Right-handed sneutrino as thermal dark matter
Journal Article
·
· Physical Review. D, Particles Fields
- Departamento de Fisica Teorica C-XI, Universidad Autonoma de Madrid, Cantoblanco, E-28049, Madrid (Spain)
- Instituto de Fisica Teorica UAM-CSIC, Universidad Autonoma de Madrid, Cantoblanco, E-28049, Madrid (Spain)
We study an extension of the minimal supersymmetric standard model with a singlet supermultiplet S with coupling SH{sub 1}H{sub 2} in order to solve the {mu} problem as in the next-to-minimal supersymmetric standard model, and right-handed neutrino supermultiplets N with couplings SNN in order to generate dynamically electroweak-scale Majorana masses. We show how in this model a purely right-handed sneutrino can be a viable candidate for cold dark matter in the Universe. Through the direct coupling to the singlet, the sneutrino cannot only be thermal relic dark matter but also have a large enough scattering cross section with nuclei to detect it directly in the near future, in contrast with most other right-handed sneutrino dark matter models.
- OSTI ID:
- 21259783
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 2 Vol. 79; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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