Particle production in relativistic heavy ion collisions. [Multiple scattering theory, production cross sections, nuclear models]
Within the framework of multiple scattering theory both the conventional limiting case of independent multiple collisions of nucleons and the multiple scattering of collective degrees of freedom are presented and contrasted. Dramatically different predictions may be obtained for particle production in relativistic nucleon-nucleus and nucleus-nucleus collisions. First is studied the pion multiplicity distributions to uncover evidence for a coherent-collective mechanism. Attention is then focused on potentially more conclusive tests--subthreshold (in the nucleon-nucleon kinematics) production of massive particles: anti p, K/sup -/, psi/J and W, as examples. Evidence for a collective mechanism is found by examining subthreshold anti p production data in particle-nucleus collisions and contrasting with results from the IMC model including realistic Fermi motion. As perhaps the leading candidate for a coherent-collective mechanism the coherent tube model is specifically adopted to explain these data since it has been successful in high energy particle-nucleus collisions.
- Research Organization:
- Ames Lab., IA (USA)
- DOE Contract Number:
- W-7405-ENG-82
- OSTI ID:
- 7047506
- Report Number(s):
- IS-4413
- Country of Publication:
- United States
- Language:
- English
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIBARYONS
ANTIMATTER
ANTINUCLEI
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CHARGED-PARTICLE REACTIONS
COHERENT SCATTERING
COLLECTIVE MODEL
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
HEAVY ION REACTIONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
KAONS
KAONS MINUS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
MULTIPLE PRODUCTION
MULTIPLE SCATTERING
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
PSI RESONANCES
RELATIVISTIC RANGE
RESONANCE PARTICLES
SCATTERING
STRANGE PARTICLES
VECTOR MESONS