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Liquid-fog and liquid-gas phase transitions in hot nuclei |
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| Authors: | V A Karnaukhov H Oeschler A Budzanowski S P Avdeyev V V Kirakosyan V K Rodionov P A Rukoyatkin A V Simonenko W Karcz I Skwirczyńska E A Kuzmin E Norbeck A S Botvina |
| Institution: | (1) Joint Institute for Nuclear Research, Dubna, Moscow oblast, 141980, Russia;(2) Institute für Kernphysik, University of Technology, Darmstadt, Germany;(3) H. Niewodniczanski Institute of Nuclear Physics, Cracow, Poland;(4) Russian Research Centre Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russia;(5) University of Iowa, Iowa City, USA;(6) Institute for Nuclear Research, Russian Academy of Sciences, Moscow, pr. Shestidesyatiletiya Oktyabrya 7a, 117312, Russia |
| Abstract: | Thermal multifragmentation of hot nuclei is interpreted as the nuclear liquid-fog phase transition inside the spinodal region. The exclusive data for p(8.1 GeV) + Au collisions are analyzed within the framework of the statistical model SMM. It is found that the partition of hot nuclei is specified after expansion to a volume equal to V t = (2.6 ± 0.3)V 0. The freeze-out volume is found to be twice as large: V f = (5 ± 1)V 0. The similarity between multifragmentation and ordinary fission is discussed. The text was submitted by the authors in English. |
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