Non-Standard Fermion Propagators from Conformal Field Theory

Details Non-Standard Fermion Propagators from Conformal Field Theory Non-Standard Fermion Propagators from Conformal Field Theory

1994-08-04

arxiv.org/abs/hep-th/9408024v1

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, Latex, LMU-TPW 94-10

Scientific paper

It is shown that Weyl spinors in 4D Minkowski space are composed of primary fields of half-integer conformal weights. This yields representations of fermionic 2-point functions in terms of correlators of primary fields with a factorized transformation behavior under the Lorentz group. I employ this observation to determine the general structure of the corresponding Lorentz covariant correlators by methods similar to the methods employed in conformal field theory to determine 2- and 3-point functions of primary fields. In particular, the chiral symmetry breaking terms resemble fermionic 2-point functions of 2D CFT up to a function of the product of momenta. The construction also permits for the formulation of covariant meromorphy constraints on spinors in 3+1 dimensions.

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