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arXiv · 0807.3029

Right-handed sneutrino as thermal dark matter

D. G. Cerdeno·C. Munoz·O. Seto
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Abstract

We study an extension of the MSSM with a singlet S with coupling SH1H2 in order to solve the mu problem as in the NMSSM, and right-handed neutrinos 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 can not only be thermal relic dark matter but also have a large enough scattering cross section with nuclei to detect it directly in near future, in contrast with most of other right-handed sneutrino dark matter models.

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D. G. Cerdeno, C. Munoz, O. Seto. 2008-12-18. Right-handed sneutrino as thermal dark matter. https://doi.org/10.1103/physrevd.79.023510

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