Pseudo-Nambu-Goldstone dark matter from gauged U(1) B−L symmetry

Yoshihiko Abe, Takashi Toma, Koji Tsumura

研究成果: ジャーナルへの寄稿学術誌査読

18 被引用数 (Scopus)

抄録

A pseudo-Nambu-Goldstone boson (pNGB) is an attractive candidate for dark matter since the current severe limits of dark matter direct detection experiments are naturally evaded by its nature. We construct a model with pNGB dark matter based on a gauged U (1)B−L symmetry, where no adhoc global symmetry is assumed. The model keeps natural suppression mechanism for the dark matter direct detection cross section. On the other hand, the pNGB can decay through the new high scale suppressed operators. We show that the pNGB has long enough lifetime to be a dark matter in the wide range of the parameter space of the model. The thermal relic abundance of pNGB dark matter can be fit with the observed value against the constraints on the dark matter decays from the cosmic-ray observations.

本文言語英語
論文番号57
ジャーナルJournal of High Energy Physics
2020
5
DOI
出版ステータス出版済み - 5月 1 2020

!!!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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