Instrumentation, acquisition and analysis of the Phase II SIMPLE dark matter search signals

2011/01/10 by M. Felizardo, Felizardo, M.
Physics and Astronomy · #Cosmology and Gravitation Theories #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Instrumentation and Methods for Astrophysics (astro-ph.IM) #Particle Detector Development and Performance #astro-ph.CO #astro-ph.IM

paper · pdf · doi:10.48550/arxiv.1101.1889

Conference proceedings from the Identification of Dark Matter 2010, Montpellier, France. To be published by SISSA as PoS(IDM2010)006. 5 pages, 3 figures

arxiv created 2011/01/10 · openalex publication_date 2011/01/10 · arxiv updated 2011/01/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I describe the new instrumentation for the SIMPLE dark matter search experiment, and its use in identifying, validating and rejecting non-WIMP backgrounds in the first stage of the Phase II project measurements. Beyond intrinsic acoustic background discrimination, evidence is provided for discrimination between α- and neutron-induced events via analysis of the signal parameters. Analysis of the first stage result of the Phase II measurements yields 14 events associated with the ambient neutron field, consistent with MCNP simulations which include all materials radio-assays and full measurement shielding.

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