How do we calculate degree of forbiddenness? Can someone do an example to show me?
Forbiddenness, or rather forbiddance is the state of being forbidden and does not come in degrees - it is an "absolute" like "only". Cheers, Jim
Used in nuclear physics "first forbidden", "second forbidden".etc. refers to by how much a selection rule is broken. Usually if the selection rule is delta L=1, then first forbidden means a transition where delta L=2 or 0, and third is where delta L=3.
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