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Gravitational wave emission from metastable current-carrying strings in $E_6$

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arxiv 2311.05564 v2 pith:PGX2H6ZE submitted 2023-11-09 hep-ph

Adeela Afzal , Qaisar Shafi , Amit Tiwari This is my paper · ORCID
classification hep-ph
keywords currentmetastablestringsgravitationalmodelspectrumwaveamount
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abstract

We discuss $E_6$ based extensions of the Standard Model (SM) containing two varieties of superheavy metastable cosmic strings (CSs) that respectively have neutral and electrically charged current carriers. We employ an extended version of the velocity-dependent one-scale (VOS) model, recently discussed by some authors, to estimate the gravitational wave (GW) spectrum emitted by metastable strings with a dimensionless string tension $G \mu \approx 10^{-6}$ that carry a right-handed neutrino (RHN) current. We find that with a low to moderate amount of current, the spectrum is compatible with the LIGO O3 run and also consistent at the 1$\sigma$ level with the recent PTA signals.

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Cited by 7 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Metastable cosmic strings are broken at the start

    hep-ph 2026-01 conditional novelty 7.0 of 10

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    hep-ph 2025-06 conditional novelty 7.0 of 10

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    hep-ph 2026-07 conditional novelty 4.0 of 10

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    hep-ph 2026-03 conditional novelty 4.0 of 10

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