First results with the ORPHEUS dark matter detector
arXiv:astro-ph/0404311 · doi:10.1016/j.astropartphys.2004.06.005
Abstract
The ORPHEUS dark matter detector is operating at our underground laboratory in Bern (70 m.w.e.). The detector relies on measuring the magnetic flux variation produced by weakly interacting massive particles (WIMPs) as they heat micron-sized superheated superconducting tin granules (SSG) and induce superconducting-to-normal phase transitions. In an initial phase, 0.45 kg of tin granules in a segmented detector volume have been used. In this paper a general description of the experimental set-up, overall performance of the detector, and first results are presented.
20 pages, Latex, submitted to Astropart. Phys
References in corpus (12)
- Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
- The 2dF Galaxy Redshift Survey: Spectra and redshifts
- Supersymmetric Dark Matter in Light of WMAP
- Re-Evaluation of the Elastic Scattering of Supersymmetric Dark Matter
- Improved Exclusion Limits from the EDELWEISS WIMP Search
- Constraints on Omega_m and sigma_8 from weak lensing in RCS fields
- Light Neutralinos and WIMP direct searches
- Supersymmetric Dark Matter - How Light Can the LSP Be?
- Supersymmetric Dark Matter in the Light of LEP and the Tevatron Collider
- New Results from the Cryogenic Dark Matter Search Experiment
- First results of the ROSEBUD Dark Matter experiment