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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2501.00131 |
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| _version_ | 1866929653689614336 |
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| author | Chakrabarty, Nabarun Chakraborty, Indrani Roy, Himadri |
| author_facet | Chakrabarty, Nabarun Chakraborty, Indrani Roy, Himadri |
| contents | It has been known that under-abundant dark matter density of an inert doublet can be replenished by an additional dark matter component, say, a fermion. We find that such a scenario can lead to the formation of stable Fermi-balls through coexisting minima of the finite temperature scalar potential. More importantly, we demonstrate that the Fermi-balls contribute sizeably to the dark matter relic density. In addition, the aforesaid coexisting minima open up the possibility of a first-order phase transition. This, in turn, triggers emission of gravitational waves that can be tested at the proposed BBO and U-DECIGO detectors. Therefore, the present study becomes a concrete setup to embed Fermi-balls in a realistic two-component dark matter model, and, to test the same using gravitational wave signatures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_00131 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Fermi-ball in a multicomponent dark matter framework and its gravitational wave signatures Chakrabarty, Nabarun Chakraborty, Indrani Roy, Himadri High Energy Physics - Phenomenology It has been known that under-abundant dark matter density of an inert doublet can be replenished by an additional dark matter component, say, a fermion. We find that such a scenario can lead to the formation of stable Fermi-balls through coexisting minima of the finite temperature scalar potential. More importantly, we demonstrate that the Fermi-balls contribute sizeably to the dark matter relic density. In addition, the aforesaid coexisting minima open up the possibility of a first-order phase transition. This, in turn, triggers emission of gravitational waves that can be tested at the proposed BBO and U-DECIGO detectors. Therefore, the present study becomes a concrete setup to embed Fermi-balls in a realistic two-component dark matter model, and, to test the same using gravitational wave signatures. |
| title | Fermi-ball in a multicomponent dark matter framework and its gravitational wave signatures |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2501.00131 |