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nrqed

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## Main Question or Discussion Point

This is driving me crazy. I am calculating the order g^2 (two loops) vacuum energy in the Wess-Zumino model, and I don't get a cancellation. The tadpole diagrams cancel out but the others don't. I have checked that I get the correct results for the one-loop corrections to the scalar propagators, but I can't find *any* reference that provides some details on that calculation (I have about 15 books on SUSY, including a collection of reprints and of physics reports).

This is the kind of calculation that is probably assigned as a homework in courses in SUSY, so someone here must have done it at some point, or at least coul dpoint me to a reference providing some details (by that I mean the actual expressions for at least some of the diagrams involved). I know what diagrams are supposed to cancel each other, but I can't make it work.

I will provide details of my calculation is anyone asks.

Thanks,

Patrick

This is the kind of calculation that is probably assigned as a homework in courses in SUSY, so someone here must have done it at some point, or at least coul dpoint me to a reference providing some details (by that I mean the actual expressions for at least some of the diagrams involved). I know what diagrams are supposed to cancel each other, but I can't make it work.

I will provide details of my calculation is anyone asks.

Thanks,

Patrick