Shedding Light on Dark Matter: A Faraday Rotation Experiment to Limit a Dark Magnetic Moment
arXiv:0811.0967 · doi:10.1103/PhysRevD.79.055007
Abstract
A Faraday rotation experiment can set limits on the magnetic moment of a electrically-neutral, dark-matter particle, and the limits increase in stringency as the candidate-particle mass decreases. Consequently, if we assume the dark-matter particle to be a thermal relic, our most stringent constraints emerge at the keV mass scale. We discuss how such an experiment could be realized and determine the limits on the magnetic moment as a function of mass which follow given demonstrated experimental capacities.
24 pages, 5 figures