Influence of the coulomb interaction on the liquid-gas phase transition and nuclear multifragmentation |
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Authors: | Gulminelli F Chomaz Ph Raduta Al H Raduta Ad R |
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Affiliation: | LPC Caen (IN2P3-CNRS/Ensicaen et Université), F-14050 Caen, France. |
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Abstract: | The liquid-gas phase transition is analyzed from the topologic properties of the event distribution in the observables space. A multicanonical formalism allows one to directly relate the standard phase transition with neutral particles to the case where the nonsaturating Coulomb interaction is present, and to interpret the Coulomb effect as a deformation of the probability distributions and a rotation of the order parameter. This formalism is applied to a statistical multifragmentation model and consequences for the nuclear multifragmentation phase transitions are drawn. |
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