Parameterizations of Pion Energy Spectrum in Nucleon-Nucleon Collisions

Parameterizations of Pion Energy Spectrum in Nucleon-Nucleon Collisions

Author: National Aeronaut Administration (Nasa)

Publisher: Createspace Independent Publishing Platform

Published: 2018-07-10

Total Pages: 58

ISBN-13: 9781722685447

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The effects of pion (PI) production are expected to play an important role in radiation exposures in the upper atmosphere or on the Martian surface. Nuclear databases for describing pion production are developed for radiation transport codes to support these studies. We analyze the secondary energy spectrum of pions produced in nucleon-nucleon (NN) collisions in the relativistic one-pion exchange model. Parametric formulas of the isospin cross sections for one-pion production channels are discussed and are used to renormalize the model spectrum. Energy spectra for the deuteron related channels (NN yields dPi) are also described. Cucinotta, Franics A. and Wilson, John W. and Norbury, John W. Langley Research Center...