Subthreshold pion production
Creators
- 1. Lawrence Livermore National Laboratory, University of California, Livermore, California 94550
Description
The Boltzmann master equation as adopted for treating equilibration in heavy ion reactions has been modified to include pion production rates from (n,n), (n,p), and (p,p) collisions. We calculate neutral pion production cross sections for reactions of 35 MeV/nucleon 14N with 27Al, 58Ni, and 184W targets. We also calculate π0 production cross sections for reactions of 12C+ 12C, 58Ni, 238U at beam energies of 60, 74, and 84 MeV/nucleon, and of 44 MeV/nucleon 40Ar with 40Ca, 119Sn, and 238U. Results of these calculations are generally within a factor of 2 of experimental values. Compound nucleus excitations predicted for the equilibrated nuclei for the above reactions are also estimated for implications in a compound nucleus interpretation of the pion production mechanism
Additional details
Publishing Information
- Journal Title
- Phys. Rev., C
- Journal Volume
- 32
- Journal Issue
- 4
- Series
- Phys. Rev., C.
- Journal Page Range
- 1231-1237
- ISSN
- 0556-2813
- CODEN
- PRVCA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 17015239
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ALUMINIUM 27 TARGET; ARGON 40 REACTIONS; BOLTZMANN EQUATION; CARBON 12 REACTIONS; CARBON 12 TARGET; COMPOUND-NUCLEUS REACTIONS; COPPER 61 TARGET; CROSS SECTIONS; GEV RANGE 01-10; MEV RANGE 100-1000; NEUTRON REACTIONS; NICKEL 58 TARGET; NITROGEN 14 REACTIONS; PARTICLE PRODUCTION; PIONS NEUTRAL; PROTON REACTIONS; TIN 119 TARGET; TUNGSTEN 184 TARGET; URANIUM 238 TARGET
- Descriptors DEC
- BARYON REACTIONS; BOSONS; DIFFERENTIAL EQUATIONS; ELEMENTARY PARTICLES; ENERGY RANGE; EQUATIONS; GEV RANGE; HADRON REACTIONS; HADRONS; HEAVY ION REACTIONS; MESONS; MEV RANGE; NUCLEAR REACTIONS; NUCLEON REACTIONS; PARTIAL DIFFERENTIAL EQUATIONS; PIONS; PSEUDOSCALAR MESONS; TARGETS