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NANOGrav results and Dark First Order Phase Transitions

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arxiv 2009.10327 v2 pith:RFWEVKHO submitted 2020-09-22 hep-ph gr-qc

Andrea Addazi , Yi-Fu Cai , Qingyu Gan , Antonino Marciano , Kaiqiang Zeng This is my paper · ORCID
classification hep-phgr-qc
keywords darkfirstfoptsmatternanogravorderphasetransitions
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The recent NANOGrav evidence of a common-source stochastic background provides a hint to Gravitational Waves (GW) radiation from the Early Universe. We show that this result can be interpreted as a GW spectrum produced from First Order Phase Transitions (FOPTs) around a temperature in the KeV-MeV window. Such a class of FOPTs at temperatures much below the electroweak scale can be naturally envisaged in several Warm Dark Matter models such as Majoron Dark Matter.

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Cited by 2 Pith papers

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

  1. Beyond the Daisy Chain: Running and the 3D EFT View of Supercooled Phase Transitions

    hep-ph 2025-11 conditional novelty 5.0 of 10

    With renormalisation-group running included, the one-loop high-temperature Daisy-resummed potential at µ=πT reproduces the phase-transition parameters of the two-loop dimensionally reduced EFT, while the no-running on...

  2. Can a secluded self-interacting dark sector generate detectable gravitational waves?

    hep-ph 2025-02 conditional novelty 4.0 of 10

    In a secluded self-interacting dark sector with a dark U(1)' and dark radiation, existing Neff and Lyman-alpha limits remove nearly all gravitational-wave-detectable parameter space; one charge assignment keeps a smal...

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