Shell-model calculations of two-neutrino double-beta decay rates of $^{48}$Ca with GXPF1A interaction
| dc.creator | Horoi, M. | |
| dc.creator | Stoica, S. | |
| dc.creator | Brown, B. A. | |
| dc.date | 2007-01-25 | |
| dc.date.accessioned | 2026-07-07T11:24:00Z | |
| dc.date.available | 2026-07-07T11:24:00Z | |
| dc.description | The two-neutrino double beta decay matrix elements and half-lives of $^{48}$Ca, are calculated within a shell-model approach for transitions to the ground state and to the $2^+$ first excited state of $^{48}$Ti. We use the full $pf$ model space and the GXPF1A interaction, which was recently proposed to describe the spectroscopic properties of the nuclei in the nuclear mass region A=47-66. Our results are $T_{1/2}(0^{+}\to 0^{+})$ = $3.3\times 10^{19}$ $yr$ and $T_{1/2}(0^{+}\to 2^{+})$ = $8.5\times 10^{23}$ $yr$. The result for the decay to the $^{48}$Ti 0$^+$ ground state is in good agreement with experiment. The half-life for the decay to the 2$^+$ state is two orders of magnitude larger than obtained previously. | |
| dc.description | 6 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0701076 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0701076 | |
| dc.identifier | Phys.Rev.C75:034303,2007 | |
| dc.identifier | doi:10.1103/PhysRevC.75.034303 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/195083 | |
| dc.subject | Nuclear Theory | |
| dc.title | Shell-model calculations of two-neutrino double-beta decay rates of $^{48}$Ca with GXPF1A interaction | |
| dc.type | text |