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Secondary production of neutral pi-mesons and the diffuse galactic gamma radiationIsobaric and scaling model predictions of the secondary spectra of neutral pi-mesons produced in proton-proton collisions, at energies between threshold and a few GeV, are compared on the basis of accelerator data and found to show the isobaric model to be superior. This model is accordingly used, in conjuction with a scaling model representation at high energies, in a recalculation of the pi exp (0) gamma-radiation's contribution to the diffuse galactic gamma background; the cosmic ray-induced production of photons (whose energy exceeds 100 MeV) by such radiation occurs at a rate of 1.53 x 10 to the -25 photons/(s-H atom). These results are compared with previous calculations of this process as well as with COS-B observations of the diffuse galactic gamma-radiation.
Document ID
19860050746
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dermer, C. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1986
Publication Information
Publication: Astronomy and Astrophysics
Volume: 157
Issue: 2, Ma
ISSN: 0004-6361
Subject Category
Astrophysics
Accession Number
86A35484
Distribution Limits
Public
Copyright
Other

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