Abstract
Theβ-α. angular correlationW(Θ)=1+a cosΘ+cos2 Θ of the decay of Li8 was measured for average electron energies ofE β ≈5 MeV, 11 MeV and 12 MeV. The experiment yields an anisotropyA=(0·0036±0·0011)·E β (MeV)−1. This result is in good agreement with the results of the other groups. The measurements were performed in a counting chamber separated from the activation room simultaneously for two sealer positionsΘ=90° and 180°. The result is discussed in terms of the CVC-theory, taking into account the second forbidden Fermi-matrixelements (‖M1‖) and (‖E2‖).
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Herrn Professor Dr. R.Fleischmann danken wir herzlich dafür, daß er es ermöglicht hat, diese Arbeit in seinem Institut durchzuführen.
Die Mittel zur Durchführung dieser Arbeit wurden von der Deutschen Forschungsgemeinschaft bereitgestellt.
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Ischenko, G., Seyboth, D. & Wegener, H. Messung der Anisotropie der β-α-Winkelverteilung beim Zerfall des Li8 . Z. Physik 175, 422–429 (1963). https://doi.org/10.1007/BF01375252
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DOI: https://doi.org/10.1007/BF01375252