|Authors:||J. Pochodzalla, T. Möhlenkamp, T. Rubehn, A. Schüttauf, A. Wörner, E. Zude, M. Begemann-Blaich, Th. Blaich, H. Emling, A. Ferrero, C. Gross, G. Immé, I. Iori, G.J. Kunde1, W.D. Kunze, V. Lindenstruth, U. Lynen, A. Moroni, W.F.J. Müller, B. Ocker, G. Raciti, H. Sann, C. Schwarz, W. Seidel, V. Serfling, J. Stroth, W. Trautmann, A. Trzcinski, A. Tucholski, G. Verde, and B. Zwieglinski|
Phys. Rev. Lett. 75(1995)1040
Preprint GSI-95-13, February 1995
Comment: L.G. Moretto et al.,
Phys. Rev. Lett. 76(1996)2822
Reply: J. Pochodzalla et al., Phys. Rev. Lett. 76(1996)2823
Fragment distributions resulting from Au+Au collisions at an
incident energy of E/A=600 MeV are studied.
From the measured fragment and neutron distributions
the mass and the
excitation energy of the decaying pre-fragments were determined.
A temperature scale was derived from observed
yield ratios of He and Li isotopes.
The relation between this isotope temperature
and the excitation energy of the system exhibits
a behavior which is expected for a phase transition.
The nuclear vapor regime takes over at
an excitation energy of 10 MeV per nucleon, a temperature of
5 MeV and may be characterized by a density of 0.15-0.3 normal
PACS: 24.60.Ky, 25.70.Pq, 25.75.+r
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