Improved Spin Dependent Limits from the PICASSO Dark Matter Search Experiment

Details Improved Spin Dependent Limits from the PICASSO Dark Matter Search Experiment Improved Spin Dependent Limits from the PICASSO Dark Matter Search Experiment

2005-02-15

arxiv.org/abs/hep-ex/0502028v2

Phys.Lett.B624:186-194,2005

Physics

High Energy Physics

High Energy Physics - Experiment

24 pages, 6 figures; text expanded for clarity, new figure added. To be published in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2005.08.021

The PICASSO experiment reports an improved limit for the existence of cold dark matter WIMPs interacting via spin-dependent interactions with nuclei. The experiment is installed in the Sudbury Neutrino Observatory at a depth of 2070 m. With superheated C4F10 droplets as the active material, and an exposure of 1.98+-0.19 kgd, no evidence for a WIMP signal was found. For a WIMP mass of 29 GeV/c2, limits on the spin-dependent cross section on protons of sigma_p = 1.31 pb and on neutrons of sigma_n = 21.5 pb have been obtained at 90% C.L. In both cases, some new parameter space in the region of WIMP masses below 20 GeV/c2 has now been ruled out. The results of these measurements are also presented in terms of limits on the effective WIMP-proton and neutron coupling strengths a_p and a_n.

Affiliated with

Also associated with

No associations

Rating

Improved Spin Dependent Limits from the PICASSO Dark Matter Search Experiment 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 Improved Spin Dependent Limits from the PICASSO Dark Matter Search Experiment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Improved Spin Dependent Limits from the PICASSO Dark Matter Search Experiment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-242644