Abstract
The γγ ande KL− γ directional correlations have been measured for the (898–1836) keV cascade in88Sr following the decay of88Y. The observed correlation coefficients areA 22(γγ)=−0.0784±0.0042 andA 22(e KL− γ)=0.0102±0.0046. The γγ experiment is consistent with a mixing ratio δ(γ)=0.009±0.005 for the 898 keV transition. Using the result of thee KL− γ experiment the most probable value of the ratio of the penetration matrix element to the normal γ-ray matrix element was determined to be η=0.03±0.30 showing a normal conversion process. This penetration parameter agrees with a hindrance factorH W(E1)=2.1 · 10−3 for theE1 transition.
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Heß, A., Schneider, H. Winkelkorrelationsmessungen an88Sr. Z. Physik 262, 231–238 (1973). https://doi.org/10.1007/BF01391839
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DOI: https://doi.org/10.1007/BF01391839