6533b861fe1ef96bd12c4224
RESEARCH PRODUCT
Effects of orbital occupancies and spin–orbit partners on -decay rates
Jouni SuhonenOsvaldo Civitaresesubject
PhysicsNuclear and High Energy PhysicsDouble beta decayOrbit (dynamics)QuasiparticleNuclear forceBeta (velocity)Atomic physicsNuclear ExperimentSpin (physics)Space (mathematics)description
Abstract Neutrinoless double beta ( 0 ν β β ) decay of the 76Ge, 82Se, 128Te, 130Te and 136Xe nuclei is discussed in terms of the associated nuclear matrix element (NME). The effects of the size of the single-particle model space and the occupancies of individual orbits on the NME are discussed by using the proton–neutron quasiparticle random-phase approximation (pnQRPA) with effective, G-matrix-derived nuclear forces. It is found that only in some cases the orbital occupancies play a decisive role for the size of the NME, whereas the inclusion of all the spin–orbit partners is essential to achieve a NME of reasonable quality. The obtained results are compared with published results of other models.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-12-01 | Nuclear Physics A |