General Antiparticle Spectrometer

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General Antiparticle Spectrometer (GAPS) is an experiment looking for antideuteron particle from outer space cosmic rays. Anti-deuterons can be a crucial signature of dark matter annihilations.[1] GAPS uses long-duration balloon experiments looking for anti-deuteron particles.[2]

Anti-deuterons cab be produced by the annihilation of weakly interacting massive particles (abbreviated as WIMPs).[1] The goal of the GAPS experiment is to captured anti-deuterons in a target material, form an exotic atom in an excited state. The exotic atom would quickly decay, producing X-rays energies with pion signature from nuclear annihilation.[3]

The GAPS ground test was successfully using an particle accelerator at KEK in 2004 and 2005. The first high-altitude balloon test was done in June 2012 with six Si(Li) detectors.

GAPS Team[edit]