@Article{IDSCollaborationLica+Morales2016, author="IDS Collaboration (Lica, R. et al and Morales, A. I.", title="Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129", journal="Physical Review C", year="2016", publisher="Amer Physical Soc", volume="93", number="4", pages="044303--7pp", abstract="The levels in Sn-129 populated from the beta(-) decay of In-129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2(+) state and the 3/2(+) ground state in 129Sn are expected to have configurations dominated by the neutron s(1/2) (l = 0) and d(3/2) (l = 2) single-particle states, respectively. Consequently, these states should be connected by a somewhat slow l-forbidden M1 transition. Using fast-timing spectroscopy we havemeasured the half-life of the 1/2(+) 315.3-keV state, T-1/2 = 19(10) ps, which corresponds to a moderately fast M1 transition. Shell-model calculations using the CD-Bonn effective interaction, with standard effective charges and g factors, predict a 4-ns half-life for this level. We can reconcile the shell-model calculations to the measured T-1/2 value by the renormalization of the M1 effective operator for neutron holes.", optnote="WOS:000373574200003", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2619), last updated on Fri, 29 Apr 2016 14:45:41 +0000", issn="2469-9985", doi="10.1103/PhysRevC.93.044303", opturl="https://doi.org/10.1103/PhysRevC.93.044303", language="English" }