The decay energy of Ba133

Ramaswamy, M. K. ; Skeel, W. L. ; Jastram, P. S. (1960) The decay energy of Ba133 Nuclear Physics, 19 . pp. 299-302. ISSN 0029-5582

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We have redetermined the transition energy for the decay of Ba133 to Cs133 to be 489 keV, confirming Gupta's results, in disagreement with the estimate of 700 keV from beta-decay systematics. The log ft values for the orbital capture transitions to the 437 and 381 keV levels, as well as gamma cascade studies reported previously support a single-particle description for all of the low-lying levels of Cs133, with the possible exception of the one at 158 keV. The doublet splitting between the d3/2 and d5/2 and levels is found to be 300 keV. This splitting and the ground-state quadrupole moment are however not in good agreement with estimates based on a pure single-particle configuration.

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Deposited On:09 May 2011 10:55
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