TY  - JOUR
AU  - Phong, V. H. et al
AU  - Agramunt, J.
AU  - Algora, A.
AU  - Domingo-Pardo, C.
AU  - Morales, A. I.
AU  - Tain, J. L.
AU  - Tarifeño-Saldivia, A.
AU  - Tolosa-Delgado, A.
PY  - 2019
DA  - 2019//
TI  - Observation of a μs isomer in In-134(49)85: Proton-neutron coupling "southeast" of Sn-132(50)82
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 011302
EP  - 6pp
VL  - 100
IS  - 1
PB  - Amer Physical Soc
AB  - We report on the observation of a microsecond isomeric state in the single-proton-hole, three-neutron-particle nucleus In-134. The nuclei of interest were produced by in-flight fission of a U-238 beam at the Radioactive Isotope Beam Factory at RIKEN. The isomer depopulates through a gamma ray of energy 56.7(1) keV and with a half-life of T-1/2 = 3.5(4) μs. Based on the comparison with shell-model calculations, we interpret the isomer as the I-pi = 5(-) member of the pi 0g(9/2)(-1) circle times nu 1f(7/2)(3) multiplet, decaying to the I-pi = 7(-) ground state with a reduced-transition probability of B(E2; 5(-) -> 7(-)) = 0.53(6) W.u. Observation of this isomer, and lack of evidence in the current work for a I-pi = 5(-) isomer decay in In-132, provides a benchmark of the proton-neutron interaction in the region of the nuclear chart "southeast" of Sn-132, where experimental information on excited states is sparse.
SN  - 2469-9985
UR  - https://doi.org/10.1103/PhysRevC.100.011302
DO  - 10.1103/PhysRevC.100.011302
LA  - English
N1  - WOS:000477895400001
ID  - Phong_etal2019
ER  -