Published 1995
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Cosmic Ray Antiproton Observations from 0.2 to 3.2 GeV
Abstract
The Isotope Matter Antimatter Experiment (IMAX) has detected 16 antiprotons, in the energy range from 0.2 to 3.2 GeV. This result provides significant improvement in statistical accuracy over previous cosmic ray antiproton measurements in the same energy range. This measurement has been corrected for instrumental and atmospheric losses, yielding top-of-the-atmosphere antiproton to proton ratios in three energy intervals. These results are consistent with recent theoretical predictions in which antiprotons are produced as secondary cosmic rays and are transported through the galaxy according to the standard Leaky Box model.
Additional Information
© IUPAP. Provided by the NASA Astrophysics Data System. This research was supported in part by NASA grant NAGW-1919. One of us (AWL) thanks the NASA Graduate Student Researchers Program for its support. The IMAX team is grateful to the NSBF for a successful balloon flight.Attached Files
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Additional details
- Eprint ID
- 46316
- Resolver ID
- CaltechAUTHORS:20140617-162911825
- NAGW-1919
- NASA
- NASA Graduate Student Researchers Program
- Created
-
2014-07-07Created from EPrint's datestamp field
- Updated
-
2020-03-09Created from EPrint's last_modified field
- Caltech groups
- Space Radiation Laboratory
- Other Numbering System Name
- Space Radiation Laboratory
- Other Numbering System Identifier
- 1995-25