Nonequilibrium features of the nuclear liquid-gas phase transition

被引:0
作者
Zwieglinski, B
Odeh, T
Gross, C
Schwarz, C
Bassini, R
Begemann-Blaich, M
Blaich, T
Emling, H
Ferrero, A
Fritz, S
Gaff, SJ
Immé, G
Iori, I
Kleinevoss, U
Kunde, GJ
Kunze, WD
Lindenstruth, V
Lynen, U
Mahi, M
Moroni, A
Möhlenkamp, T
Müller, WFJ
Ocker, B
Pochodzalla, J
Raciti, G
Rubehn, T
Sann, H
Schnittker, M
Schüttauf, A
Seidel, W
Serfling, V
Stroth, J
Trautmann, W
Trzcinski, A
Verde, G
Wörner, A
Xi, H
Zude, E
机构
[1] Soltan Inst Nucl Studies, PL-00681 Warsaw, Poland
[2] Gesell Schwerionenforsch, D-64220 Darmstadt, Germany
[3] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[4] Ist Nazl Fis Nucl, I-20133 Milan, Italy
[5] Univ Catania, Dipartmento Fis, I-95129 Catania, Italy
[6] Ist Nazl Fis Nucl, I-95129 Catania, Italy
[7] Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany
[8] Forschungszentrum Rossendorf EV, D-1314 Dresden, Germany
[9] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany
[10] Michigan State Univ, NSCL, E Lansing, MI 48824 USA
来源
ACTA PHYSICA POLONICA B | 1999年 / 30卷 / 03期
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中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Energy spectra of protons emitted by the target residue in Au + Au collisions at 1 GeV/u were measured for different excitation energy bins. They reveal two components with different slopes attributed to preequilibrium and equilibrium emission. The relative contribution of the latter decreases rapidly with excitation energy, so that its presence becomes not apparent for the highest energy bins. It is argued therefore, that equilibrium may not be reached on the gas branch of the caloric curve.
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页码:445 / 449
页数:5
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