18 research outputs found
The Pt isotopes: comparing the Interacting Boson Model with Configuration Mixing and the Extended Consistent-Q formalism
The role of intruder configurations in the description of energy spectra and
B(E2) values in the Pt region is analyzed. In particular, we study the
differences between Interacting Boson Model calculations with or without the
inclusion of intruder states in the even Pt nuclei Pt. As a result,
it shows that for the description of a subset of the existing experimental
data, i.e., energy spectra and absolute B(E2) values up to an excitation energy
of about 1.5 MeV, both approaches seem to be equally valid. We explain these
similarities between both model spaces through an appropriate mapping. We point
out the need for a more extensive comparison, encompassing a data set as broad
(and complete) as possible to confront with both theoretical approaches in
order to test the detailed structure of the nuclear wave functions.Comment: To be published in NP
Lifetimes of intruder states in 186Pb, 188Pb and 194Po
Lifetimes of prolate intruder states in 186Pb and 188Pb and oblate intruder states in 194Po have been determined through recoil distance Doppler-shift lifetime measurements. Deformation parameters ofSCOPUS: ar.jinfo:eu-repo/semantics/publishe