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

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

2007-09-11

arxiv.org/abs/0709.1618v2

Nucl.Phys.A795:47-69,2007

Physics

Nuclear Physics

Nuclear Experiment

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

Scientific paper

10.1016/j.nuclphysa.2007.08.011

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.

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