6533b82bfe1ef96bd128e216
RESEARCH PRODUCT
Nuclear matrix elements of double beta decay from beta decay
Jouni Suhonensubject
Nuclear Theory (nucl-th)Nuclear TheoryFOS: Physical sciencesHigh Energy Physics::ExperimentNuclear Experimentdescription
The evaluation of the nuclear matrix elements (NME) of the two-neutrino double beta ($2\nu\beta\beta$) decay and neutrinoless double beta ($0\nu\beta\beta$) decay using the proton-neutron quasiparticle random-phase approximation (pnQRPA) is addressed. In particular, the extraction of a proper value of the proton-neutron particle-particle interaction parameter, $g_{\rm pp}$, of this theory is analyzed in detail. Evidence is shown, that it can be misleading to use the experimental half-life of the $2\nu\beta\beta$ decay to extract a value for $g_{\rm pp}$. Rather, arguments are given in favour of using the available data on single beta decay for this purpose.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-12-16 |