The charge distribution of the heaviest fragment detected in the decay of quasiprojectiles produced in intermediate energy heavy-ion collisions has been observed to be bimodal. This feature is expected as a generic signal of phase transition in nonextensive systems. In this Letter, we present new analyses of experimental data from Au on Au collisions at 60, 80, and 100 MeV=nucleon showing that bimodality is largely independent of the data selection procedure and of entrance channel effects. An estimate of the latent heat of the transition is extracted.
: Bimodal behavior of the heaviest fragment distribution in projectile fragmentation / E., B., D., M., B., B., F., G., M. F., R., B., T., R., B., A., C., R., D., J. D., F., E., G., F., G.M., D., G., P., L., J., L., N., L.N., M., P., Rosato, E., R., R., Vigilante, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 103:(2009), pp. 1-5. [10.1103/PhysRevLett.103.072701]
: Bimodal behavior of the heaviest fragment distribution in projectile fragmentation
ROSATO, ELIO;VIGILANTE, MARIANO;
2009
Abstract
The charge distribution of the heaviest fragment detected in the decay of quasiprojectiles produced in intermediate energy heavy-ion collisions has been observed to be bimodal. This feature is expected as a generic signal of phase transition in nonextensive systems. In this Letter, we present new analyses of experimental data from Au on Au collisions at 60, 80, and 100 MeV=nucleon showing that bimodality is largely independent of the data selection procedure and of entrance channel effects. An estimate of the latent heat of the transition is extracted.| File | Dimensione | Formato | |
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