Limits on the antiproton/proton ratio in the cosmic radiation from 100 MeV to 1580 MeV

Details Limits on the antiproton/proton ratio in the cosmic radiation from 100 MeV to 1580 MeV Limits on the antiproton/proton ratio in the cosmic radiation from 100 MeV to 1580 MeV

Jan 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...349...78s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 349, Jan. 20, 1990, p. 78-90. Research supported by Boston University, Indi

Computer Science

Sound

45

Antiprotons, Elementary Particle Interactions, Interstellar Matter, Protons, Secondary Cosmic Rays, Astronomical Spectroscopy, Balloon Sounding, Interstellar Magnetic Fields, Mass Spectra, Monte Carlo Method

Scientific paper

A search for antiprotons (p-bars) in the cosmic radiation with energies below 1580 MeV at the top of the atmosphere was performed using the PBAR balloon-borne magnetic spectrometer. No antiprotons were observed in 124,000 proton events. For the energy interval 100-640 MeV, an upper limit is reported to the p-bar/p ratio of 2.8 x 10 to the -5th at the top of the atmosphere, after correcting for instrumental efficiencies and contributions from secondary particles. No antiproton was observed in the energy interval 640-1580 MeV, which yields an upper limit to the p-bar/p ratio of 6.1 x 10. By combining both data sets, the limits on the p-bar/p ratio can be improved to 2.0 x 10 to the -5th. The detector performance and instrumental efficiencies of the individual detector components are discussed. A detail Monte Carlo calculation was used to evaluate the instrumental efficiency for both antiprotons and protons as a function of momentum.

Affiliated with

Also associated with

No associations

Rating

Limits on the antiproton/proton ratio in the cosmic radiation from 100 MeV to 1580 MeV does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Limits on the antiproton/proton ratio in the cosmic radiation from 100 MeV to 1580 MeV, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limits on the antiproton/proton ratio in the cosmic radiation from 100 MeV to 1580 MeV will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1560704