Biondini, Simone; Laine, Mikko Sakari (2018). Thermal dark matter co-annihilating with a strongly interacting scalar. Journal of High Energy Physics, 2018(4) Springer 10.1007/JHEP04(2018)072
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Recently many investigations have considered Majorana dark matter co-annihilating with bound states formed by a strongly interacting scalar field. However only the gluon radiation contribution to bound state formation and dissociation, which at high temperatures is subleading to soft 2 → 2 scatterings, has been included. Making use of a non-relativistic effective theory framework and solving a plasma-modified Schrödinger equation, we address the effect of soft 2 → 2 scatterings as well as the thermal dissociation of bound states. We argue that the mass splitting between the Majorana and scalar field has in general both a lower and an upper bound, and that the dark matter mass scale can be pushed at least up to 5…6TeV.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Biondini, Simone, Laine, Mikko Sakari |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1029-8479 |
Publisher: |
Springer |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
14 May 2018 11:33 |
Last Modified: |
05 Dec 2022 15:13 |
Publisher DOI: |
10.1007/JHEP04(2018)072 |
ArXiv ID: |
1801.05821v2 |
BORIS DOI: |
10.7892/boris.116464 |
URI: |
https://boris.unibe.ch/id/eprint/116464 |
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