Theory of spin dependence at very high energies. [Review, S matrix] Page: 6 of 13
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-5-
vertex. We do not exclude however, interesting effects for trans-
verse polarized fermions. There is the effect (4) above, as well as
the possibility of interchange effects [e.g. the cross diagram to
Fig. 1] causing non-zero dependence on the transverse spins.
As a final comment on spinology, for those of you who are fam-
iliar with the pp - pp Jacob and Wick helicity amplitudes4,5
2= <03 = <+- 14+->
rp4 = <+-I -+(14)
I quote their value, for the Feynman diagram
overall numerical constant
=of Fig. 1, up to an
u
3 = - t
4= 0
5= 0(15a)
If the crossed graph is added, recalling that the fermions are iden-
tical, the full expressions are
1 = s( +
021 ]
a2(15b)
_t
4 ua5=
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Thomas, G. H. Theory of spin dependence at very high energies. [Review, S matrix], article, January 1, 1977; Illinois. (https://digital.library.unt.edu/ark:/67531/metadc1059264/m1/6/: accessed July 16, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.