A search for various double beta decay modes of tin isotopes

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dc.creatorDawson, J.
dc.creatorRamaswamy, R.
dc.creatorReeve, C.
dc.creatorWilson, J. R.
dc.creatorZuber, K.
dc.date2007-09-27
dc.date.accessioned2026-07-07T11:19:36Z
dc.date.available2026-07-07T11:19:36Z
dc.descriptionFor the first time an extensive search for various double beta decay modes of 124Sn and 112Sn has been performed. A total exposure of 43.29 kg.days has been accumulated. New half-life limits of 124Sn into excited states of 124Te have been obtained; the lower half-life limit for the first excited 2+ state at 602.7keV is T_1/2 > 3.1 *10^{18}yrs (90 % CL) and for the first excited 0+ state T_1/2 > 7.7 *10^{18}yrs (90 % CL). For the very first time, ground state and excited state transitions of 112Sn have been experimentally explored. The obtained half-life limits for ECEC and beta+/EC into the first excited 2+ state of 112Cd are both T_1/2 >1.4 *10^{18}yrs (90 % CL). A resonance enhancement in the decay rate for 0nuECEC might be expected for the 0+-state at 1870.9keV due to degeneracy with the 112Sn ground state. No signal was found resulting in a lower half-life limit of T_1/2 > 1.6 *10^{18} yrs (90 % CL) for this decay. As all the excited state searches are based on gamma-lines, all half-life limits apply for both neutrino and neutrino-less modes. Neutrinoless ground state transitions were searched for in the ECEC and beta+/EC mode and a limit of T_1/2 > 1.5 *10^{18} yrs (90 % CL) was obtained for ECEC decays of 112Sn, whilst the beta+/EC mode results are inconclusive.
dc.description19 pages, 11 figures
dc.identifierhttps://arxiv.org/abs/0709.4342
dc.identifierhttp://arxiv.org/abs/0709.4342
dc.identifierNucl.Phys.A799:167-180,2008
dc.identifierdoi:10.1016/j.nuclphysa.2007.11.011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/193738
dc.subjectNuclear Experiment
dc.titleA search for various double beta decay modes of tin isotopes
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