Preprint

PUBDB-2020-03626

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png From NANOGrav to LIGO with metastable cosmic strings

Buchmuller, W.DESY* ; Domcke, V. (Corresponding author)DESY* ; Schmitz, K.DESY*

2020

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Please use a persistent id in citations: doi:10.3204/PUBDB-2020-03626

Report No.: CERN-TH-2020-157; DESY-20-154; arXiv:2009.10649

Abstract: 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.

Keyword(s): gravitational radiation: stochastic ; gravitational radiation: background ; magnetic monopole: mass ; cosmic string ; spontaneous symmetry breaking ; grand unified theory ; interferometer ; string tension ; leptogenesis ; dark matter ; B-L number ; inflation ; LIGO

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Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2020

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Database coverage:
; Published

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Journal Article Buchmuller, W.DESY* ; Domcke, V. (Corresponding author)DESY* ; Schmitz, K.
From NANOGrav to LIGO with metastable cosmic strings
Physics letters / B 811, 135914 (1-4) (2020) [10.1016/j.physletb.2020.135914]2020     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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