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arXiv · 1109.2722

A light Scalar Dark Matter for CoGeNT and DAMA in D_6 Flavor Symmetric Model

Yuji Kajiyama·Hiroshi Okada·Takashi Toma
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Abstract

We try to interpret a very light dark matter with mass of 5~10 GeV which is in favor of the recent experiments reported by CoGeNT and DAMA, in a non-supersymmetric extension of radiative seesaw model with a family symmetry D_6 x Z_2 x Z_2. We show that a D_6 singlet real scalar field can be a promising dark matter candidate, and it gives the elastic cross section σ\simeq 7x10^{-41} cm^2 which is required by these experiments. Our dark matter interacts with a D_6 singlet scalar Higgs boson, which couples only to quark sector. The dark matter-nucleon cross section and new decay mode h->DM DM can be large if the standard model Higgs boson h is light. The Higgs phenomenology is also discussed.

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Yuji Kajiyama, Hiroshi Okada, Takashi Toma. 2011-09-13. A light Scalar Dark Matter for CoGeNT and DAMA in D_6 Flavor Symmetric Model. https://arxiv.org/abs/1109.2722

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