Issue |
Europhys. Lett.
Volume 58, Number 5, June 2002
|
|
---|---|---|
Page(s) | 666 - 672 | |
Section | Nuclear physics | |
DOI | https://doi.org/10.1209/epl/i2002-00401-5 | |
Published online | 01 May 2002 |
Ordinary muon capture as a probe of virtual transitions
of
decay
Department of Physics, University of Jyväskylä
P.O. Box 35, FIN-40351, Jyväskylä, Finland
Received:
7
January
2002
Accepted:
13
March
2002
A reliable theoretical description of double-beta-decay processes
needs a possibility to test the involved virtual transitions
against experimental data. Unfortunately, only the lowest virtual
transition can be probed by the traditional electron capture or
-decay experiments. In this article we propose that
calculated amplitudes for many virtual transitions
can be probed by experiments measuring rates of ordinary muon
capture (OMC) to the relevant intermediate states. The first
results from such experiments are expected to appear soon.
As an example, we discuss the
decays of
and
and the corresponding OMC for the
and
nuclei in the framework of the proton-neutron
QRPA with realistic interactions. It is found that the OMC observables,
just like the
-decay amplitudes, strongly depend on
the strength of the particle-particle part of the proton-neutron
interaction.
PACS: 23.40.Bw – Weak-interaction and lepton (including neutrino) aspects / 23.40.Hc – Relation with nuclear matrix elements and nuclear structure / 21.60.Jz – Hartree-Fock and random-phase approximations
© EDP Sciences, 2002
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