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Generalized-seniority pattern and thermal properties in even Sn isotopes
KTH, Skolan för teknikvetenskap (SCI), Fysik, Kärnfysik.ORCID-id: 0000-0002-1406-5695
2016 (engelsk)Inngår i: PHYSICAL REVIEW C, ISSN 2469-9985, Vol. 94, nr 4, artikkel-id 044312Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Even tin isotopes of mass number A = 108-124 are calculated with realistic interactions in the generalized-seniority approximation of the nuclear shell model. For each nucleus, we compute the lowest 10 000 states (5000 of each parity) up to around 8 MeV in excitation energy, by allowing as many as four broken pairs. The lowest 50 eigen energies of each parity are compared with the exact results of the large-scale shell-model calculation. The wave functions of the midshell nuclei show a clear pattern of the stepwise breakup of condensed coherent pairs with increasing excitation energy. We also compute in the canonical ensemble the thermal properties-level density, entropy, and specific heat-in relation to the thermal pairing phase transition.

sted, utgiver, år, opplag, sider
American Physical Society , 2016. Vol. 94, nr 4, artikkel-id 044312
Emneord [en]
Nuclear Shell-Model, Tin Isotopes, Level Densities, Approximation, Transitions
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-196608DOI: 10.1103/PhysRevC.94.044312ISI: 000386170000002Scopus ID: 2-s2.0-84991671465OAI: oai:DiVA.org:kth-196608DiVA, id: diva2:1047680
Forskningsfinansiär
Swedish Research Council, 621-2012-3805 621-2013-4323
Merknad

QC 20161118

Tilgjengelig fra: 2016-11-18 Laget: 2016-11-17 Sist oppdatert: 2016-11-18bibliografisk kontrollert

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