(a) Pick half a dozen or so typical examples of 2+ + 0’ transitions from the
first excited states of “rotational” nuclei, 150 -= A < 190. (Use standard
reference works for nuclear spectroscopic data.) Compute the ratio between
the observed y decay rate and the corresponding Weisskopf estimate. Be
sure to correct the measured lifetimes for internal conversion if necessary.
(b) Repeat for “vibrational” nuclei, 60 < A < 150, excluding cases at
closed shells. (c) Draw any apparent conclusion about the difference between “rotational” and “ vibrational’’ y transitions.
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2020-04-13T09:58:43-0400
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