Collective flow observed in relativistic nuclear collisions

Journal Article · Mon Apr 30 04:00:00 EDT 1984 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.52.1590· OSTI ID:7096490

Gustafsson, H A; Gutbrod, H H; Kolb, B; Lohner, H; Ludewigt, B; Poskanzer, A M; Renner, T; Riedesel, H; Ritter, H G; Warwick, A

The reactions Ca+Ca and Nb+Nb at 400 MeV/nucleon have been studied at the Bevalac using the ''Plastic Ball'' spectrometer. A global analysis of the events shows two nontrivial collective flow effects: the bounce-off of the projectile fragments, and the side-splash of the intermediate-rapidity fragments for the higher-multiplicity Nb+Nb events. Neither effect is seen in a knockon cascade calculation. A simulation with an event-generating statistical model has been done in order to extract the magnitudes of the effects.

• Research Organization: Gesellschaft fur Schwerionenforschung, Darmstadt, West Germany and Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 7096490
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 52:18; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CALCIUM 40 REACTIONS
CALCIUM 40 TARGET
CHARGED-PARTICLE REACTIONS
COLLECTIVE MODEL
ENERGY RANGE
EQUATIONS
EQUATIONS OF STATE
FRAGMENTATION
GEV RANGE
GEV RANGE 10-100
HEAVY ION REACTIONS
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NIOBIUM 93 REACTIONS
NIOBIUM 93 TARGET
NUCLEAR MODELS
NUCLEAR REACTIONS
PARTICLE MODELS
RELATIVISTIC RANGE
SPECTROMETERS
STATISTICAL MODELS
TARGETS
THERMODYNAMIC MODEL