Comparison of methods for calculating cross sections at high energies in astrophysics

Details Comparison of methods for calculating cross sections at high energies in astrophysics Comparison of methods for calculating cross sections at high energies in astrophysics

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apjs...35..137s&link_type=abstract

Astrophysical Journal Supplement Series, vol. 35, Oct. 1977, p. 137-144.

Astronomy and Astrophysics

Astrophysics

9

Astrophysics, Cross Sections, High Energy Interactions, Nuclear Reactions, Angular Distribution, Heavy Nuclei, Monte Carlo Method, Nuclear Fission, Pions, Spallation

Scientific paper

An investigation is conducted concerning the relative merits of current techniques for calculating high-energy nuclear reaction cross sections. It is found that a use of semiempirical equations has advantages if interactions with a large set of different target nuclides have to be considered. The computation time in such a case is about 3 orders of magnitude less than for Monte Carlo calculations. Only semiempirical techniques are currently applicable to fission and fragmentation reactions. Monte Carlo calculations must be used for neutron-induced reactions, because semiempirical calculations for such reactions have not been developed.

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