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Experimental and theoretical search for a phase transition in nuclear fragmentation

  • Nuclear structure and reactions
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The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

Abstract:

Phase transitions of small isolated systems are signaled by the shape of the caloric equation of state e *(T), the relationship between the excitation energy per nucleon e * and temperature. In this work we compare the experimentally deduced e *(T) to the theoretical predictions. The experimentally accessible temperature was extracted from evaporation spectra from incomplete fusion reactions leading to residue nuclei. The experimental e *(T) dependence exhibits the characteristic S-shape at e *= 2–3 MeV/A. Such behavior is expected for a finite system at a phase transition. The observed dependence agrees with predictions of the MMMC-model, which simulates the total accessible phase-space of fragmentation.

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Received: 30 November 1998 / Revised version: 8 March 1999

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Chbihi, A., Schapiro, O., Salou, S. et al. Experimental and theoretical search for a phase transition in nuclear fragmentation . EPJ A 5, 251–255 (1999). https://doi.org/10.1007/s100500050283

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  • DOI: https://doi.org/10.1007/s100500050283

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