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Cosmic Ray Antiproton Observations by the Isotope Matter-Antimatter Experiment; 0.2 to 3.2 GeV

Mitchell, J. W. and Barbier, L. M. and Christian, E. R. and Davis, A. J. and Golden, R. L. and Hof, M. and Krombel, K. E. and Labrador, A. W. and Menn, W. and Mewaldt, R. A. and Ormes, J. F. and Rasmussen, I. L. and Reimer, O. and Schindler, S. M. and Simon, M. I. and Stochaj, S. J. and Streitmatter, R. E. and Webber, W. R. (1995) Cosmic Ray Antiproton Observations by the Isotope Matter-Antimatter Experiment; 0.2 to 3.2 GeV. In: Proceedings of the 24th International Cosmic Ray Conference. Vol.3. International Union of Pure and Applied Physics , pp. 72-75.

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We have positively identified sixteen mass-resolved cosmic ray anti.protons with energies between 0.2 and 3.2 GeV using the IMAX balloon-borne magnetic spectrometer. Mass was determined by velocity vs. magnetic rigidity techniques using a high resolution time-of-flight system and silica-aerogel Cherenkov detectors. The anti.protons are clearly separated from the low-mass particle background. Here the measurement technique, data analysis, and resulting proton and antiproton mass histograms are presented.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Christian, E. R.0000-0003-2134-3937
Hof, M.0000-0003-2884-3037
Labrador, A. W.0000-0001-9178-5349
Mewaldt, R. A.0000-0003-2178-9111
Additional Information:© IUPAP. Provided by the NASA Astrophysics Data System. IMAX was supported in the United States by NASA and in Germany by DFG and BMFT. We thank NSBF, and the technical staffs of GSFC, Caltech, and the University of Siegen.
Group:Space Radiation Laboratory
Funding AgencyGrant Number
Deutsche Forschungsgemeinschaft (DFG), GermanyUNSPECIFIED
Bundes Ministerium für Forschung und Technologie (BMFT) GermanyUNSPECIFIED
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Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1995-24
Record Number:CaltechAUTHORS:20140617-161246737
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46314
Deposited By: Deborah Miles
Deposited On:07 Jul 2014 05:41
Last Modified:09 Mar 2020 13:18

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