Mass dependence of directed collective flow

  • M. J. Huang
  • , R. C. Lemmon
  • , F. Daffin
  • , W. G. Lynch
  • , C. Schwarz
  • , M. B. Tsang
  • , C. Williams
  • , P. Danielewicz
  • , K. Haglin
  • , W. Bauer
  • , N. Carlin
  • , R. J. Charity
  • , R. T. De Souza
  • , C. K. Gelbke
  • , W. C. Hsi
  • , G. J. Kunde
  • , M. C. Lemaire
  • , M. A. Lisa
  • , U. Lynen
  • , G. F. Peaslee
  • J. Pochodzalla, H. Sann, L. G. Sobotka, S. R. Souza, W. Trautmann

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Sidewards directed fragment flow has been extracted for 84Kr+197Au collisions at E/A = 200 MeV, using techniques that are free of reaction plane dispersion. The fragment flow per nucleon increases with mass, following a thermal or coalescencelike behavior, and attains roughly constant limiting values at 4≤A≤12. Comparisons of the impact parameter dependences of the measured coalescence-invariant proton flow to Boltzmann-Uehling-Uhlenbeck calculations clearly favor a momentum dependent nuclear mean field.

Original languageEnglish
Pages (from-to)3739-3742
Number of pages4
JournalPhysical Review Letters
Volume77
Issue number18
DOIs
StatePublished - 1996

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