How Can J Be a Fraction in Spectroscopic Notation?

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SUMMARY

The discussion centers on the spectroscopic notation for a ^3D_X state where X=3/2, specifically addressing the possible values of total angular momentum J. It is established that for LS coupling, J can take values ranging from |L-S| to |L+S|, where L=2 and S=1. The confusion arises from the assertion that J can be a fraction, which is incorrect as J must be an integer or half-integer value. The conclusion is that the problem presented is fundamentally flawed.

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MariusM
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Homework Statement


Consider a ^3D_X where X=3/2 state.

a) What are the possible values of S, L, J and J_z?

Homework Equations


Spectroscopic notation for this LS coupling is ^YL_J where Y=2S+1. J ranges from|L-S| to |L+S|

The Attempt at a Solution


Since L=2 and S must be equal to 1, how can J be a fraction? Shouldn't J be either 1, 2, 3?
 
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You are absolutely right. The problem is incorrect as it stands.
 
Thanks for helping me clarify this!
 

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