Bosonic condensates in realistic supersymmetric GUT cosmic strings

Abstract

We study the realistic structure of F-term Nambu-Goto cosmic strings forming in a general supersymmetric Grand Unified Theory implementation, assuming standard hybrid inflation. Examining the symmetry breaking of the unification gauge group down to the Standard Model, we discuss the minimal field content necessary to describe abelian cosmic strings appearing at the end of inflation. We find that several fields will condense in most theories, questioning the plausible occurrence of associated currents (bosonic and fermionic). We perturbatively evaluate the modification of their energy per unit length due to the condensates. We provide a criterion for comparing the usual abelian Higgs approximation used in cosmology to realistic situations.

18 pages, 0 figures. Discussion clarified and simplified. Matches version published in JCAP

References in corpus (3)

• Fitting CMB data with cosmic strings and inflation
• Bosonic structure of realistic SO(10) SUSY cosmic strings
• Is F-term hybrid inflation natural within minimal supersymmetric SO(10)?

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