Debris Flows in Direct Dark Matter Searches-The modulation effect

TL;DR

This paper investigates how non-standard WIMP velocity distributions, such as Debris Flows, affect direct dark matter detection rates and suggests these effects can be identified through annual modulation data.

Contribution

It introduces the impact of Debris Flows on detection rates and highlights their potential observability via annual modulation signals in dark matter experiments.

Findings

Debris Flows can significantly alter detection rate predictions.

Annual modulation patterns may reveal the presence of Debris Flows.

Non-standard velocity distributions are distinguishable from standard models.

Abstract

The effect of some possible non standard WIMP velocity distributions, like the Debris Flows recently proposed, on the direct dark matter detection rates is investigated. We find that such distributions may be deciphered from the data, especially if the time variation of the event rates due to the annual motion of the Earth is observed