Supercooled phase transitions in conformal dark sectors explain NANOGrav data
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916912571613184 |
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| author | Gonçalves, João Marfatia, Danny Morais, António P. Pasechnik, Roman |
| author_facet | Gonçalves, João Marfatia, Danny Morais, António P. Pasechnik, Roman |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_11619 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Supercooled phase transitions in conformal dark sectors explain NANOGrav data Gonçalves, João Marfatia, Danny Morais, António P. Pasechnik, Roman High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment 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. |
| title | Supercooled phase transitions in conformal dark sectors explain NANOGrav data |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2501.11619 |