ISSN:
1434-601X
Keywords:
PACS: 05.70.Fh Phase transitions: general aspects – 21.10.Ma Level density
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100500050283
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