Scalar two loop diagram in $\varphi^4$ theory

Question

Could someone explain how, or at least show me a link that explicitly shows the calculation of a two-loop corrections to scalar’s two-point function in $\varphi^4$ theory in the massless limit.

score 9 · Accepted Answer · edited Apr 18 '16 at 05:41

9

This link shows the massive calculation of the sunset diagram which is the name of the diagram you want to look at . The massless limit is simple.

I suspect this question will be closed soon for being too specific and not relating to any physics concepts, though...

edited Apr 18 '16 at 05:41

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answered Oct 01 '13 at 15:25

nervxxx

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Scalar two loop diagram in $\varphi^4$ theory

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