Neutrino, gamma-ray, electron, and positron production in an ultrarelativistic plasma

Details Neutrino, gamma-ray, electron, and positron production in an ultrarelativistic plasma Neutrino, gamma-ray, electron, and positron production in an ultrarelativistic plasma

Nov 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...241.1166m&link_type=abstract

Astrophysical Journal, Part 1, vol. 241, Nov. 1, 1980, p. 1166-1174.

Astronomy and Astrophysics

Astronomy

17

Cosmic Plasma, Cosmic Rays, Neutrinos, Particle Production, Plasma-Particle Interactions, Relativistic Plasmas, Electron Plasma, Energy Spectra, Galactic Nuclei, Gamma Ray Astronomy, Positrons, Proton Scattering, Quasars

Scientific paper

Neutrino, gamma-ray, electron and positron production resulting from inelastic proton-proton collisions in a highly relativistic plasma such as may exist in extragalactic radio or gamma-ray burst sources is examined. The source functions of primary (pions, kaons, and neutrons) and secondary (photons, electrons, positrons and neutrinos) products of relativistic nuclear collisions are computed for the cases of power law and Maxwellian relativistic proton distributions. It is shown that in plasma which is optically thin to interactions between the plasma and secondary gamma-rays, electrons and positrons, only a small fraction of the initial energy is emitted in the observable form of neutrinos and gamma rays. In an optically thick plasma on the other hand, most of the energy of the relativistic protons is found to be equally divided between gamma rays and neutrinos, although only the neutrinos may escape freely to be observed.

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