Structural evolution in Pt isotopes with the interacting boson model Hamiltonian derived from the Gogny energy density functional
Entity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2011-01-25Citation
10.1103/PhysRevC.83.014309
Physics review C 83.1 (2011): 014309
ISSN
0556-2813 (print); 1089-490X (online)DOI
10.1103/PhysRevC.83.014309Funded by
This work was supported in part by a Grant-in-Aid for Scientific Research (A) 20244022 and by a Grant-in-Aid from JSPS (No. 217368). K.N. is supported by a JSPS program. The work of L.M.R and P.S was supported by MICINN (Spain) under research Grants No. FIS2008–01301, No. FPA2009-08958, and No. FIS2009-07277, as well as by Consolider-Ingenio 2010 Programs CPAN CSD2007-00042 and MULTIDARK CSD2009-00064. R.R. acknowledges the support received within the framework of the FIDIPRO program (Academy of Finland and University of Jyvaskyla¨)Project
Gobierno de España. FIS2008–01301; Gobierno de España. FPA2009-08958; Gobierno de España. FIS2009-07277; Gobierno de España. CSD2007-00042; Gobierno de España. CSD2009-00064Editor's Version
http://dx.doi.org/10.1103/PhysRevC.83.014309Subjects
FísicaRights
© 2011 American Physical SocietyAbstract
Spectroscopic calculations are carried out for the description of the shape/phase transition in Pt nuclei in terms of the interacting boson model (IBM) Hamiltonian derived from (constrained) Hartree-Fock-Bogoliubov (HFB) calculations with the finite range and density-dependent Gogny-D1S energy density functional. Assuming that the many-nucleon driven dynamics of nuclear surface deformation can be simulated by effective bosonic degrees of freedom, the Gogny-D1S potential energy surface (PES) with quadrupole degrees of freedom is mapped onto the corresponding PES of the IBM. By using this mapping procedure, the parameters of the IBM Hamiltonian, relevant to the low-lying quadrupole collective states, are derived as functions of the number of valence nucleons. Merits of both Gogny-HFB and IBM approaches are utilized so that the spectra and the wave functions in the laboratory system are calculated precisely. The experimental low-lying spectra of both ground-state and sideband levels are well reproduced. From the systematics of the calculated spectra and the reduced E2 transition probabilities B(E2), the prolate-to-oblate shape/phase transition is shown to take place quite smoothly as a function of neutron number N in the considered Pt isotopic chain, for which the γ softness plays an essential role. All of these spectroscopic observables behave consistently with the relevant PES and the derived parameters of the IBM Hamiltonian as functions of N. Spectroscopic predictions are also made for those nuclei that do not have enough experimental E2 data
Files in this item
Google Scholar:Nomura, K.
-
Otsuka, T.
-
Rodríguez-Guzmán, R.
-
Robledo Martín, Luis Miguel
-
Sarriguren, P.
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.