Abstract
The ratio of the longitudinal polarization values of90Y and32P was measured at two energies by the method of Møller scattering. The results obtained areP(90Y)/P(32P)=0.992±0.036 at 0.725 MeV electron energy andP(90Y)/P(32P)=0.984±0.030 at 1.0 MeV. For the decay of90Y, polarization- and spectrum shape measurements are discussed in the framework of a formfactor coefficient analysis.
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The authors would like to thank Dr. Bühring, Dipl.-Phys. D. Flothmann and Dipl.-Phys. W. Wiesner for helpful discussions. The critical reading of the manuscript by Dipl.-Phys. H. Klewe-Nebenius is gratefully acknowledged. The Bundesministerium für Bildung und Wissenschaft has supported this investigation by equipment.
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Johannsen, J., Wisshak, K., LÖhken, R. et al. Relative measurements of the longitudinal electron polarization in the β-decay of90Y and32P. Z. Physik 245, 442–450 (1971). https://doi.org/10.1007/BF01395283
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DOI: https://doi.org/10.1007/BF01395283