Critical behaviors in central and peripheral collisions: a comparative analysis

Abstract

Quasi-projectile events from peripheral 35 A.MeV Au+ Au collisions are compared to central Au + C, Au + Cu and Au + Au events in the same range of excitation energy in terms of critical partitions and critical exponents. All the different data sets coherently point to a value E*c=4.5 A.MeV for the apparent critical excitation energy. The critical exponents tau, sigma are compatible with the observation of a liquid-gas phase transition for these systems.

21 pages, 10 postscript figures, submitted to Phys.Rev.C on 6-may-2002

References in corpus (8)

• Caloric curves and critical behavior in nuclei
• The liquid to vapor phase transition in excited nuclei
• On the reliability of negative heat capacity measurements
• Scaling in the Lattice Gas Model
• Order parameter fluctuations and thermodynamic phase transitions in finite spin systems and fragmenting nuclei
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Cited by in corpus (13)

• Nuclear multifragmentation and phase transition for hot nuclei
• Liquid-Gas phase transition in nuclei
• The statistical multifragmentation model for liquid-gas phase transition with a compressible nuclear liquid
• Fragment properties of fragmenting heavy nuclei produced in central and semi-peripheral collisions
• Experimental Signals of Phase Transition
• Yield scaling, size hierarchy and fluctuations of observables in fragmentation of excited heavy nuclei
• Phase Transition in Liquid Drop Fragmentation
• Signals of bimodality in the fragmentation of Au quasi-projectiles
• Thermodynamics of clusterized matter
• Size and asymmetry of the reaction entrance channel: influence on the probability of neck production
• Neutron-rich nuclei and the equation of state of stellar matter
• Constancy of energy partition in central heavy-ion reactions at intermediate energies
• Systematic study of multifragmentation in Au-Au collisions