6533b834fe1ef96bd129cec1
RESEARCH PRODUCT
Nuclear physics of non-standard 0νβ β-decay
L. GrafJ. KotilaF. F. DeppischF. Iachellosubject
PhysicsParticle physicsnuclear physicsDirac (video compression format)Beta (velocity)Interacting boson modelparticle symmetryhiukkasfysiikkaWave functionydinfysiikkaLepton numbernuclear structure modelsdescription
The observation neutrinoless double beta (0νβ β) decay remains crucial for understanding lepton number violation. In view of the difficulties to observe the mass mechanism of 0νβ β-decay, investigations of other mechanisms are in order. These non-standard mechanisms can be divided into short-range and long-range mechanisms. Recently, we have started systematic study for all possible short-range and long-range non-standard mechanisms. The aim of this study is twofold: I) to provide explicit formulas for the nuclear matrix elements (NMEs) and phase-space factors (PSFs) from which the decay rate for one or a combination of mechanisms operating at the same time can be calculated; II) to provide numerical values of the NMEs and PSFs obtained by making use of the microscopic interacting boson model (IBM-2) for the NMEs and of exact Dirac wave functions for the PSFs. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-01-01 |