Comparison of methods for calculating cross sections at high energies in astrophysics.
Abstract
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.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- October 1977
- DOI:
- 10.1086/190471
- Bibcode:
- 1977ApJS...35..137S
- Keywords:
-
- Astrophysics;
- Cross Sections;
- High Energy Interactions;
- Nuclear Reactions;
- Angular Distribution;
- Heavy Nuclei;
- Monte Carlo Method;
- Nuclear Fission;
- Pions;
- Spallation;
- Astrophysics