Pion cross section parametrizations for intermediate energy, nucleus-nucleus collisions
- NASA Langley Research Center, Hampton, Virginia 23681 (United States)
Space radiation and cosmic ray transport codes require simple and accurate models for hadron production in intermediate energy, nucleus-nucleus collisions. Several arithmetic parametrization models for pion production are compared to laboratory frame data. It is found that models based on high energy parametrizations are unable to describe intermediate energy, differential cross section data. However, simple thermal model parametrizations, when appropriately transformed from the center of momentum to the laboratory frame, are able to account for the data. Heavy ion transport codes that require algebraic cross section formulas can therefore use arithmetic parametrizations at high energy, but should use thermal model parametrizations at intermediate energy.
- OSTI ID:
- 21202750
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 79, Issue 3; Other Information: DOI: 10.1103/PhysRevC.79.037901; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Subthreshold K{sup -}-meson production in pion-nucleus collisions
Experimental studies of nucleon-nucleon and pion-nucleus interactions at intermediate energies: Final report