Two-proton correlations from 14.6{ital A} GeV/{ital c} Si+Pb and 11.5{ital A} GeV/{ital c} Au+Au central collisions
- Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany)
- Idaho National Engineering Laboratory, Idaho Falls, Idaho 83402 (United States)
- McGill University, Montreal (Canada)
- University of Pittsburgh, Pittsburgh, Pennsylvania 15260 (United States)
- State University of New York at Stony Brook, Stony Brook, New York 11794 (United States)
- University of Sao Paulo, Sao Paulo (Brazil)
- Wayne State University, Detroit, Michigan 48202 (United States)
- Physikalisches Institut der Universitaet Heidelberg, Heidelberg (Germany)
Two-proton correlation functions have been measured in Si+Pb collisions at 14.6A GeV/c and Au+Au collisions at 11.5{ital A} GeV/{ital c} by the E814/E877 Collaboration. Data are compared with predictions of the transport model RQMD and the source size is inferred from this comparison. Our analysis shows that, for both reactions, the characteristic size of the system at freeze-out exceeds the size of the projectile, suggesting that the fireball created in the collision has expanded. For Au+Au reactions, the observed centrality dependence of the two-proton correlation function implies that more central collisions lead to larger source sizes. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 688069
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 60; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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