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Centrality and momentum-selected elliptic flow: Tighter constraints for the nuclear equation of state

  • P. Chung
  • , N. N. Ajitanand
  • , J. M. Alexander
  • , J. Ames
  • , M. Anderson
  • , D. Best
  • , F. P. Brady
  • , T. Case
  • , W. Caskey
  • , D. Cebra
  • , J. L. Chance
  • , B. Cole
  • , K. Crowe
  • , A. C. Das
  • , J. E. Draper
  • , M. L. Gilkes
  • , S. Gushue
  • , M. Heffner
  • , A. S. Hirsch
  • , E. L. Hjort
  • W. Holzmann, L. Huo, M. Issah, M. Justice, M. Kaplan, D. Keane, J. C. Kintner, J. Klay, D. Krofcheck, R. A. Lacey, J. Lauret, M. A. Lisa, H. Liu, Y. M. Liu, J. Milan, R. McGrath, Z. Milosevich, G. Odyniec, D. L. Olson, S. Panitkin, N. T. Porile, G. Rai, H. G. Ritter, J. L. Romero, R. Scharenberg, L. Schroeder, B. Srivastava, N. T.B. Stone, T. J.M. Symons, J. Whitfield, T. Wienold, R. Witt, L. Wood, W. N. Zhang, P. Danielewicz
  • Stony Brook University
  • University of California at Davis
  • Lawrence Berkeley National Laboratory
  • Ohio State University
  • Brookhaven National Laboratory
  • Purdue University
  • Kent State University
  • Carnegie Mellon University
  • The University of Auckland
  • Michigan State University

Research output: Contribution to journalArticlepeer-review

52 Scopus citations

Abstract

Proton elliptic flow is studied as a function of impact parameter b, for two transverse momentum cuts in 2-6 A GeV Au+Au collisions. The elliptic flow shows an essentially linear dependence on b (for 1.5<b<8 fm) with a negative slope at 2A GeV, a positive slope at 6A GeV, and near zero slope at 4A GeV. These selective flow measurements provide better understanding of the interplay of the different factors responsible for the generation of elliptic flow at AGS energies. In addition, extensive comparisons of the measured and calculated flow values indicate that such measurements offer much more stringent constraints for discriminating between various equations of state.

Original languageEnglish
Article number021901
Pages (from-to)219011-219015
Number of pages5
JournalPhysical Review C - Nuclear Physics
Volume66
Issue number2
DOIs
StatePublished - Aug 1 2002

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