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Paschen notation in atomic spectroscopy

  1. Nov 21, 2014 #1
    I was trying to understand electronic excitation in Xenon. Most of the research journals are denoting different excitation levels in terms of Paschen notation, which i think, is generally used to represent excited states of inert gases. Can someone please explain how to use this paschen notation ?? Kindly help!!!!!
  2. jcsd
  3. Nov 24, 2014 #2


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    Staff: Mentor

    http://archive.today/pwve [Broken]
    Last edited by a moderator: May 7, 2017
  4. Jan 9, 2015 #3

    Quantum Defect

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    Labeling of states in the heavier rare gases often use a different notation, because j-j coupling is a better method to use to describe the states. Here, you will see things like:

    Xe 6s[3/2]_1^o --> excited electron is nominally a 6s electron (j=1/2). The Xe+ p^5 ion core has j=3/2. The _1 subscript outside the bracket indicates that the j=1/2 of the excited electron and the j=3/2 of the core combine to give a state with J=1. I think that C. E. Moore discusses this nomenclature in her famous tables ... it has been a while, but that is where I believe that I learned about these.

    Condon & Shortley "The Theory of Atomic Spectra" have some good discussion of the energy levels of the heavier rare gases.
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