The HEAT Cosmic Ray Antiproton Experiment

Details The HEAT Cosmic Ray Antiproton Experiment The HEAT Cosmic Ray Antiproton Experiment

Oct 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aps..4cf..b201n&link_type=abstract

American Physical Society, Four Corners Section Fall Meeting, October 16-17, 1998 Brigham Young University Provo, Utah, abstract

Physics

Scientific paper

The HEAT (High Energy Antimatter Telescope) collaboration is constructing a balloon-borne instrument to measure the relative abundance of antiprotons and protons in the cosmic rays to kinetic energies of 30 GeV. The instrument uses a multiple energy loss technique to measure the Lorentz factor of through-going cosmic rays, a magnet spectrometer to measure momentum, and several scintillation counters to determine particle charge and direction (up or down in the atmosphere). The antiproton to proton abundance ratio as a function of energy is a probe of the propagation environment of protons through the galaxy. Existing measurements indicate a higher than expected value at both high and low energies. A confirming measurement could indicate peculiar antiproton sources, such as WIMPs or supersymmetric darkmatter candidates.

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