Derivative of self-energy in Peskin & Schroeder 7.31

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Thread starter dosantos86
Start date Apr 1, 2016
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dosantos86

Thread starter
Apr 1, 2016

I can't do the derivative 7.31 at page 221. I try to do the derivative dΣ/dpslash, but my result is different from 7.31
Someone can help me writhing the right derivative?

Thank you in advance!

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strangerep

Science Advisor

Apr 1, 2016

Show your attempt here. (No one can diagnose your problem if you don't show your work.)

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Derivative of self-energy in Peskin & Schroeder 7.31

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