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Memory effects in nuclear fragmentation

Abstract : A general procedure to identify instability regions which lead to multifragmentation events is presented. The dominant mode at the instability point is determined from the knowledge of the mean properties (density and temperature) of the system at that point. For spinodal instabilities the dependence of fragment structures on the dynamical conditions is studied changing the beam energy and the considered equation of state. An important competition between two dynamical effects, expansion of the system and growth of fluctuations, is revealed. It is shown that in heavy-ion central collisions at medium energies memory effects of the configuration formed at the instability time could be observed in the final fragmentation pattern. Some hints towards a fully dynamical picture of fragmentation processes are finally suggested.
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Contributor : Michel Lion <>
Submitted on : Wednesday, November 9, 2011 - 12:47:31 PM
Last modification on : Thursday, February 1, 2018 - 1:33:21 AM

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M. Colonna, M. Di Toro, A. Guarnera. Memory effects in nuclear fragmentation. Nuclear Physics A, Elsevier, 1994, 580, pp.313-322. ⟨10.1016/0375-9474(94)90776-5⟩. ⟨in2p3-00639497⟩



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