Crossover from Vibrational to Rotational Collectivity in Heavy Nuclei in the Shell-Model Monte Carlo Approach

dc.contributor.authorÖzen, Cem
dc.contributor.authorAlhassid, Yoram
dc.contributor.authorNakada, Hitoshi
dc.date.accessioned2019-06-27T08:03:43Z
dc.date.available2019-06-27T08:03:43Z
dc.date.issued2013
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Biyoinformatik ve Genetik Bölümüen_US
dc.description.abstractHeavy nuclei exhibit a crossover from vibrational to rotational collectivity as the number of neutrons or protons increases from shell closure towards midshell but the microscopic description of this crossover has been a major challenge. We apply the shell model Monte Carlo approach to families of even-even samarium and neodymium isotopes and identify a microscopic signature of the crossover from vibrational to rotational collectivity in the low-temperature behavior of < J(2)>(T) where J is the total spin and T is the temperature. This signature agrees well with its values extracted from experimental data. We also calculate the state densities of these nuclei and find them to be in very good agreement with experimental data. Finally we define a collective enhancement factor from the ratio of the total state density to the intrinsic state density as calculated in the finite-temperature Hartree-Fock-Bogoliubov approximation. The decay of this enhancement factor with excitation energy is found to correlate with the pairing and shape phase transitions in these nuclei. DOI: 10.1103/PhysRevLett.110.042502en_US]
dc.identifier.citation44
dc.identifier.doi10.1103/PhysRevLett.110.042502en_US
dc.identifier.issn0031-9007en_US
dc.identifier.issn0031-9007
dc.identifier.issue4
dc.identifier.pmid25166157en_US
dc.identifier.scopus2-s2.0-84873026203en_US
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://hdl.handle.net/20.500.12469/832
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.110.042502
dc.identifier.volume110en_US
dc.identifier.wosWOS:000313952000004en_US
dc.identifier.wosqualityQ1
dc.institutionauthorÖzen, Cemen_US
dc.language.isoenen_US
dc.publisherAmer Physical Soc.en_US
dc.relation.journalPhysical Review Lettersen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.titleCrossover from Vibrational to Rotational Collectivity in Heavy Nuclei in the Shell-Model Monte Carlo Approachen_US
dc.typeArticleen_US
dspace.entity.typePublication

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