2008/04/30 by J. Dawson, Detlev Degering, D. Degering +9
Physics and Astronomy · #Atomic and Molecular Physics #Neutrino Physics Research #Nuclear physics research studies #nucl-ex
paper · pdf · doi:10.1103/physrevc.78.035503
published as Phys.Rev.C78:035503,2008 · 6 pages, 7 figures, updated analysis and text
arxiv created 2008/07/29 · openalex publication_date 2008/09/17 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A search for the various double-\ensuremathβ decay modes of 124Sn and 112Sn has been performed on 75 kg days of data. New half-life limits for excited states in 124Sn have been obtained including a lower limit for decay into the first excited 2+ state of 124Te of T1/2>0.87\ifmmode×\else\texttimes\fi1020 yr (90% C.L.) and into the first excited 0+ state of T1/2>1.08\ifmmode×\else\texttimes\fi1020 yr (90% C.L.). Ground state and excited state transitions of 112Sn have also been experimentally explored. A limit for the 2\ensuremathν EC/EC of T1/2>1.8\ifmmode×\else\texttimes\fi1019 yr (90% C.L.) is obtained. The nonobservation of deexcitation \ensuremathγ from the 0+ at 1888.5 keV results in a lower half-life limit on the 0\ensuremathν EC/EC decay of 112Sn of T1/2>0.8\ifmmode×\else\texttimes\fi1019yr (90% C.L.), despite a possible resonant enhancement of the decay rate due to degenerated states.