bn:02797554n
Noun Concept
Categories: All articles needing additional references, Nuclear physics, Quantum chemistry, Spectroscopy, Astronomical spectroscopy
EN
forbidden mechanism  forbidden line  forbidden lines  forbidden transition  Quantum-mechanically forbidden
EN
In spectroscopy, a forbidden mechanism is a spectral line associated with absorption or emission of photons by atomic nuclei, atoms, or molecules which undergo a transition that is not allowed by a particular selection rule but is allowed if the approximation associated with that rule is not made. Wikipedia
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EN
In spectroscopy, a forbidden mechanism is a spectral line associated with absorption or emission of photons by atomic nuclei, atoms, or molecules which undergo a transition that is not allowed by a particular selection rule but is allowed if the approximation associated with that rule is not made. Wikipedia