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

Journal Article · Mon Sep 01 00:00:00 EDT 2014 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2014/09/030· OSTI ID:22375876

Long, Andrew J.; Hyde, Jeffrey M.; Vachaspati, Tanmay ^[1]

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1. Physics Department, Arizona State University, Tempe, Arizona 85287 (United States)

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.

• OSTI ID: 22375876
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2014, Issue 09; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

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