Electron and positron energy spectra: HEAT magnet spectrometer results

Details Electron and positron energy spectra: HEAT magnet spectrometer results Electron and positron energy spectra: HEAT magnet spectrometer results

Aug 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999icrc....3...49d&link_type=abstract

Proceedings of the 26th International Cosmic Ray Conference. August 17-25, 1999. Salt Lake City, Utah, USA. Under the auspices o

Physics

Scientific paper

Observations of the cosmic ray electron and positron spectra have been carried out with a balloon-based detector, the "High-Energy Antimatter Telescope" (HEAT), flown in May 1994 from Fort Sumner, NM and August 1995 from Lynn Lake, Manitoba. We present a summary of the instrument procedures and data analysis as well as electron and positron measurements. The electron and positron spectra results from the Lynn Lake flight are presented here for the first time and are combined with the previously-reported Fort Sumner data. These measurements have provided new determinations of the energy spectra of electrons from 1-100 GeV and positrons from 1-50 GeV. Within the experimental uncertainties, the intensity of positrons is consistent with a purely secondary origin, due to nuclear interactions in interstellar space.

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