Bimodality and Coulomb effects with a canonical thermodynamic model |
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Authors: | G. Chaudhuri S. Das Gupta F. Gulminelli |
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Affiliation: | 1. Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool L69 3GJ, UK;2. School of Chemical & Process Engineering, University of Leeds, Leeds LS2 9JT, UK;3. School of Chemical and Process Engineering, University of Surrey, Surrey GU2 7XH, UK |
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Abstract: | The effect of the Coulomb interaction on the phase diagram of finite nuclei is studied within the Canonical Thermodynamic Model. If Coulomb effects are artificially switched off, this model shows a phenomenology consistent with the liquid–gas phase transition. The inclusion of Coulomb does not significantly affect the phase diagram but it drastically modifies the nature and order parameter of the transition. A clear understanding of the phenomenon can be achieved looking at the distribution of the largest fragment produced in each fragmentation event. Possible connections with experimental observations are outlined. |
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