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Half-life and spin of 60Mn^g

S. N. Liddick·P. F. Mantica·B. A. Brown·M. P. Carpenter·A. D. Davies·M. Horoi·R. V. F. Janssens·A. C. Morton·W. F. Mueller·J. Pavan·H. Schatz·A. Stolz·S. L. Tabor·B. E. Tomlin·M. Wiedeking
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Abstract

A value of 0.28 +/- 0.02 s has been deduced for the half-life of the ground state of 60Mn, in sharp contrast to the previously adopted value of 51 +/- 6 s. Access to the low-spin 60Mn ground state was accomplished via beta decay of the 0+ 60Cr parent nuclide. New, low-energy states in 60Mn have been identified from beta-delayed gamma-ray spectroscopy. The new, shorter half-life of 60Mn^g is not suggestive of isospin forbidden beta decay, and new spin and parity assignments of 1+ and 4+ have been adopted for the ground and isomeric beta-decaying states, respectively, of 60Mn.

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S. N. Liddick, P. F. Mantica, B. A. Brown, M. P. Carpenter, A. D. Davies, M. Horoi, R. V. F. Janssens, A. C. Morton, W. F. Mueller, J. Pavan, H. Schatz, A. Stolz, S. L. Tabor, B. E. Tomlin, M. Wiedeking. 2006-04-06. Half-life and spin of 60Mn^g. https://doi.org/10.1103/physrevc.73.044322

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