Nuclear Physics of Double Beta Decay
| dc.creator | Vogel, Petr | |
| dc.date | 1999-04-23 | |
| dc.date.accessioned | 2026-07-07T05:43:04Z | |
| dc.date.available | 2026-07-07T05:43:04Z | |
| dc.description | Study of the neutrinoless $ββ$ decay allows us to put a stringent limit on the effective neutrino Majorana mass, a quantity of fundamental importance. To test our ability to evaluate the nuclear matrix elements that govern the decay rate, it is desirable to be able to describe the allowed two-neutrino decay. It is argued that only low-lying virtual intermediate states are important for that process, and thus it appears that the large-scale shell model evaluation, free from the various difficulties of QRPA, is the preferred method. In the $0ν$ decay, it is shown that there is a substantial cancellation between the paired and broken pair pieces of the nuclear wave function. Thus, despite the popular claim to the contrary, one expects that the $0ν$ rate is also sensitive to the details of nuclear structure. This is reflected in the spread of the theoretical values, leading to the uncertainty of about factor 2-3 in the deduced $<m_ν>$ limit. Finally, brief comment about the $0ν$ decay with the exchange of a very heavy neutrino are made. | |
| dc.description | Invited talk at the Workshop on Beta-Decay, Strasbourg, France, March 1999 | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9904065 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9904065 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/83167 | |
| dc.subject | Nuclear Theory | |
| dc.title | Nuclear Physics of Double Beta Decay | |
| dc.type | text |