- #1
kvothe18
- 2
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Does anyone know how can you prove that the mean value of the tensor operator S12 in all directions r is zero?
S12 : http://prntscr.com/j3gn40
where s1, s2 are the spin operators of two nucleons.
S12 : http://prntscr.com/j3gn40
where s1, s2 are the spin operators of two nucleons.