Supercooled phase transitions in conformal dark sectors explain NANOGrav data

According to recent lore, it is difficult to explain the evidence for a stochastic gravitational wave background obtained by pulsar timing arrays with supercooled first-order phase transitions (FOPTs). We demonstrate that supercooled FOPTs in dark U(1)′ models with a conformal dark sector easily exp...

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Bibliographic Details
Main Authors: João Gonçalves, Danny Marfatia, António P. Morais, Roman Pasechnik
Format: Article
Language:English
Published: Elsevier 2025-10-01
Series:Physics Letters B
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Online Access:http://www.sciencedirect.com/science/article/pii/S0370269325005908
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