✦ LIBER ✦

Liquid-gas transition and multifragmentation in expanding nuclei

✍ Scribed by I.N. Mishustin

Publisher: Elsevier Science
Year: 1998
Tongue: English
Weight: 828 KB
Volume: 630
Category: Article
ISSN: 0375-9474
DOI: 10.1016/s0375-9474(97)00748-3

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✦ Synopsis

In this talk I present results showing that there are two distinct regimes of nuclear multifragmentation. When nuclei are heated up without compression the multifragment disintegration goes like a liquid-gas phase transition in a finite system, similar to the boiling of ordinary fluids. This process is well described by the statistical model assuming a thermal equilibrium at the break-up stage. In contrast, when matter is initially compressed, a strong collective flow develops at the expansion stage. In this explosive process the multifragment break-up is governed by the dynamical effects which can be accounted for only by non-equilibrium transport models.

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