- #1
Telemachus
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I think there are different conventions. Once I worked with XPS, and there we used the spin quantum number, the letter for the orbital, and a number for the energy leverl I think, to characterize photoelectrons.
Another notation uses, to characterize an atomic state, the convention ##^{2S+1}L_J##, where S is the total spin, L is the orbital angular momentum (characterized with a capital letter, S,P,D,F, etc), and J is the total angular momentum.
However, now I was trying to interpret this paper: http://adsabs.harvard.edu/full/1983ApJ...275L..19M
There are some atomic transitions involved, where relaxation of an atom delivers a photon, for example, in the abstract it is mentioned ##^5S_2\rightarrow \left.^3P_{2,1}\right.##. I'm not sure on how to interpret this, because if it where ##2S+1=5##, on the right hand side I would have ##S=2##, and as is an S orbital, the orbital angular momentum should be 0, which would give ##J=2##, but it should be ##J=3##. How should I interpret this?EDIT: I think I have realized what is going on. I have forgotten after a while about angular momentum addition in quantum mechanics, I think the issue has to do with that.
Another notation uses, to characterize an atomic state, the convention ##^{2S+1}L_J##, where S is the total spin, L is the orbital angular momentum (characterized with a capital letter, S,P,D,F, etc), and J is the total angular momentum.
However, now I was trying to interpret this paper: http://adsabs.harvard.edu/full/1983ApJ...275L..19M
There are some atomic transitions involved, where relaxation of an atom delivers a photon, for example, in the abstract it is mentioned ##^5S_2\rightarrow \left.^3P_{2,1}\right.##. I'm not sure on how to interpret this, because if it where ##2S+1=5##, on the right hand side I would have ##S=2##, and as is an S orbital, the orbital angular momentum should be 0, which would give ##J=2##, but it should be ##J=3##. How should I interpret this?EDIT: I think I have realized what is going on. I have forgotten after a while about angular momentum addition in quantum mechanics, I think the issue has to do with that.
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