TY  - JOUR
AU  - Gerst, R. B. et al
AU  - Algora, A.
PY  - 2020
DA  - 2020//
TI  - Prompt and delayed gamma spectroscopy of neutron-rich Kr-94 and observation of a new isomer
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 064323
EP  - 8pp
VL  - 102
IS  - 6
PB  - Amer Physical Soc
AB  - Prompt and delayed gamma-ray spectroscopy of the neutron-rich Kr-94 was performed, as part of the fission campaign at the ALTO facility of the IPN Orsay, using the fast-neutron-induced fission reaction U-238(n, f) in combination with the nu-Ball array, a novel hybrid gamma spectrometer for energy and lifetime measurements. Several new yrast and nonyrast transitions were observed for the first time, extending the previously known level scheme. Additionally, we report on the observation of a new short-lived isomer at 3444 keV with a half-life of 32(3) ns. The analysis of the Nilsson orbitals obtained from Gogny cranked Hartree-Fock-Bogoliubov calculations suggests a (9(-)) spin and an oblate deformation for this isomer corresponding to a two-quasineutron state, indicating an isomeric structure very similar to that of the neighboring isotones Sr-96 and Se-92.
SN  - 2469-9985
UR  - https://doi.org/10.1103/PhysRevC.102.064323
DO  - 10.1103/PhysRevC.102.064323
LA  - English
N1  - WOS:000602816700004
ID  - Gerst+Algora2020
ER  -