Title

Collective Expansion in Central Au+Au Collisions

Authors

W. C. Hsi, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University
G. J. Kunde, Gesellschaft für Schwerionenforschung
J. Pochodzalla, Gesellschaft für Schwerionenforschung
W. G. Lynch, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
M. B. Tsang, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
M. L. Begemann-Blaich, Institut für Kernphysik, Universität Frankfurt
D. R. Bowman, National Superconducting Cyclotron Laboratory and Department of Physics Astronomy Michigan State University
R. J. Charity, Department of Chemistry, Washington University
F. Cosmo, Centre de Recherches Nucléoires
A. Ferrero, INFN and Dipartimento di Fisica, Università degli Studi di Milano
C. K. Gelbke, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University
T. Glasmacher, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University
T. Hofmann, Gesellschaft für Schwerionenforschung
G. Imme, INFN and Dipartimento di Fisica dell' Università
I. Iori, INFN and Dipartimento di Fisica, Università degli Studi di Milano
J. Hubele, Gesellschaft für Schwerionenforschung
J. Kempter, Institut für Kernphysik, Universität Frankfurt
P. Kreutz, Institut für Kernphysik, Universität Frankfurt
W. D. Kunze, Gesellschaft für Schwerionenforschung
V. Lindenstruth, Gesellschaft für Schwerionenforschung
M. A. Lisa, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory
U. Lynen, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory
M. Mang, Institut für Kernphysik, Universität Frankfurt
A. Moroni, INFN and Dipartimento di Fisica, Università degli Studi di Milano
W. F.J. Müller, Gesellschaft für Schwerionenforschung
M. Neumann, Institut für Kernphysik, Universität Frankfurt
B. Ocker, Institut für Kernphysik, Universität Frankfurt
C. A. Ogilvie, Institut für Kernphysik, Universität Frankfurt
Graham F. Peaslee, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State UniversityFollow
G. Raciti, INFN and Dipartimento di Fisica dell' Università
F. Rosenberger, Institut für Kernphysik, Universität Frankfurt
H. Sann, Gesellschaft für Schwerionenforschung
R. Scardaoni, INFN and Dipartimento di Fisica, Università degli Studi di Milano
A. Schüttauf, Institut für Kernphysik, Universität Frankfurt
C. Schwarz, Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University
W. Seidei, FZ Rossendorf
V. Serfling, Institut für Kernphysik, Universität Frankfurt
L. G. Sobotka, Department of Chemistry, Washington University

Document Type

Article

Publication Date

12-19-1994

Abstract

Energy spectra for intermediate mass fragments produced in central Au + Au collisions at EA=100 MeV indicate a collective expansion at breakup. For the first time, values for this collective expansion energy per nucleon are extracted independently for each charge. Typically, these values are one-third to one-half of the incident kinetic energy per nucleon in the c.m. system, but they decrease with Zf, suggesting that all fragments do not participate equally in the collective expansion.

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