The 3.5 keV X-ray line signal from decaying moduli with low cutoff scale

研究成果: Article査読

25 被引用数 (Scopus)

抄録

The recent unidentified 3.5 keV X-ray line signal can be explained by decaying moduli dark matter with a cutoff scale one order of magnitude smaller than the Planck scale. We show that such modulus field with the low cutoff scale follows a time-dependent potential minimum and its abundance is reduced by the adiabatic suppression mechanism. As a result the modulus abundance can naturally be consistent with the observed dark matter abundance without any fine-tuning of the initial oscillation amplitude.

本文言語English
ページ(範囲)338-339
ページ数2
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
735
DOI
出版ステータスPublished - 2014 7月 30

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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