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Electronic Transitions in Protium vs. Deuterium

  1. Apr 10, 2012 #1
    What causes the differences between the atomic spectra of deuterium and the atomic spectra of protium? Are there any important considerations other than the difference in the spin of the nucleus? Also how exactly do the selection rules play out differently?
     
  2. jcsd
  3. Apr 12, 2012 #2

    mfb

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    Staff: Mentor

    I would expect that the main difference comes from the different reduced mass, which shifts everything by ~me/(2mp) or about 1/4000.
    The hyperfine structure can look different, too, of course.
     
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