Probing superheavy dark matter with gravitational waves

Abstract We study the superheavy dark matter (DM) scenario in an extended B−L model, where one generation of right-handed neutrino ν R is the DM candidate. If there is a new lighter sterile neutrino that co-annihilate with the DM candidate, then the annihilation rate is exponentially enhanced, allow...

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Bibliographic Details
Main Authors: Ligong Bian, Xuewen Liu, Ke-Pan Xie
Format: Article
Language:English
Published: SpringerOpen 2021-11-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP11(2021)175