Production of purely gravitational dark matter: the case of fermion and vector boson

Abstract We consider the simplest possibility for a model of particle dark matter in which dark matter has only gravitational interaction with the standard model sector. Even in such a case, it is known that the gravitational particle production in an expanding universe may lead to a correct relic a...

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Bibliographic Details
Main Authors: Yohei Ema, Kazunori Nakayama, Yong Tang
Format: Article
Language:English
Published: SpringerOpen 2019-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2019)060