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Co-scattering in micrOMEGAs: A case study for the singlet-triplet dark matter modelстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Alguero Gael, Belanger Genevieve, Kraml Sabine, Pukhov Alexander
- Журнал: SciPost Physics
- Том: 13
- Номер: 6
- Год издания: 2022
- Издательство: SciPost Foundation
- Местоположение издательства: Netherlands
- Номер статьи: 124
- DOI: 10.21468/SciPostPhys.13.6.124
- Аннотация: In scenarios with very small dark matter (DM) couplings and small mass splittings between the DM and other dark sector particles, so-called “co-scattering” or “conversion-driven freeze-out” can be the dominant mechanism for DM production. We present the inclusion of this mechanism in micrOMEGAs together with a case study of the phenomenological implications in the fermionic singlet-triplet model. For the latter, we focus on the transition between co-annihilation and co-scattering processes. We observe that co-scattering is needed to describe the thermal behaviour of the DM for very small couplings, opening up a new region in the parameter space of the model. The triplet states are often long-lived in this region; we therefore also discuss LHC constraints from long-lived signatures obtained with SModelS.
- Добавил в систему: Пухов Александр Евгеньевич