Journal
ADVANCES IN SPACE RESEARCH
Volume 41, Issue 12, Pages 2056-2060Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.asr.2007.02.041
Keywords
dark matter; dark matter detectors; cosmic-rays; cosmic-ray detectors; antiparticle; antideuteron; exotic atom; GAPS
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We discuss current progress and future plans for the general antiparticle spectrometer experiment (GAPS). GAPS detects antideuterons through the X-rays and pions emitted during the deexcitation of exotic atoms formed when the antideuterons are slowed down and stopped in targets. GAPS provides an exceptionally sensitive means to detect cosmic-ray antideuterons. Cosmic-ray antideuterons can provide indirect evidence for the existence of dark matter in such form as neutralinos or Kaluza-Klein particles. We describe results of accelerator testing of GAPS prototypes, tentative design concepts for a flight GAPS detector, and near-term plans for flying a GAPS prototype on a balloon. (C) 2007 COSPAR. Published by Elsevier Ltd. All rights reserved.
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