单词 | parity selection rules |
释义 | parity selection rules [`par·ǝd·ē si`lek·shǝn ´rülz] QUANTUM MECHANICS Rules which specify whether or not a change in parity occurs during a given type of transition of an atom, molecule, or nucleus; for example, the Laporte selection rule, or the rule that there is no parity change in an allowed β-decay transition of a nucleus. |
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