Multifragmentation of a very heavy nuclear system (II) bulk properties and spinodal decomposition

Abstract : The properties of fragments and light charged particles emitted in multifragmentation of single sources formed in central 36AMeV Gd+U collisions are reviewed. Most of the products are isotropically distributed in the reaction c.m. Fragment kinetic energies reveal the onset of radial collective energy. A bulk effect is experimentally evidenced from the similarity of the charge distribution with that from the lighter 32AMeV Xe+Sn system. Spinodal decomposition of finite nuclear matter exhibits the same property in simulated central collisions for the two systems, and appears therefore as a possible mechanism at the origin of multifragmentation in this incident energy domain.
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Submitted on : Monday, July 10, 2006 - 9:46:54 AM
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J.D. Frankland, B. Borderie, M. Colonna, M.F. Rivet, Ch.O. Bacri, et al.. Multifragmentation of a very heavy nuclear system (II) bulk properties and spinodal decomposition. Nuclear Physics A, Elsevier, 2001, 689, pp.940-964. ⟨10.1016/S0375-9474(00)00607-2⟩. ⟨in2p3-00009766⟩

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