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New limit on the low-energy antiproton/proton ratio in the Galactic cosmic radiationResults are presented from a balloon-borne apparatus searching for low-energy antiprotons in the Galactic cosmic rays. For energies less than 640 MeV at the top of the atmosphere, no cosmic-ray antiprotons were observed. This yields an upper limit to the antiproton/proton ratio of 0.000046 at the 85-percent confidence level.
Document ID
19880057861
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1103/PhysRevLett.61.145
Authors
Ahlen, S. P. (Boston Univ. Boston, MA, United States)
Beatty, J. J. (Boston University MA, United States)
Barwick, S. (Boston Univ. Boston, MA, United States)
Gerbier, G. (California, University Berkeley, United States)
Bower, C. R. (Indiana University Bloomington, United States)
Date Acquired
August 13, 2013
Publication Date
July 11, 1988
Publication Information
Publication: Physical Review Letters
Volume: 61
ISSN: 0031-9007
Subject Category
Space Radiation
Accession Number
88A45088
Funding Number(s)
CONTRACT_GRANT: NSF PHY-85-19440
CONTRACT_GRANT: NSF PHY-86-03225
CONTRACT_GRANT: NAGW-1035
CONTRACT_GRANT: DE-AC02-76ER-01112
CONTRACT_GRANT: NAS1-17820
CONTRACT_GRANT: NSF PHY-87-02763
Distribution Limits
Public
Copyright
Other

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