Phase transitions in algebraic cluster models

Phase transitions in algebraic cluster models

We study the phase transitions of two algebraic cluster models, which have similar interactions, but differ from each other in their model spaces. The semimicroscopical model incorporates the Pauli exclusion principle, while the phenomenological one does not. The appearance of the quasidynamical SU(...

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Veröffentlicht in:Physical review. C, Nuclear physics Nuclear physics, 2006-08, Vol.74 (2), Article 024319
Hauptverfasser: Yépez-Martínez, H., Cseh, J., Hess, P. O.
Format: Artikel
Sprache:eng
Schlagworte:
CLUSTER MODEL
NUCLEAR PHYSICS AND RADIATION PHYSICS
PAULI PRINCIPLE
PHASE TRANSFORMATIONS
SHELL MODELS
SU-3 GROUPS
SYMMETRY BREAKING
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Zusammenfassung:We study the phase transitions of two algebraic cluster models, which have similar interactions, but differ from each other in their model spaces. The semimicroscopical model incorporates the Pauli exclusion principle, while the phenomenological one does not. The appearance of the quasidynamical SU(3) symmetry is also investigated in the presence of an explicitly symmetry-breaking interaction. Examples of binary cluster configurations with two, one, or zero closed-shell clusters are studied.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.74.024319