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.

28 pages including 14 figures; submitted to Nucl. Phys. A

References in corpus (5)

• Isospin Physics in Heavy-Ion Collisions at Intermediate Energies
• Central Collisions of Au on Au at 150, 250 and 400 A MeV
• Antisymmetrized molecular dynamics with quantum branching processes for collisions of heavy nuclei
• Multifragmentation of a very heavy nuclear system (I): Selection of single-source events
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Cited by in corpus (52)

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• Relativistic Thomas-Fermi description of Sm isotopes at finite temperature
• New approach of fragment charge correlations in 129Xe+(nat)Sn central collisions
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• Comment on "Negative heat capacities and first order phase transitions in nuclei" by L.G. Moretto et al
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• Evolution of the decay mechanisms in central collisions of $Xe$ + $Sn$ from $E/A$ = 8 to 29 $MeV$