Dark matter spin-dependent limits for WIMP interactions on 19F by PICASSO

2009/07/31 by S. Archambault, F. Aubin, M. Auger +41 · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Dark matter #Massive particle #Neutron #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Spin (aerodynamics) #WIMP #hep-ex

paper · pdf · doi:10.1016/j.physletb.2009.11.019

published as Phys.Lett.B682:185-192,2009 · Revised version, accepted for publication in Phys. Lett. B, 20 pages, 7 figures

openalex publication_date 2009/11/01 · arxiv created 2009/11/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

The PICASSO experiment at SNOLAB reports new results for spin-dependent WIMP interactions on ¹⁹F using the superheated droplet technique. A new generation of detectors and new features which enable background discrimination via the rejection of non-particle induced events are described. First results are presented for a subset of two detectors with target masses of ¹⁹F of 65 g and 69 g respectively and a total exposure of 13.75 ± 0.48 kgd. No dark matter signal was found and for WIMP masses around 24 GeV/c² new limits have been obtained on the spin-dependent cross section on ¹⁹F of σ_F = 13.9 pb (90% C.L.) which can be converted into cross section limits on protons and neutrons of σ_p = 0.16 pb and σ_n = 2.60 pb respectively (90% C.L). The obtained limits on protons restrict recent interpretations of the DAMA/LIBRA annual modulations in terms of spin-dependent interactions.

Citations

• Nuclear Spin in Direct Dark Matter Search
• SIMPLE Dark Matter Search Results
• Review of mathematics, numerical factors, and corrections for dark matter experiments based on elastic nuclear recoil
• Limits on a Muon Flux from Neutralino Annihilations in the Sun with the IceCube 22-String Detector
• Model-Independent Assessment of Current Direct Searches for Spin-Dependent Dark Matter
• A new model-independent method for extracting spin-dependent cross section limits from dark matter searches
• First results from DAMA/LIBRA and the combined results with DAMA/NaI

Cited by

• Exothermic dark matter