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

Andrew J. Long, Jeffrey M. Hyde, Tanmay Vachaspati

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


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.

Original languageEnglish (US)
Article number030
JournalJournal of Cosmology and Astroparticle Physics
Issue number9
StatePublished - Sep 1 2014


  • Cosmic strings
  • domain walls
  • monopoles
  • particle physics - cosmology connection

ASJC Scopus subject areas

  • Astronomy and Astrophysics


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