2009/09/01 by A. S. Barabash, Ph. Hubert, A. Nachab +4 · 2 citations
Physics and Astronomy · #Neutrino Physics Research #Nuclear physics research studies #Particle physics theoretical and experimental studies #nucl-ex
paper · pdf · doi:10.1103/physrevc.80.035501
published as Phys.Rev.C80:035501,2009 · 14 pages, 4 figures
openalex publication_date 2009/09/01 · arxiv created 2009/09/07 · openalex created_date 2021/08/30 · openalex updated_date 2026/07/30
Limits on \ensuremathβ+EC (here EC denotes electron capture) and ECEC processes in 112Sn have been obtained using a 380 cm3 HPGe detector and an external source consisting of 53.355 g enriched tin (94.32% of 112Sn). A limit with 90% C.L. on the 112Sn half-life of 4.7\ifmmode×\else\texttimes\fi1020 y for the ECEC(0\ensuremathν) transition to the 03+ excited state in 112Cd (1871.0 keV) has been established. This transition is discussed in the context of a possible enhancement of the decay rate by several orders of magnitude given that the ECEC(0\ensuremathν) process is nearly degenerate with an excited state in the daughter nuclide. Prospects for investigating such a process in future experiments are discussed. The limits on other \ensuremathβ+EC and ECEC processes in 112Sn were obtained on the level of (0.6\text\ensuremath-8.7)\ifmmode×\else\texttimes\fi1020 y at the 90% C.L.