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16 April 2024 |
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Article overview
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Accelerator Testing of the General Antiparticle Spectrometer, a Novel Approach to Indirect Dark Matter Detection | | C J Hailey
; T Aramaki
; W W Craig
; L Fabris
; F Gahbauer
; J E Koglin
; N Madden
; K Mori
; H T Yu
; K P Ziock
; | | Date: |
20 Sep 2005 | | Subject: | astro-ph | | Abstract: | We report on recent accelerator testing of a prototype general antiparticle spectrometer (GAPS). GAPS is a novel approach for indirect dark matter searches that exploits the antideuterons produced in neutralino-neutralino annihilations. GAPS captures these antideuterons into a target with the subsequent formation of exotic atoms. These exotic atoms decay with the emission of X-rays of precisely defined energy and a correlated pion signature from nuclear annihilation. This signature uniquely characterizes the antideuterons. Preliminary analysis of data from a prototype GAPS in an antiproton beam at the KEK accelerator in Japan has confirmed the multi-X-ray/pion star topology and indicated X-ray yields consistent with prior expectations. Moreover our success in utilizing solid rather than gas targets represents a significant simplification over our original approach and offers potential gains in sensitivity through reduced dead mass in the target area. | | Source: | arXiv, astro-ph/0509587 | | Services: | Forum | Review | PDF | Favorites | |
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