A radiative neutrino mass model with SIMP dark matter

Shu Yu Ho, Takashi Toma, Koji Tsumura

研究成果: ジャーナルへの寄稿学術誌査読

23 被引用数 (Scopus)

抄録

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 ℤ5 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.

本文言語英語
論文番号101
ジャーナルJournal of High Energy Physics
2017
7
DOI
出版ステータス出版済み - 7月 1 2017
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 核物理学および高エネルギー物理学

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