6533b82efe1ef96bd12933f7
RESEARCH PRODUCT
Analysis of the Intermediate-State Contributions to Neutrinoless Double β− Decays
Juhani HyvärinenJouni Suhonensubject
Nuclear and High Energy PhysicsParticle physicsArticle SubjectNuclear Theorydouble beta decaynuclear matrix elements01 natural sciencesneutrinoless double beta decayNuclear physicsMatrix (mathematics)0103 physical sciences010306 general physicsNuclear ExperimentPhysicsta114010308 nuclear & particles physicslcsh:QC1-999MAJORANAExcited stateIsospinQuasiparticleNeutrinoMultipole expansionNucleonlcsh:Physicsdescription
A comprehensive analysis of the structure of the nuclear matrix elements (NMEs) of neutrinoless double beta-minus (0νβ-β-) decays to the0+ground and first excited states is performed in terms of the contributing multipole states in the intermediate nuclei of0νβ-β-transitions. We concentrate on the transitions mediated by the light (l-NMEs) Majorana neutrinos. As nuclear model we use the proton-neutron quasiparticle random-phase approximation (pnQRPA) with a realistic two-nucleon interaction based on the Bonn one-boson-exchangeGmatrix. In the computations we include the appropriate short-range correlations, nucleon form factors, and higher-order nucleonic weak currents and restore the isospin symmetry by the isoscalar-isovector decomposition of the particle-particle proton-neutron interaction parametergpp.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-07-26 | Advances in High Energy Physics |