6533b86efe1ef96bd12cca09
RESEARCH PRODUCT
Supersymmetry and neutrinoless double beta decay.
Hans Volker Klapdor-kleingrothausM. HirschS.g. Kovalenkosubject
QuarkPhysicsNuclear and High Energy PhysicsParticle physicsSuperpotentialHigh Energy Physics::PhenomenologyForm factor (quantum field theory)FOS: Physical sciencesSuperpartnerFísicaSupersymmetryStandard ModelHigh Energy Physics - PhenomenologyHigh Energy Physics::TheoryHigh Energy Physics - Phenomenology (hep-ph)Double beta decayHigh Energy Physics::ExperimentMinimal Supersymmetric Standard Modeldescription
Neutrinoless double beta decay ($\znbb$) induced by superparticle exchange is investigated. Such a supersymmetric (SUSY) mechanism of $\znbb$ decay arises within SUSY theories with R-parity non-conservation (\rp). We consider the minimal supersymmetric standard model (MSSM) with explicit \rp terms in the superpotential (\rp MSSM). The decay rate for the SUSY mechanism of $\znbb$ decay is calculated. Numerical values for nuclear matrix elements for the experimentally most interesting isotopes are calculated within pn-QRPA. Constraints on the \rp MSSM parameter space are extracted from current experimental half-life limits. The most stringent limits are derived from data on $^{76}$Ge. It is shown that these constraints are more stringent than those from other low-energy processes and are competitive to or even more stringent than constraints expected from accelerator searches.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-02-01 | Physical review. D, Particles and fields |