The behaviour of constrained caloric curves as ultimate signature of a phase transition for hot nuclei

Abstract : Simulations based on experimental data obtained from multifragmenting quasifused nuclei produced in central 129Xe + natSn collisions have been used to deduce event by event freeze-out properties on the thermal excitation energy range 4-12 AMeV. From these properties and temperatures deduced from proton transverse momentum fluctuations constrained caloric curves have been built. At constant average volumes caloric curves exhibit a monotonous behaviour whereas for constrained pressures a backbending is observed. Such results support the existence of a first order phase transition for hot nuclei.
Document type :
Conference papers
11th International Conference on Nucleus-Nucleus Collisions (NN2012), May 2012, San Antonio, Texas, United States. 420, pp.012081, 2013, <10.1088/1742-6596/420/1/012081>


https://hal.archives-ouvertes.fr/hal-00720759
Contributor : Bernard Borderie <>
Submitted on : Wednesday, July 25, 2012 - 5:48:34 PM
Last modification on : Wednesday, May 18, 2016 - 2:01:26 PM
Document(s) archivé(s) le : Friday, October 26, 2012 - 3:15:07 AM

Files

NN2012_borderie.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

B. Borderie, E. Galichet, M.F. Rivet, S. Piantelli, Ad.R. Raduta, et al.. The behaviour of constrained caloric curves as ultimate signature of a phase transition for hot nuclei. 11th International Conference on Nucleus-Nucleus Collisions (NN2012), May 2012, San Antonio, Texas, United States. 420, pp.012081, 2013, <10.1088/1742-6596/420/1/012081>. <hal-00720759>

Export

Share

Metrics

Record views

307

Document downloads

105