CERN Accelerating science

Article
Report number	hep-ph/9803438 ; IJS-TP-98-4 ; IC-98-33 ; CERN-TH-98-3 ; CERN-TH-98-003 ; IC-98-33 ; IJS-TP-98-04 ; CERN-TH-98-003
Title	R-charge Kills Monopoles
Other title	R-charge and a solution to the monopole problem
Author(s)	Bajc, Borut (ICTP, Trieste ; Stefan Inst., Ljubljana) ; Riotto, Antonio (CERN) ; Senjanovic, Goran (ICTP, Trieste)
Affiliation	(CERN) ; (J Stefan Inst. Ljubljana) ; (ICTP Trieste)
Publication	1998
Imprint	25 Mar 1998
Number of pages	10
In:	Mod. Phys. Lett. A 13 (1998) 2955-2964
DOI	10.1142/S0217732398003132
Subject category	Particle Physics - Phenomenology
Abstract	Large charge density, unlike high temperature, may lead to nonrestoration of global and gauge symmetries. Supersymmetric GUTs with the appealing scenario of unification scale being generated dynamically naturally contain global continuous $R$ symmetries. We point out that the presence of a large $R$ charge in the early Universe can lead to GUT symmetry nonrestoration. This provides a simple way out of the monopole problem.

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