# Problem 5.9 In Example S . I and Problem 5.5 ( b ) we ignored spin ( or , if you prefer . we assumed the particles are in the same spin state ) ( 2 )…

hello, I need detailed solution for the attached exercise. It is one of the exercises form the new edition of Griffiths in quantum mechanics. The exercise is 5.9 and the rest is the material that the exercise is referring to.

Could you please help me?

Thank you in advance!

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Problem 5.9 In Example S . I and Problem 5.5 ( b ) we ignored spin ( or , if you prefer . weassumed the particles are in the same spin state )( 2 ) Do it now for particles of spin 1/2 . Construct the four lowest – energy configurations , and specify their energies and degeneracies . Suggestion : Use the notationVinz Ism ) , where Vining is defined in Example 5 . I and Ism ) in Section 4 . 4 3 .( b ) Do the same for spin 1 . Hint : First work out the spin – analogs to the spin – 12 sin -glet and triplet configurations , using the Clebach- Gordan coefficients ; note whichof them are symmetric and which antisymmetric .

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