Abelian-Higgs cosmic strings: effective action and particle radiation [CL]

http://arxiv.org/abs/2305.08155


We utilized the duality between massive vector and massive Kalb-Ramond fields to derive an effective action for Abelian-Higgs cosmic strings. This enabled us to determine the classically renormalized string tension and facilitate calculations for back-reaction effects. Additionally, we derived a comprehensive expression for the energy flux of radiation emitted by Abelian-Higgs cosmic strings. Applying this equation to a cuspless loop, we obtained that the loop lifetime is proportional to the square of the loop length, which is in agreement with field-theory simulations.

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I. Rybak
Tue, 16 May 23
77/83

Comments: 14 pages, 1 figure