Open AccessMaximally misaligned axions
Author(s) -
Mario Reig
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2156/1/012012
Subject(s) - axion , physics , particle physics , phenomenology (philosophy) , dark matter , statistical physics , philosophy , epistemology
I discuss a simple model of maximal axion misalignment. Maximally-misaligned axions with m a > 10 −22 eV are compelling DM candidates with a rich and interesting phenomenology. On the other hand, maximally-misaligned axions lighter than m ∼ O (100) H 0 may behave as dark energy with decay constants substantially smaller than the Planck scale, avoiding consistency problems associated to trans-Planckian scales.