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arXiv · 1305.4322

Light Dirac right-handed sneutrino dark matter

Ki-Young Choi·Osamu Seto
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Abstract

We show that mostly right-handed Dirac sneutrino is a viable supersymmetric light dark matter candidate. While the Dirac sneutrino scattering with nuclei is dominantly through the $Z$ boson exchange and is stringently constrained by the invisible decay width of $Z$ boson, it is possible to realize a large enough cross section with nucleon to account for possible signals observed at direct dark matter searches such as CDMS II-Si or CoGeNT. Even if the XENON100 limit is taken into account, a small part of signal region for CDMS II-Si events remains outside the excluded region by XENON100.

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Ki-Young Choi, Osamu Seto. 2013-05-19. Light Dirac right-handed sneutrino dark matter. https://doi.org/10.1103/physrevd.88.035005

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