%0 Journal Article
%A Fraile Prieto, Luis Mario
%A Mach, Henryk Andrzej
%A Paziy, V.
%A Vedia Fernández, María Victoria
%A otros, ...
%T Half-life of the 15/2(+) state of I-135: A test of E2 seniority relations
%D 2017
%@ 2469-9985
%U https://hdl.handle.net/20.500.14352/17789
%X The half-life of the 15/ 2(1)(+) state of the 3-valence-proton nucleus I-135 has been measured to be 1.74(8) ns using the EXILL-FATIMA mixed array of Ge and LaBr3 detectors. The nuclei were produced following the cold neutron-induced fission of a U-235 target at the PF1B beam line of the Institut Laue-Langevin. The extracted B(E2; 15/2(+) -> 11/2(+)) value enabled a test of seniority relations for the first time between E2 transition rates. Large-scale shell-model calculations were performed for Te-134 and I-135, and reinterpreted in a single-orbit approach. The results show that the two-body component of the E2 operator can be large whereas energy shifts due to the three-body component of the effective interaction are small.
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