Shell-model calculation for two-neutrino double beta decay of Ca48

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dc.contributor.authorZhao L.
dc.contributor.authorBrown B.A.
dc.contributor.authorRichter W.A.
dc.date.accessioned2011-05-15T16:00:12Z
dc.date.available2011-05-15T16:00:12Z
dc.date.issued1990
dc.description.abstractThe 2 decay matrix element of Ca48 has been studied in a large basis shell-model space. The theoretical and experimental - and + spectra and their relation to 21/2 are discussed. A new empirical effective interaction is found to give the best agreement to - and + spectra with the effective Gamow-Teller operator Ìt=0.77t. The predicted T1/2=1.9×1019 yr differs by a factor of 2 from the present experimental limit of T1/2>3.6×1019 yr. We also compare the matrix elements obtained at various levels of the truncation in the shell-model space. © 1990 The American Physical Society.
dc.description.versionArticle
dc.identifier.citationPhysical Review C
dc.identifier.citation42
dc.identifier.citation3
dc.identifier.issn5562813
dc.identifier.other10.1103/PhysRevC.42.1120
dc.identifier.urihttp://hdl.handle.net/10019.1/11584
dc.titleShell-model calculation for two-neutrino double beta decay of Ca48
dc.typeArticle
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