The WARP (WIMP Argon Programme) experiment aims to the detection of WIMP elastic scattering interactions occurring in a target of liquid Argon. The simultaneous detection of prompt scintillation light in liquid Argon and delayed signals coming form the extraction of ionization electrons in the gas phase provides a clean identification of recoil events in the range 10 100 keV. The 100 liter detector under construction at the Laboratori Nazionali del Gran Sasso (Italy) will be able to achieve a sensitivity of few 10 8 pbarn. In the same underground site a 2.3 liter prototype has been operated for one year collecting more than 5 106 events. Based on this data, results on the amount of 39Ar isotope in commercial liquid Argon together with a study on the background rejection power achievable by the event selection technique is reported.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - 2005|
|Event||2005 International Europhysics Conference on High Energy Physics, HEP 2005 - Lisboa, Portugal|
Duration: Jul 21 2005 → Jul 27 2005
All Science Journal Classification (ASJC) codes