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From NANOGrav to LIGO with metastable cosmic strings
We interpret the recent NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings. The observed amplitude of a stochastic signal can be translated into a range for the cosmic string tension and the mass of magnetic monopoles arising in theories of grand u...
Autores principales: | , , |
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Lenguaje: | eng |
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2020
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Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2020.135914 http://cds.cern.ch/record/2732057 |
_version_ | 1780966708318568448 |
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author | Buchmuller, Wilfried Domcke, Valerie Schmitz, Kai |
author_facet | Buchmuller, Wilfried Domcke, Valerie Schmitz, Kai |
author_sort | Buchmuller, Wilfried |
collection | CERN |
description | We interpret the recent NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings. The observed amplitude of a stochastic signal can be translated into a range for the cosmic string tension and the mass of magnetic monopoles arising in theories of grand unification. In a sizable part of the parameter space, this interpretation predicts a large stochastic gravitational wave signal in the frequency band of ground-based interferometers, which can be probed in the very near future. We confront these results with predictions from successful inflation, leptogenesis and dark matter from the spontaneous breaking of a gauged B − L symmetry. |
id | cern-2732057 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
record_format | invenio |
spelling | cern-27320572023-10-04T06:40:09Zdoi:10.1016/j.physletb.2020.135914http://cds.cern.ch/record/2732057engBuchmuller, WilfriedDomcke, ValerieSchmitz, KaiFrom NANOGrav to LIGO with metastable cosmic stringshep-phParticle Physics - Phenomenologyastro-ph.COAstrophysics and AstronomyWe interpret the recent NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings. The observed amplitude of a stochastic signal can be translated into a range for the cosmic string tension and the mass of magnetic monopoles arising in theories of grand unification. In a sizable part of the parameter space, this interpretation predicts a large stochastic gravitational wave signal in the frequency band of ground-based interferometers, which can be probed in the very near future. We confront these results with predictions from successful inflation, leptogenesis and dark matter from the spontaneous breaking of a gauged B − L symmetry.We interpret the recent NANOGrav results in terms of a stochastic gravitational wave background from metastable cosmic strings. The observed amplitude of a stochastic signal can be translated into a range for the cosmic string tension and the mass of magnetic monopoles arising in theories of grand unification. In a sizable part of the parameter space, this interpretation predicts a large stochastic gravitational wave signal in the frequency band of ground-based interferometers, which can be probed in the very near future. We confront these results with predictions from successful inflation, leptogenesis and dark matter from the spontaneous breaking of a gauged B-L symmetry.arXiv:2009.10649CERN-TH-2020-157DESY 20-154DESY-20-154oai:cds.cern.ch:27320572020-09-22 |
spellingShingle | hep-ph Particle Physics - Phenomenology astro-ph.CO Astrophysics and Astronomy Buchmuller, Wilfried Domcke, Valerie Schmitz, Kai From NANOGrav to LIGO with metastable cosmic strings |
title | From NANOGrav to LIGO with metastable cosmic strings |
title_full | From NANOGrav to LIGO with metastable cosmic strings |
title_fullStr | From NANOGrav to LIGO with metastable cosmic strings |
title_full_unstemmed | From NANOGrav to LIGO with metastable cosmic strings |
title_short | From NANOGrav to LIGO with metastable cosmic strings |
title_sort | from nanograv to ligo with metastable cosmic strings |
topic | hep-ph Particle Physics - Phenomenology astro-ph.CO Astrophysics and Astronomy |
url | https://dx.doi.org/10.1016/j.physletb.2020.135914 http://cds.cern.ch/record/2732057 |
work_keys_str_mv | AT buchmullerwilfried fromnanogravtoligowithmetastablecosmicstrings AT domckevalerie fromnanogravtoligowithmetastablecosmicstrings AT schmitzkai fromnanogravtoligowithmetastablecosmicstrings |