Inverse Seesaw and Portal Dark Matter. (arXiv:1905.13224v2 [hep-ph] UPDATED)
<a href="http://arxiv.org/find/hep-ph/1/au:+Pongkitivanichkul_C/0/1/0/all/0/1">Chakrit Pongkitivanichkul</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Thongyoi_N/0/1/0/all/0/1">Nakorn Thongyoi</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Uttayarat_P/0/1/0/all/0/1">Patipan Uttayarat</a>
We study the phenomenology of the inverse seesaw mechanism in the
scalar-Higgs portal dark matter model. The model is an extension of the
Standard Model including two additional neutrinos, a singlet scalar and a
fermionic dark matter. We consider the inverse seesaw mechanism where the mass
of 2 additional neutrinos are made dynamic by the singlet scalar. We found that
the natural scale for the scalar vacuum expectation value is naturally close to
the weak scale. Motivating by this fact, we focus on the possibility of the
singlet scalar connecting with dark matter, i.e., the scalar is also the
mediator between dark sector and the Standard Model. We perform a numerical
analysis over the parameter space subject to the indirect and direct detection
constraints. The feasible region of the parameter space will be discussed.
We study the phenomenology of the inverse seesaw mechanism in the
scalar-Higgs portal dark matter model. The model is an extension of the
Standard Model including two additional neutrinos, a singlet scalar and a
fermionic dark matter. We consider the inverse seesaw mechanism where the mass
of 2 additional neutrinos are made dynamic by the singlet scalar. We found that
the natural scale for the scalar vacuum expectation value is naturally close to
the weak scale. Motivating by this fact, we focus on the possibility of the
singlet scalar connecting with dark matter, i.e., the scalar is also the
mediator between dark sector and the Standard Model. We perform a numerical
analysis over the parameter space subject to the indirect and direct detection
constraints. The feasible region of the parameter space will be discussed.
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