The high-spin structure of 139Sm has been studied through the 110Pd(34S,5n) reaction at beam energies of 150 and 165 MeV. The level scheme has been extended up to an excitation energy of 11.1 MeV and spin 61/2+. A band built on the νi13/2 [660]1/2+ intruder orbital has been established and firmly linked to the known lower-spin levels in the nucleus. The low-lying states of both parities as well as a relatively strong ΔI=1 regular structure observed above spin 27/2- are nicely reproduced by the interacting boson-fermion model with broken pairs.
Excited states in Sm139 described with the interacting boson model plus broken pairs
BRANDOLINI, FRANCO;LUNARDI, SANTO;
1996
Abstract
The high-spin structure of 139Sm has been studied through the 110Pd(34S,5n) reaction at beam energies of 150 and 165 MeV. The level scheme has been extended up to an excitation energy of 11.1 MeV and spin 61/2+. A band built on the νi13/2 [660]1/2+ intruder orbital has been established and firmly linked to the known lower-spin levels in the nucleus. The low-lying states of both parities as well as a relatively strong ΔI=1 regular structure observed above spin 27/2- are nicely reproduced by the interacting boson-fermion model with broken pairs.File in questo prodotto:
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