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.

arXiv comment30 pages, accepted for publication in Nuclear Physics A, references corrected

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Cited by in corpus (15)

• 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
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• Thermodynamics of clusterized matter
• New scalings in nuclear fragmentation
• Distributions of the largest fragment size in multifragmentation: Traces of a phase transition
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• Expansion dynamics of Lennard-Jones systems
• Constancy of energy partition in central heavy-ion reactions at intermediate energies
• Sequential fissions of heavy nuclear systems
• Systematic study of multifragmentation in Au-Au collisions