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I Sunset 2-loops diagram

  1. Oct 20, 2016 #1
    Hi all,

    I'd like to calculate the self energy amplitude of the following sunset diagram (take the middle for instance ) Untitled.png

    can any one help me in distributing the momentum on the internal propagators ?

    Best
     
  2. jcsd
  3. Oct 20, 2016 #2

    vanhees71

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    2016 Award

    Isn't this perhaps a homework problem? How far are you in thinking about it?
     
  4. Oct 20, 2016 #3
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