Terms and
Variables in SG SWEP
In general, VNN(x) = VC + VT+ VLS + VLL
* The significance of
the LS term, specially for odd triplet states was known as early as 1957. P. Signell and R.
Marshk, Phys Rev. 106 ,837 (1957); Phys Rev. Lett 109,1229 (1958)
