Excited State Transitions in Double Beta Decay: A brief Review

Neutrinoless double beta decays requires lepton number violation and provide an important probe for physics beyond the Standard Model. Nuclear matrix elements (NME) are needed to connect the half-life of the decay with the neutrino mass. The calculation of these NME depends on nuclear models and is...

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Published inEPJ Web of conferences Vol. 93; p. 1025
Main Author Lehnert, Björn
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2015
Subjects
Accessibility
Beta decay
Decomposition
Excitation
Ground state
Isotopes
Leptons
Mathematical models
Neutrinos
Nuclear models
Standard model (particle physics)
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Summary:Neutrinoless double beta decays requires lepton number violation and provide an important probe for physics beyond the Standard Model. Nuclear matrix elements (NME) are needed to connect the half-life of the decay with the neutrino mass. The calculation of these NME depends on nuclear models and is subject to large uncertainties. 0vββ and 2vββ decays can also occur into excited states. Especially the 2vββ excited state transitions are accessible in current experiments and together with the ground state transitions provide an important cross check for nuclear model calculations. This contribution will present the current experimental status of excited state transitions in double beta decay isotopes.
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ISBN:9782759817948
2759817946
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/20159301025