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Large-scale shell-model calculations on the spectroscopy of N < 126 Pb isotopes
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
2016 (English)In: PHYSICAL REVIEW C, ISSN 2469-9985, Vol. 94, no 1, 014312Article in journal (Refereed) PublishedText
Abstract [en]

Large-scale shell-model calculations are carried out in the model space including neutron-hole orbitals 2p(1/2), 1f(5/2), 2p(3/2), 0i(13/2), 1f(7/2), and 0h(9/2) to study the structure and electromagnetic properties of neutron-deficient Pb isotopes. An optimized effective interaction is used. Good agreement between full shell-model calculations and experimental data is obtained for the spherical states in isotopes Pb194-206. The lighter isotopes are calculated with an importance-truncation approach constructed based on the monopole Hamiltonian. The full shell-model results also agree well with our generalized seniority and nucleon-pair-approximation truncation calculations. The deviations between theory and experiment concerning the excitation energies and electromagnetic properties of low-lying 0(+) and 2(+) excited states and isomeric states may provide a constraint on our understanding of nuclear deformation and intruder configuration in this region.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 94, no 1, 014312
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-190554DOI: 10.1103/PhysRevC.94.014312ISI: 000380108500003ScopusID: 2-s2.0-84979279993OAI: diva2:953401

QC 20160817

Available from: 2016-08-17 Created: 2016-08-12 Last updated: 2016-08-17Bibliographically approved

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