What if ALP dark matter for the XENON1T excess is the inflaton

Abstract The recent XENON1T excess in the electron recoil data can be explained by anomaly-free axion-like particle (ALP) dark matter with mass m ϕ = 2.3 ± 0.2 keV and the decay constant f ϕ / q e ≃ 2 × 10 10 Ω ϕ / Ω DM $$ {f}_{\phi }/{q}_e\simeq 2\times {10}^{10}\sqrt{\Omega_{\phi }/{\Omega}_{\math...

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Bibliographic Details
Main Authors: Fuminobu Takahashi, Masaki Yamada, Wen Yin
Format: Article
Language:English
Published: SpringerOpen 2021-01-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP01(2021)152