## Abstract

The reactions ^{129}Xe + ^{119}Sn at 50 MeV/u and ^{36}Ar + ^{58}Ni from 52 to 95 MeV/u were studied with the 4π array INDRA. The quasi-projectiles were reconstructed from peripheral to central collisions, and their excitation energies range from 2 to 20 MeV/nucleon. The apparent temperatures obtained from the kinetic energy distribution of light particles, from the double ratios of isotopic yields and from the relative populations of excited states, respectively, differ much from each other. Two statistical models, taking into account the detailed energy level structure of decaying primary fragments, can explain these differences. The relationship between the initial temperature and excitation energy does not exhibit any discontinuity of the caloric capacity: the liquid-gas phase transition is gradual.

Original language | English |
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Pages (from-to) | 97-101 |

Number of pages | 5 |

Journal | Revista Mexicana de Fisica |

Volume | 44 |

Issue number | SUPPL. 2 |

State | Published - Oct 1998 |

## Keywords

- Heavy ions
- Liquid-gas phase transition
- Statistical models

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