of the data Up: Double
beta decay Previous: Matrix
Comparison with predictions for
Quite firm predictions based on QRPA for
half lives in various nuclei have been obtained by a group at Caltech.
The agreement between measured and calculated half-lives in 76Ge,
82Se, 100Mo, in which
has been observed directly, is quite good, within a factor 2 or 3. The
agreement is also reasonable in 128Te and 130Te,
for which geochemical data are available. The Strasbourg-Madrid group has
performed realistic shell model calculations for 76Ge and 82Se.
They too are in reasonable agreement with measured values. Shell model
predictions for 48Ca, a nucleus which is particularly simple
to describe, also reproduce well the measured value.