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Title: Cosmic strings in hidden sectors: 1. Radiation of standard model particles

In hidden sector models with an extra U(1) gauge group, new fields can interact with the Standard Model only through gauge kinetic mixing and the Higgs portal. After the U(1) is spontaneously broken, these interactions couple the resultant cosmic strings to Standard Model particles. We calculate the spectrum of radiation emitted by these ''dark strings'' in the form of Higgs bosons, Z bosons, and Standard Model fermions assuming that string tension is above the TeV scale. We also calculate the scattering cross sections of Standard Model fermions on dark strings due to the Aharonov-Bohm interaction. These radiation and scattering calculations will be applied in a subsequent paper to study the cosmological evolution and observational signatures of dark strings.
Authors:
; ;  [1]
  1. Physics Department, Arizona State University, Tempe, Arizona 85287 (United States)
Publication Date:
OSTI Identifier:
22375876
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2014; Journal Issue: 09; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AHARONOV-BOHM EFFECT; CROSS SECTIONS; FERMIONS; HIGGS BOSONS; HIGGS MODEL; INTERACTIONS; SCATTERING; STANDARD MODEL; TEV RANGE; Z NEUTRAL BOSONS