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Gravitational wave probes of massive gauge bosons at the cosmological collider
- Source :
- Journal of Cosmology and Astroparticle Physics. 2023:013
- Publication Year :
- 2023
- Publisher :
- IOP Publishing, 2023.
-
Abstract
- We extend the reach of the ``cosmological collider'' for massive gauge boson production during inflation from the CMB scales to the interferometer scales. Considering a Chern-Simons coupling between the gauge bosons and the pseudoscalar inflaton, one of the transverse gauge modes is efficiently produced and its inverse decay leaves an imprint in the primordial scalar and tensor perturbations. We study the correlation functions of these perturbations and derive the updated constraints on the parameter space from CMB observables. We then extrapolate the tensor power spectrum to smaller scales consistently taking into account the impact of the gauge field on inflationary dynamics. Our results show that the presence of massive gauge fields during inflation can be detected from characteristic gravitational wave signals encompassing the whole range of current and planned interferometers.<br />Comment: 35 pages, 7 figures, references added, minor modification in gravitational wave sensitivity plots
- Subjects :
- High Energy Physics - Theory
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Cosmology and Nongalactic Astrophysics (astro-ph.CO)
High Energy Physics - Theory (hep-th)
FOS: Physical sciences
Astronomy and Astrophysics
Astrophysics - Cosmology and Nongalactic Astrophysics
Subjects
Details
- ISSN :
- 14757516
- Volume :
- 2023
- Database :
- OpenAIRE
- Journal :
- Journal of Cosmology and Astroparticle Physics
- Accession number :
- edsair.doi.dedup.....64d801b8d095c0079f411aafd29a4bf8