Antiproton production in Ni+Ni collisions at 1. 85 GeV/nucleon
- Cyclotron Institute and Physics Department, Texas A M University, College Station, Texas 77843 (United States)
Antiproton production in Ni+Ni collisions at 1.85 GeV/nucleon is studied in the relativistic Vlasov-Uehling-Uhlenbeck model. The self-energies of the antiproton are determined from the nucleon self-energies by the [ital G]-parity transformation. Also, the final-state interactions of the antiproton including both rescattering and annihilation are explicitly treated. With a soft nuclear equation of state, the calculated antiproton momentum spectrum is in good agreement with recent experimental data from the heavy-ion synchrotron at Gesellschaft fuer Schwerionenforschung Darmstadt. The effect due to the reduced nucleon and antinucleon masses in a medium is found to be more appreciable than in earlier Bevalac experiments with lighter systems and at higher energies.
- OSTI ID:
- 7032896
- Journal Information:
- Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 50:3; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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General-- (1992-)
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EQUATIONS
EQUATIONS OF STATE
FERMIONS
FINAL-STATE INTERACTIONS
G PARITY
HADRONS
HEAVY ION REACTIONS
INTERACTIONS
MATTER
NICKEL 58 REACTIONS
NICKEL 58 TARGET
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEI
NUCLEONS
PARTICLE PROPERTIES
RELATIVISTIC RANGE
SELF-ENERGY
TARGETS