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Digitale Medien

Experimental and theoretical search for a phase transition in nuclear fragmentation (1999)

Chbihi, A. ; Schapiro, O. ; Salou, S. ; [weitere]

Springer

The European physical journal 5 (1999), S. 251-255

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Details

ISSN: 1434-601X

Schlagwort(e): PACS: 05.70.Fh Phase transitions: general aspects – 21.10.Ma Level density

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: 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.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/s100500050283

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