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Further Analysis of a Recent Cosmic-Ray Antiproton Experiment

Buffington, A. and Schindler, S. M. (1983) Further Analysis of a Recent Cosmic-Ray Antiproton Experiment. In: 18th International Cosmic Ray Conference, Bangalore, India, August 22 to September 3, 1983. Vol.2. Tata Institute of Fundamental Research , Bombay, India, pp. 71-74. https://resolver.caltech.edu/CaltechAUTHORS:20140423-133518804

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Abstract

Reference is made to the measurements of a cosmic ray antiproton flux at a few hundred MeV reported by Buffington et al. (1981), noting that one of the final background processes to be removed by the data analysis in that study was helium-induced events which satisfied the criteria for topology and timing. The response in the third scintillator S_3 was used to identify and remove these events. For the top two scintillators S_1 and S_2, pulse size information was lost during the data-taking. A method is reported here for the partial retrieval of pulse size information for the scintillator S_2. This is possible because a portion of this signal was subtracted from the Cerenkov response before trigger discrimination and data recording to remove scintillation from the Cerenkov response. For separating protons from more highly charged particles, the method is considered sufficient. It is pointed out that the sample of events identified as antiprotons, for which the method can be applied, has the expected unit charge in scintillator S_2.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu/abs/1983ICRC....2...71BADSArticle
Contact Email Address:dmiles@caltech.edu
Additional Information:This work is supported by Grant NGR-05-002-160 of the National Aeronautics and Space Administration.
Group:Space Radiation Laboratory
Funders:
Funding AgencyGrant Number
NASANGR 05-002-160
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Space Radiation Laboratory1983-08
Record Number:CaltechAUTHORS:20140423-133518804
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140423-133518804
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45154
Collection:CaltechAUTHORS
Deposited By: SWORD User
Deposited On:24 Apr 2014 23:03
Last Modified:03 Oct 2019 06:27

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