIC, G

机构：

[1] IST NAZL FIS NUCL, SEZ PISA, I-56100 PISA, ITALY

[2] GEORGIAN ACAD SCI, INST PHYS, TBILISI 380077, GEORGIA

[3] SCH ADV INT STUDIES, I-34014 TRIESTE, ITALY

[4] UNIV LOS ANDES, CTR ASTROFIS TEOR, MERIDA 5101, VENEZUELA

[5] INT CTR THEORET PHYS, I-34100 TRIESTE, ITALY

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.75.4559

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that there exists a range of parameters in SU(5) theory for which the grand unified theory symmetry remains broken at high temperature, thus avoiding the phase transition that gives rise to the overproduction of monopoles. The thermal production of monopoles can be naturally suppressed, keeping their number density below the cosmological limits.

引用

页码：4559 / 4562

页数：4

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