On the annual modulation signal in dark matter direct detection

Details On the annual modulation signal in dark matter direct detection On the annual modulation signal in dark matter direct detection

2011-12-07

arxiv.org/abs/1112.1627v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

discussion of CoGeNT surface event subtraction added, improved statistical analysis, version to appear in JCAP, 29 pages, 9 fi

Scientific paper

We derive constraints on the annual modulation signal in Dark Matter (DM) direct detection experiments in terms of the unmodulated event rate. A general bound independent of the details of DM distribution follows from the assumption that the motion of the earth around the sun is the only source of time variation. The bound is valid for a very general class of particle physics models and also holds in the presence of an unknown unmodulated background. More stringent bounds are obtained, if modest assumptions on symmetry properties of the DM halo are adopted. We illustrate the bounds by applying them to the annual modulation signals reported by the DAMA and CoGeNT experiments in the framework of spin-independent elastic scattering. While the DAMA signal satisfies our bounds, severe restrictions on the DM mass can be set for CoGeNT.

Affiliated with

Also associated with

No associations

Rating

On the annual modulation signal in dark matter direct detection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On the annual modulation signal in dark matter direct detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the annual modulation signal in dark matter direct detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-598389