Evidence for Spinodal Decomposition in Nuclear Multifragmentation

Details Evidence for Spinodal Decomposition in Nuclear Multifragmentation Evidence for Spinodal Decomposition in Nuclear Multifragmentation

2001-03-26

arxiv.org/abs/nucl-ex/0103009v1

Phys.Rev.Lett.86:3252-3255,2001

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 4 figures, to be published in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.86.3252

Multifragmentation of a ``fused system'' was observed for central collisions between 32 MeV/nucleon 129Xe and natSn. Most of the resulting charged products were well identified thanks to the high performances of the INDRA 4pi array. Experimental higher-order charge correlations for fragments show a weak but non ambiguous enhancement of events with nearly equal-sized fragments. Supported by dynamical calculations in which spinodal decomposition is simulated, this observed enhancement is interpreted as a ``fossil'' signal of spinodal instabilities in finite nuclear systems.

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