Thermal squeezeout of dark matter
We carry out a detailed study of the confinement phase transition in a dark sector with a $SU(N)$ gauge group and a single generation of dark heavy quark. We focus on heavy enough quarks such that their abundance freezes out before the phase transition and the phase transition is of first-order....
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society (APS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/142224 |
| _version_ | 1826206911612059648 |
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| author | Asadi, Pouya Kramer, Eric David Kuflik, Eric Ridgway, Gregory W Slatyer, Tracy R Smirnov, Juri |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Asadi, Pouya Kramer, Eric David Kuflik, Eric Ridgway, Gregory W Slatyer, Tracy R Smirnov, Juri |
| author_sort | Asadi, Pouya |
| collection | MIT |
| description | We carry out a detailed study of the confinement phase transition in a dark
sector with a $SU(N)$ gauge group and a single generation of dark heavy quark.
We focus on heavy enough quarks such that their abundance freezes out before
the phase transition and the phase transition is of first-order. We find that
during this phase transition the quarks are trapped inside contracting pockets
of the deconfined phase and are compressed enough to interact at a significant
rate, giving rise to a second stage of annihilation that can dramatically
change the resulting dark matter abundance. As a result, the dark matter can be
heavier than the often-quoted unitarity bound of $\sim100~$TeV. Our findings
are almost completely independent of the details of the portal between the dark
sector and the Standard Model. We comment briefly on possible signals of such a
sector. Our main findings are summarized in a companion letter, while here we
provide further details on different parts of the calculation. |
| first_indexed | 2024-09-23T13:40:30Z |
| format | Article |
| id | mit-1721.1/142224 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:40:30Z |
| publishDate | 2022 |
| publisher | American Physical Society (APS) |
| record_format | dspace |
| spelling | mit-1721.1/1422242023-12-07T14:37:52Z Thermal squeezeout of dark matter Asadi, Pouya Kramer, Eric David Kuflik, Eric Ridgway, Gregory W Slatyer, Tracy R Smirnov, Juri Massachusetts Institute of Technology. Center for Theoretical Physics We carry out a detailed study of the confinement phase transition in a dark sector with a $SU(N)$ gauge group and a single generation of dark heavy quark. We focus on heavy enough quarks such that their abundance freezes out before the phase transition and the phase transition is of first-order. We find that during this phase transition the quarks are trapped inside contracting pockets of the deconfined phase and are compressed enough to interact at a significant rate, giving rise to a second stage of annihilation that can dramatically change the resulting dark matter abundance. As a result, the dark matter can be heavier than the often-quoted unitarity bound of $\sim100~$TeV. Our findings are almost completely independent of the details of the portal between the dark sector and the Standard Model. We comment briefly on possible signals of such a sector. Our main findings are summarized in a companion letter, while here we provide further details on different parts of the calculation. 2022-05-02T13:56:07Z 2022-05-02T13:56:07Z 2021 2022-05-02T13:04:35Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142224 Asadi, Pouya, Kramer, Eric David, Kuflik, Eric, Ridgway, Gregory W, Slatyer, Tracy R et al. 2021. "Thermal squeezeout of dark matter." Physical Review D, 104 (9). en 10.1103/PHYSREVD.104.095013 Physical Review D Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0 application/pdf American Physical Society (APS) APS |
| spellingShingle | Asadi, Pouya Kramer, Eric David Kuflik, Eric Ridgway, Gregory W Slatyer, Tracy R Smirnov, Juri Thermal squeezeout of dark matter |
| title | Thermal squeezeout of dark matter |
| title_full | Thermal squeezeout of dark matter |
| title_fullStr | Thermal squeezeout of dark matter |
| title_full_unstemmed | Thermal squeezeout of dark matter |
| title_short | Thermal squeezeout of dark matter |
| title_sort | thermal squeezeout of dark matter |
| url | https://hdl.handle.net/1721.1/142224 |
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