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

J. D. Frankland·B. Borderie·M. Colonna·M. F. Rivet·Ch. O. Bacri·Ph. Chomaz·D. Durand·A. Guarnera·M. Parlog·M. Squalli·G. Tabacaru
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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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J. D. Frankland, B. Borderie, M. Colonna, M. F. Rivet, Ch. O. Bacri, Ph. Chomaz, D. Durand, A. Guarnera, M. Parlog, M. Squalli, G. Tabacaru. 2000-07-19. Multifragmentation of a very heavy nuclear system (II): bulk properties and spinodal decomposition. https://doi.org/10.1016/s0375-9474(00)00607-2

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