Yield scaling, size hierarchy and fluctuations of observables in fragmentation of excited heavy nuclei

Abstract

Multifragmentation properties measured with INDRA are studied for single sources produced in Xe+Sn reactions in the incident energy range 32-50 A MeV and quasiprojectiles from Au+Au collisions at 80 A MeV. A comparison for both types of sources is presented concerning Fisher scaling, Zipf law, fragment size and fluctuation observables. A Fisher scaling is observed for all the data. The pseudo-critical energies extracted from the Fisher scaling are consistent between Xe+Sn central collisions and Au quasi-projectiles. In the latter case it also corresponds to the energy region at which fluctuations are maximal. The critical energies deduced from the Zipf analysis are higher than those from the Fisher analysis.

30 pages, accepted for publication in Nuclear Physics A, references corrected

References in corpus (5)

• Critical Behavior in Light Nuclear Systems: Experimental Aspects
• Bimodality: a possible experimental signature of the liquid-gas phase transition of nuclear matter
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Cited by in corpus (8)

• Nuclear multifragmentation and phase transition for hot nuclei
• Liquid-Gas phase transition in nuclei
• Fragment properties of fragmenting heavy nuclei produced in central and semi-peripheral collisions
• Signals of bimodality in the fragmentation of Au quasi-projectiles
• Bimodality and Coulomb effects with a canonical thermodynamic model
• Thermodynamics of clusterized matter
• Reaction and fusion cross sections for the near-symmetric system ${}^{129}Xe{+}^{nat}Sn$ from $8$ to $35$ $AMeV$
• Expansion dynamics of Lennard-Jones systems