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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.07586 |
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| _version_ | 1866912372667449344 |
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| author | Banerjee, Indra Kumar Dey, Ujjal Kumar Khalil, Shaaban |
| author_facet | Banerjee, Indra Kumar Dey, Ujjal Kumar Khalil, Shaaban |
| contents | We investigate the phenomenology of a Standard Model extension incorporating an inert scalar doublet and a gauged $U(1)_{B-L}$ symmetry. Our analysis reveals regions of the parameter space that support strong first-order phase transitions, including cases featuring two successive transitions. Each transition can generate a stochastic gravitational wave background within the sensitivity reach of upcoming experiments. Remarkably, the high-scale transition may also produce primordial black holes with appreciable abundance. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_07586 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Primordial Black Holes and Gravitational Waves in Extensions of the Standard Model Banerjee, Indra Kumar Dey, Ujjal Kumar Khalil, Shaaban High Energy Physics - Phenomenology We investigate the phenomenology of a Standard Model extension incorporating an inert scalar doublet and a gauged $U(1)_{B-L}$ symmetry. Our analysis reveals regions of the parameter space that support strong first-order phase transitions, including cases featuring two successive transitions. Each transition can generate a stochastic gravitational wave background within the sensitivity reach of upcoming experiments. Remarkably, the high-scale transition may also produce primordial black holes with appreciable abundance. |
| title | Primordial Black Holes and Gravitational Waves in Extensions of the Standard Model |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2505.07586 |