The Earth's changing velocity relative to a halo changes the recoil-rate integral above a detector threshold. Its phase and energy dependence depend on the velocity distribution and interaction, so a sinusoidal fit is a model approximation. Seasonal instrumental or environmental backgrounds can also vary annually; energy radiation spectrum, multiple-hit samples, time stability and independent targets help test a proposed dark-matter interpretation.
Articles by others on the same topic
There are currently no matching articles.