Type-I two-Higgs-doublet model and gravitational waves from domain walls bounded by strings

A bstract The spontaneous breaking of a U(1) symmetry via an intermediate discrete symmetry may yield a hybrid topological defect of domain walls bounded by cosmic strings . The decay of this defect network leads to a unique gravitational wave signal spanning many orders in observable frequencies, t...

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Bibliographic Details
Published inThe journal of high energy physics Vol. 2024; no. 8; pp. 237 - 25
Main Authors Fu, Bowen, Ghoshal, Anish, King, Stephen F., Rahat, Moinul Hossain
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 30.08.2024
Springer Nature B.V
SpringerOpen
Subjects
Classical and Quantum Gravitation
Cosmology of Theories BSM
Defects
Domain walls
Early Universe Particle Physics
Elementary Particles
Flavors
Frequency ranges
Gravitational waves
Lie groups
Multi-Higgs Models
Neutral currents
Neutrinos
Phase transitions
Phase Transitions in the Early Universe
Physics
Physics and Astronomy
Quantum Field Theories
Quantum Field Theory
Quantum Physics
Quarks
Regular Article - Theoretical Physics
Relativity Theory
String Theory
Strings
Symmetry
Wave spectra
Cosmology of Theories BSM
Multi-Higgs Models
Early Universe Particle Physics
Phase Transitions in the Early Universe
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Summary:A bstract The spontaneous breaking of a U(1) symmetry via an intermediate discrete symmetry may yield a hybrid topological defect of domain walls bounded by cosmic strings . The decay of this defect network leads to a unique gravitational wave signal spanning many orders in observable frequencies, that can be distinguished from signals generated by other sources. We investigate the production of gravitational waves from this mechanism in the context of the type-I two-Higgs-doublet model extended by a U(1) R symmetry, that simultaneously accommodates the seesaw mechanism, anomaly cancellation, and eliminates flavour-changing neutral currents. The gravitational wave spectrum produced by the string-bounded-wall network can be detected for U(1) R breaking scale from 10 12 to 10 15 GeV in forthcoming interferometers including LISA and Einstein Telescope, with a distinctive f 3 slope and inflexion in the frequency range between microhertz and hertz.
ISSN:1029-8479
1029-8479
DOI:10.1007/JHEP08(2024)237