DAMA annual modulation is not due to electron recoils from Plasma/Mirror Dark Matter with Kinetic Mixing
High Energy Physics - Phenomenology
2021-10-27 v1
Abstract
If dark matter is composed of new fundamental particles, Earth's orbital motion around the Sun may induce an annual modulation in the rate at which these particles interact in a terrestrial detector. The DAMA collaboration has identified at a 12 confidence level such an annual modulation in their event rate. One previously proposed explanation is `plasma dark matter' (e.g. mirror dark matter) which would have electron recoils in the detector from interactions via kinetic mixing. We perform a chi-squared goodness of fit test of this plasma dark matter model to DAMA/LIBRA modulation amplitude which rejects the hypothesis of plasma dark matter as an explanation of this data at greater than 7.
Keywords
Cite
@article{arxiv.2011.03079,
title = {DAMA annual modulation is not due to electron recoils from Plasma/Mirror Dark Matter with Kinetic Mixing},
author = {Douglas Q. Adams and Sunniva Jacobsen and Chris Kelso},
journal= {arXiv preprint arXiv:2011.03079},
year = {2021}
}