First analysis of anisotropic flow with Lee Yang zeros

N. Bastid, A. Andronic, V. Barret, Z. Basrak, M. L. Benabderrahmane, R. Caplar, E. Cordier, P. Crochet, P. Dupieux, M. Dbeelalija, Z. Fodor, I. Gapari, A. Gobbi, Y. Grishkin, O. N. Hartmann, N. Herrmann, K. D. Hildenbrand, B. Hong, J. Kecskemeti, Y. J. KimM. Kirejczyk, P. Koczon, M. Korolija, R. Kotte, T. Kress, A. Lebedev, Y. Leifels, X. Lopez, A. Mangiarotti, V. Manko, M. Merschmeyer, D. Moisa, W. Neubert, D. Pelte, M. Petrovici, F. Rami, W. Reisdorf, A. Schuettauf, Z. Seres, B. Sikora, K. S. Sim, V. Simion, K. Siwek-Wilczyska, M. M. Smolarkiewicz, V. Smolyankin, I. J. Soliwoda, M. R. Stockmeier, G. Stoicea, Z. Tyminski, K. Winiewski, D. Wohlfarth, Z. Xiao, I. Yushmanov, A. Zhilin, J. Y. Ollitrault, N. Borghini

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Abstract

We report on the first analysis of directed and elliptic flow with the new method of Lee Yang zeros. Experimental data are presented for Ru+Ru reactions at 1.69A GeV measured with the FOPI detector at SIS/GSI. The results obtained with several methods, based on the event-plane reconstruction, on Lee Yang zeros, and on multiparticle cumulants (up to fifth order) applied for the first time at SIS energies, are compared. They show conclusive evidence that azimuthal correlations between nucleons and composite particles at this energy are largely dominated by anisotropic flow.

Original languageEnglish (US)
Article number011901
JournalPhysical Review C - Nuclear Physics
Volume72
Issue number1
DOIs
StatePublished - Jul 2005

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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