TY - JOUR
T1 - Charge and transition densities of samarium isotopes in the interacting boson modei
AU - Moinester, M. A.
AU - Alster, J.
AU - Azuelos, G.
AU - Dieperink, A. E.L.
N1 - Funding Information:
' Supported in part by the US-Israel Binational Science Foundation (BSF), Jerusalem, Israel . * Address for 1981/82: TRIiTMF. ** Mailing address : TRILTMF, 4004 Wesbrook Mall, Vancouver, BC, Canada V6T 2A3 . 264
PY - 1982/7/26
Y1 - 1982/7/26
N2 - The interacting boson approximation (IBA) model has been used to interpret the ground-state charge distributions and lowest 2+ transition charge densities of the even samarium isotopes for A = 144-154. Phenomenological boson transition densities associated with the nucleons comprising the s- and d-bosons of the IBA were determined via a least squares fit analysis of charge and transition densities in the Sm isotopes. The application of these boson transition densities to higher excited 0+ and 2+ states of Sm, and to 0+ and 2+ transitions in neighboring nuclei, such as Nd and Gd, is described. IBA predictions for the transition densities of the three lowest 2+ levels of 154Gd are given and compared to theoretical transition densities based on Hartree-Fock calculations. The deduced quadrupole boson transition densities are in fair agreement with densities derived previously from 150Nd data. It is also shown how certain moments of the best fit boson transition densities can simply and successfully describe rms radii, isomer shifts, B(E2) strengths, and transition radii for the Sm isotopes.
AB - The interacting boson approximation (IBA) model has been used to interpret the ground-state charge distributions and lowest 2+ transition charge densities of the even samarium isotopes for A = 144-154. Phenomenological boson transition densities associated with the nucleons comprising the s- and d-bosons of the IBA were determined via a least squares fit analysis of charge and transition densities in the Sm isotopes. The application of these boson transition densities to higher excited 0+ and 2+ states of Sm, and to 0+ and 2+ transitions in neighboring nuclei, such as Nd and Gd, is described. IBA predictions for the transition densities of the three lowest 2+ levels of 154Gd are given and compared to theoretical transition densities based on Hartree-Fock calculations. The deduced quadrupole boson transition densities are in fair agreement with densities derived previously from 150Nd data. It is also shown how certain moments of the best fit boson transition densities can simply and successfully describe rms radii, isomer shifts, B(E2) strengths, and transition radii for the Sm isotopes.
UR - http://www.scopus.com/inward/record.url?scp=4143122592&partnerID=8YFLogxK
U2 - 10.1016/0375-9474(82)90452-3
DO - 10.1016/0375-9474(82)90452-3
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AN - SCOPUS:4143122592
SN - 0375-9474
VL - 383
SP - 264
EP - 284
JO - Nuclear Physics A
JF - Nuclear Physics A
IS - 2
ER -