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(Peskin and Schroeder) Numerator of vertex correction

  1. May 26, 2013 #1
    Hi I am studying qft with worldwidely used text, written by Peskin and Schroeder, An introduction to qft. I have trouble with the calculation of thr numerator on pp. 192. I got additional term ## 2m(z-xy)(mγ^μ - p^μ) ## between spinors, which seems not vanishing. Is there any idea to treat this problem? Thanks in advance
     
    Last edited: May 26, 2013
  2. jcsd
  3. May 28, 2013 #2
    The problem is solved. Maybe I made mistake somewhere.(I calculated hundreds times to exaggerate.) Anyway thanks for reading this annoying post(at least I think I made another trash, but more than 100 people read this)
     
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