Skip to main navigation Skip to search Skip to main content

Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon

  • B. B. Back*
  • , R. R. Betts
  • , J. Chang
  • , W. C. Chang
  • , C. Y. Chi
  • , Y. Y. Chu
  • , J. B. Cumming
  • , J. C. Dunlop
  • , W. Eldredge
  • , S. Y. Fung
  • , R. Ganz
  • , E. Garcia
  • , A. Gillitzer
  • , G. Heintzelman
  • , W. F. Henning
  • , D. J. Hofman
  • , B. Holzman
  • , J. H. Kang
  • , E. J. Kim
  • , S. Y. Kim
  • Y. Kwon, D. McLeod, A. C. Mignerey, M. Moulson, V. Nanal, C. A. Ogilvie, R. Pak, A. Ruangma, D. E. Russ, R. K. Seto, P. J. Stanskas, G. S.F. Stephans, H. Q. Wang, F. L.H. Wolfs, A. H. Wuosmaa, H. Xiang, G. H. Xu, H. B. Yao, C. M. Zou
*Corresponding author for this work
  • Argonne National Laboratory
  • University of Illinois at Chicago
  • University of California at Riverside
  • Academia Sinica - Institute of Physics
  • Columbia University
  • Brookhaven National Laboratory
  • Massachusetts Institute of Technology
  • Max Planck Institute for Physics (Werner Heisenberg Institute)
  • University of Maryland, College Park
  • Jülich Research Centre
  • GSI Helmholtz Centre for Heavy Ion Research
  • Yonsei University
  • National Institute for Nuclear Physics
  • Tata Institute of Fundamental Research
  • Iowa State University
  • University of Rochester
  • National Institutes of Health
  • CW Associates
  • Rabobank Nederland

Research output: Contribution to journalJournal articlepeer-review

Abstract

Transverse mass spectra of protons emitted in Au + Au collisions at beam energies of 6, 8, and 10.8 GeV/ nucleon have been measured as a function of collision centrality over a rapidity range 0.5<ylab<1.5. The spectra are well reproduced by Boltzmann distributions over the measured transverse mass region, which allows for extrapolation of the data to derive the rapidity density and apparent temperature of the emitting source. The shapes of the rapidity distributions suggest significant transparency or substantial longitudinal expansion in even the most central collisions at all three beam energies. The data are analyzed within a simple thermal source plus longitudinal expansion model.

Original languageEnglish
Article number054901
Pages (from-to)549011-5490110
Number of pages4941100
JournalPhysical Review C - Nuclear Physics
Volume66
Issue number5
DOIs
StatePublished - 2002.11.1

Fingerprint

Dive into the research topics of 'Proton emission in Au+Au collisions at 6, 8, and 10.8 GeV/nucleon'. Together they form a unique fingerprint.

Cite this