TY  - JOUR
AU  - Bas i Beneito, A.
AU  - Herrero-Garcia, J.
AU  - Vatsyayan, D.
PY  - 2022
DA  - 2022//
TI  - Multi-component dark sectors: symmetries, asymmetries and conversions
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 075
EP  - 31pp
VL  - 10
IS  - 10
PB  - Springer
KW  - Models for Dark Matter
KW  - Particle Nature of Dark Matter
AB  - We study the relic abundance of several stable particles from a generic dark sector, including the possible presence of dark asymmetries. After discussing the different possibilities for stabilising multi-component dark matter, we analyse the final relic abundance of the symmetric and asymmetric dark matter components, paying special attention to the role of the unavoidable conversions between dark matter states. We find an exponential dependence of the asymmetries of the heavier components on annihilations and conversions. We conclude that having similar symmetric and asymmetric components is a natural outcome in many scenarios of multi-component dark matter. This has novel phenomenological implications, which we briefly discuss.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2207.02874
UR  - https://doi.org/10.1007/JHEP10(2022)075
DO  - 10.1007/JHEP10(2022)075
LA  - English
N1  - WOS:000866484800002
ID  - BasiBeneito_etal2022
ER  -