A Radiative Neutrino Mass Model with SIMP Dark Matter
- Creators
- Ho, Shu-Yu
- Toma, Takashi
- Tsumura, Koji
Abstract
We propose the first viable radiative seesaw model, in which the neutrino masses are induced radiatively via the two-loop Feynman diagram involving Strongly Interacting Massive Particles (SIMP). The stability of SIMP dark matter (DM) is ensured by a ℤ_5 discrete symmetry, through which the DM annihilation rate is dominated by the 3 → 2 self-annihilating processes. The right amount of thermal relic abundance can be obtained with perturbative couplings in the resonant SIMP scenario, while the astrophysical bounds inferred from the Bullet cluster and spherical halo shapes can be satisfied. We show that SIMP DM is able to maintain kinetic equilibrium with thermal plasma until the freeze-out temperature via the Yukawa interactions associated with neutrino mass generation.
Additional Information
© 2017 The Author(s). This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. Received: May 3, 2017; Revised: June 22, 2017; Accepted: July 9, 2017; Published: July 20, 2017. T.T. acknowledges support from JSPS Fellowships for Research Abroad. The work of K.T. is supported by JSPS Grant-in-Aid for Young Scientists (B) (Grants No. 16K17697), by the MEXT Grant-in-Aid for Scientific Research on Innovation Areas (Grants No. 16H00868), and by Kyoto University: Supporting Program for Interaction-based Initiative Team Studies (SPIRITS).Attached Files
Published - 10.1007_2FJHEP07_2017_101.pdf
Submitted - 1705.00592.pdf
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Additional details
- Eprint ID
- 79122
- Resolver ID
- CaltechAUTHORS:20170717-090311582
- 16K17697
- Japan Society for the Promotion of Science (JSPS)
- 16H00868
- Ministry of Education, Culture, Sports, Science and Technology (MEXT)
- Kyoto University
- SCOAP3
- Created
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2017-07-17Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field