6533b857fe1ef96bd12b38ac
RESEARCH PRODUCT
Theory of double beta decay
Jouni Suhonensubject
Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsDouble beta decayQuasiparticleMatrix elementBeta (velocity)Flory–Huggins solution theoryNuclear ExperimentMultipole expansiondescription
Basic features of the two-neutrino double beta ( 2 ν β β ) decay and neutrinoless double beta ( 0 ν β β ) decay are discussed. A short review of the most important nuclear models, used to describe the ββ decay, is given. A deeper survey of the nuclear matrix elements, related to the above-mentioned decay modes, is performed using the proton-neutron quasiparticle random-phase approximation (pnQRPA). In particular, the extraction of a proper value of the proton-neutron particle-particle interaction parameter in this theory is addressed. The relevance of different multipoles in the multipole decomposition of the 0 ν β β matrix element is also discussed in the pnQRPA framework.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2005-04-01 | Nuclear Physics A |