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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| Format: | Article |
| Language: | English |
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Elsevier
2025-10-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325005908 |
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| author | João Gonçalves Danny Marfatia António P. Morais Roman Pasechnik |
| author_facet | João Gonçalves Danny Marfatia António P. Morais Roman Pasechnik |
| author_sort | João Gonçalves |
| collection | DOAJ |
| description | 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 | Article |
| id | doaj-art-5e6b5432ddc6491e939dcafc2c04fc65 |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-5e6b5432ddc6491e939dcafc2c04fc652025-08-26T04:14:08ZengElsevierPhysics Letters B0370-26932025-10-0186913982910.1016/j.physletb.2025.139829Supercooled phase transitions in conformal dark sectors explain NANOGrav dataJoão Gonçalves0Danny Marfatia1António P. Morais2Roman Pasechnik3Corresponding author.; Departamento de Física, Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications (CIDMA), Campus de Santiago, Aveiro, 3810-183, Portugal; Laboratório de Instrumentação e Física Experimental de Partículas (LIP), Universidade do Minho, Braga, 4710-057, PortugalDepartment of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, HI, 96822, USADepartamento de Física, Universidade de Aveiro and Centre for Research and Development in Mathematics and Applications (CIDMA), Campus de Santiago, Aveiro, 3810-183, Portugal; Laboratório de Instrumentação e Física Experimental de Partículas (LIP), Universidade do Minho, Braga, 4710-057, Portugal; Departamento de Física, Escola de Ciências, Universidade do Minho, Braga, 4710-057, PortugalDepartment of Physics, Lund University, Lund, 221 00, SwedenAccording 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.http://www.sciencedirect.com/science/article/pii/S0370269325005908Supoercooled phase transitionsNANOGravDark sectorsConformal models |
| spellingShingle | João Gonçalves Danny Marfatia António P. Morais Roman Pasechnik Supercooled phase transitions in conformal dark sectors explain NANOGrav data Physics Letters B Supoercooled phase transitions NANOGrav Dark sectors Conformal models |
| title | Supercooled phase transitions in conformal dark sectors explain NANOGrav data |
| title_full | Supercooled phase transitions in conformal dark sectors explain NANOGrav data |
| title_fullStr | Supercooled phase transitions in conformal dark sectors explain NANOGrav data |
| title_full_unstemmed | Supercooled phase transitions in conformal dark sectors explain NANOGrav data |
| title_short | Supercooled phase transitions in conformal dark sectors explain NANOGrav data |
| title_sort | supercooled phase transitions in conformal dark sectors explain nanograv data |
| topic | Supoercooled phase transitions NANOGrav Dark sectors Conformal models |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325005908 |
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