135 citations · 893 across the 52 of their papers we have counts for
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Single- and double-beta decay Fermi-transitions in an exactly solvable model
Jorge G. Hirsch, Peter O. Hess, Osvaldo Civitarese
An exactly solvable model suitable for the description of single and double-beta decay processes of the Fermi-type is introduced. The model is equivalent to the exact shell-model t…
Double beta decay and the proton-neutron residual interaction
Jorge G. Hirsch, Peter O. Hess, Osvaldo Civitarese
The validity of the pn-QRPA and -RQRPA descriptions of double beta decay transition amplitudes is analyzed by using an exactly solvable model. It is shown that the collapse of the…
Renormalized QRPA and double beta decay: a critical analysis of double Fermi transitions
Jorge G. Hirsch, Peter O. Hess, Osvaldo Civitarese
The proton-neutron monopole Lipkin model, which exhibits some properties which are relevant for those double beta decay () transitions mediated by the Fermi matrix elements, is…