Missing in Axion: where are XENON1T's big black holes?
High Energy Physics - Phenomenology
2020-07-02 v1 Cosmology and Nongalactic Astrophysics
Astrophysics of Galaxies
High Energy Astrophysical Phenomena
General Relativity and Quantum Cosmology
Abstract
We pioneer the black hole mass gap as a powerful new tool for constraining new particles. A new particle that couples to the Standard Model---such as an axion---acts as an additional source of loss in the cores of population-III stars, suppressing mass lost due to winds and quenching the pair-instability. This results in heavier astrophysical black holes. As an example, using stellar simulations we show that the solar axion explanation of the recent XENON1T excess implies astrophysical black holes of ~ 56 MS, squarely within the black hole mass gap predicted by the Standard Model.
Cite
@article{arxiv.2007.00650,
title = {Missing in Axion: where are XENON1T's big black holes?},
author = {Djuna Croon and Samuel D. McDermott and Jeremy Sakstein},
journal= {arXiv preprint arXiv:2007.00650},
year = {2020}
}
Comments
5 pages, 3 figures