Scientific article
OA Policy
English

Asymmetric Higgsino Dark Matter

Published inPhysical review letters, vol. 109, no. 5
Publication date2012
Abstract

In the supersymmetric framework, prior to the electroweak phase transition, the existence of a baryon asymmetry implies the existence of a Higgsino asymmetry. We investigate whether the Higgsino could be a viable asymmetric dark matter candidate. We find that this is indeed possible. Thus, supersymmetry can provide the observed dark matter abundance and, furthermore, relate it with the baryon asymmetry, in which case the puzzle of why the baryonic and dark matter mass densities are similar would be explained. To accomplish this task, two conditions are required. First, the gauginos, squarks, and sleptons must all be very heavy, such that the only electroweak-scale superpartners are the Higgsinos. With this spectrum, supersymmetry does not solve the fine-tuning problem. Second, the temperature of the electroweak phase transition must be low, in the (1–10) GeV range. This condition requires an extension of the minimal supersymmetric standard model.

Citation (ISO format)
BLUM, Kfir et al. Asymmetric Higgsino Dark Matter. In: Physical review letters, 2012, vol. 109, n° 5. doi: 10.1103/PhysRevLett.109.051302
Main files (1)
Article (Published version)
accessLevelPublic
Identifiers
Journal ISSN0031-9007
597views
377downloads

Technical informations

Creation12/05/2014 12:40:00
First validation12/05/2014 12:40:00
Update14/03/2023 21:12:55
Status update14/03/2023 21:12:55
Last indexation30/10/2024 17:11:28
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack