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Vertex correction

  1. Oct 30, 2009 #1
    do anyone can help to solve this vertex correction for W boson?
    [tex]\frac{-ieg^{2}}{8(2\pi)^{4}}[/tex][tex]\int d^{4}k[/tex][tex]\gamma^{\alpha}[/tex](1-[tex]\gamma_{5})[/tex](p'[tex]_{\mu}[/tex][tex]\gamma_{\mu}[/tex]-k[tex]_{\mu}[/tex][tex]\gamma_{\mu}[/tex]+m)[tex]\gamma^{\tau}[/tex](p[tex]_{\mu}[/tex][tex]\gamma_{\mu}[/tex]-k[tex]_{\mu}[/tex][tex]\gamma_{\mu}[/tex]+m)[tex]\gamma^{\beta}[/tex](1-[tex]\gamma_{5})[/tex](-g[tex]_{\alpha\beta}[/tex]+[tex]\frac{k_{\alpha}k_{\beta}}{m^{2}_{W}}[/tex]+i[tex]\epsilon[/tex])/[(p'-k)2-m2+i[tex]\epsilon[/tex]][(p-k)2-m2+i[tex]\epsilon[/tex]][k2-m[tex]^{2}_{W}[/tex]+i[tex]\epsilon[/tex]]
     
  2. jcsd
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