Fragment flow in Au +Au collisions

M. D. Partlan, S. Albergo, F. Bieser, F. P. Brady, Z. Caccia, D. Cebra, A. D. Chacon, J. Chance, Y. Choi, S. Costa, J. B. Elliott, M. L. Gilkes, Joseph A. Hauger, A. S. Hirsch, E. L. Hjort, A. Insolia, M. Justice, D. Keane, J. Kintner, M. A. LisaH. S. Matis, M. McMahan, C. McParland, D. L. Olson, G. Peilert, N. T. Porile, R. Potenza, G. Rai, J. Rasmussen, H. G. Ritter, J. Romanski, J. L. Romero, G. V. Russo, R. P. Scharenberg, A. Scott, Y. Shao, B. K. Srivastava, T. J.M. Symons, M. L. Tincknell, C. Tuvé, S. Wang, P. G. Warren, H. H. Wieman, K. Wolf

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Abstract

Exclusive measurements have been made of Au +Au reactions with beam energies ranging from 0.25 A to 1.15 A GeV. We present measurements of directed collective flow averaged over all light fragments with masses up to alphas, as well as separate measurements for protons, deuterons, tritons, 3He, 4He, and Li. The results show a strong increase of the directed flow with fragment mass at all energies measured. Experimental results are compared with a quantum molecular dynamics model. We find that neither the soft nor the hard equation of state can describe the data over the entire range of beam energies.

Original languageEnglish (US)
Pages (from-to)2100-2103
Number of pages4
JournalPhysical Review Letters
Volume75
Issue number11
DOIs
Publication statusPublished - Jan 1 1995

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Partlan, M. D., Albergo, S., Bieser, F., Brady, F. P., Caccia, Z., Cebra, D., ... Wolf, K. (1995). Fragment flow in Au +Au collisions. Physical Review Letters, 75(11), 2100-2103. https://doi.org/10.1103/PhysRevLett.75.2100