Symmetry Nonrestoration at High Temperature and the Monopole Problem
Open Access
- 18 December 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (25) , 4559-4562
- https://doi.org/10.1103/physrevlett.75.4559
Abstract
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.Keywords
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