Moduli-induced axion problem

Tetsutaro Higaki, Kazunori Nakayama, Fuminobu Takahashi

研究成果: Article査読

42 被引用数 (Scopus)

抄録

We point out that the cosmological moduli problem is not necessarily resolved even if the modulus mass is heavier than O(10) TeV, contrary to the common wisdom. The point is that, in many scenarios where the lightest moduli fields are stabilized by super symmetry breaking effects, those moduli fields tend to mainly decay into almost massless axions, whose abundance is tightly constrained by the recent Planck results. We study the moduli-induced axion problem in concrete examples, and discuss possible solutions. The problem and its solutions are widely applicable to decays of heavy scalar fields which dominate the energy density of the Universe, for instance, the reheating of the inflaton.

本文言語English
論文番号5
ジャーナルJournal of High Energy Physics
2013
7
DOI
出版ステータスPublished - 2013

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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