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roman pasechnik

Roman Pasechnik

Senior lecturer

roman pasechnik

Supercooled phase transitions in conformal dark sectors explain NANOGrav data

Author

  • João Gonçalves
  • Danny Marfatia
  • António P. Morais
  • Roman Pasechnik

Summary, in English

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 explain the nHz signal at NANOGrav.

Department/s

  • Particle and nuclear physics
  • Computational Chemistry

Publishing year

2025-10

Language

English

Publication/Series

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

869

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Keywords

  • Conformal models
  • Dark sectors
  • NANOGrav
  • Supoercooled phase transitions

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693