SOME ANALYTIC PROPERTIES OF THE VERTEX FUNCTION

@article{Oehme1960SOMEAP,
  title={SOME ANALYTIC PROPERTIES OF THE VERTEX FUNCTION},
  author={R. Oehme},
  journal={Physical Review},
  year={1960},
  volume={117},
  pages={1151-1159}
}
  • R. Oehme
  • Published 1960
  • Physics
  • Physical Review
  • The absorptive part of the vertex function F[k , 2 p ' 2 (k .. p) ] is an analytic function of the mass variables 2 2 k and p On the basis of causality and the spectral conditions, the region of regularity D(cr) of the absorptive ( 2 2 2) part A k , p , o is obtained for fixed values of o ~ c • The boundary of D(o) is calculated explicitly for the case k = p , which is of interest in connection with form factors. By the use of examples based upon perturb~tion theory, it is shown that this… CONTINUE READING
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