Freezeout density in relativistic nuclear collisions measured by proton-proton correlations

Journal Article · Mon Aug 06 04:00:00 EDT 1984 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.53.544· OSTI ID:6567266

Kolb, B; Loehner, H; Ludewigt, B; Poskanzer, A M; Renner, T; Riedesel, H; Ritter, H G; Warwick, A

Proton-proton correlations were measured with the ''Plastic Ball'' detector for two systems, Ca + Ca and Nb + Nb, at 400 MeV/nucleon as a function of proton multiplicity. The source-size radii extracted from these measurements were found to have a cube-root dependence on the proton multiplicity of the event. The deduced freezeout density, the density at which collisions between fragments cease, was found to be about 25% of normal nuclear matter density.

• Research Organization: Gesselschaft fuer Schwerionenforschung, D-6100 Darmstadt, West Germany and Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6567266
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 53:6; ISSN PRLTA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH METALS
BARYONS
CALCIUM
CALCIUM 40 REACTIONS
CHARGED-PARTICLE REACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
FERMIONS
FRAGMENTATION
GEV RANGE
GEV RANGE 10-100
HADRONS
HEAVY ION REACTIONS
METALS
MULTIPLICITY
NIOBIUM 93 REACTIONS
NIOBIUM 93 TARGET
NUCLEAR REACTIONS
NUCLEONS
PROTONS
TARGETS