Electronic Resource
Springer
The European physical journal
183 (1965), S. 184-194
ISSN:
1434-601X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The beta-gamma directional correlation between the inner beta-group and the following 84.2 keV gamma ray was measured as a function of the energy of the beta-particles. Details of the apparatus and the experimental procedure are given. The results are corrected for the contribution of internal bremsstrahlung and the attenuation of the directional correlation due to the relatively long lifetime of the excited state in Yb170 and the presence of crystal fields. The measurements of these corrections are described in the following paper. The directional correlation results were used with the results of measurements of the longitudinal polarization of the electrons and the shape of the beta-spectrum given by other authors to determine the nuclear matrixelements. The computer calculations showed that there are two physically different types of solutions. One is the so called modified ∫B ij solution which is, however, unsatisfactory in the framework of the Bohr-Mottelson theory. By including higher order nuclear matrix elements we get a solution which is in agreement with this nuclear model.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01380794
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