Direct SUSY dark matter detection-theoretical rates due to the spin

Details Direct SUSY dark matter detection-theoretical rates due to the spin Direct SUSY dark matter detection-theoretical rates due to the spin

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004jphg...30.1127v&link_type=abstract

Journal of Physics G: Nuclear and Particle Physics, Volume 30, Issue 9, pp. 1127-1144 (2004).

Physics

23

Scientific paper

The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat Universe. Thus direct dark matter detection, consisting of detecting the recoiling nucleus, is central to particle physics and cosmology. Supersymmetry provides a natural dark matter candidate, the lightest supersymmetric particle (LSP). The relevant cross sections arise out of two mechanisms: (i) the coherent mode, due to the scalar interaction and (ii) the spin contribution arising from the axial current. In this paper we will focus on the spin contribution, which is expected to dominate for light targets. For both modes it is possible to obtain detectable rates, but in most models the expected rates are much lower than the present experimental goals. So one should exploit two characteristic signatures of the reaction, namely the modulation effect and in directional experiments the correlation of the event rates with the sun's motion. In standard non-directional experiments the modulation is small, less than 2 per cent. In the case of the directional event rates we would like to suggest that the experiments exploit two features of the process, which are essentially independent of the SUSY model employed, namely: (1) the forward backward asymmetry, with respect to the sun's direction of motion, is very large and (2) the modulation is much larger, especially if the observation is made in a plane perpendicular to the sun's velocity. In this case the difference between maximum and minimum can be larger than 40 per cent and the phase of the earth at the maximum is direction dependent.

Affiliated with

Also associated with

No associations

Rating

Direct SUSY dark matter detection-theoretical rates due to the spin 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 Direct SUSY dark matter detection-theoretical rates due to the spin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct SUSY dark matter detection-theoretical rates due to the spin will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-797530