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Two-loop self-energy diagrams worked out with NDIM

Alfredo T. Suzuki, Alexandre G. M. Schmidt

hep-tharXiv:hep-th/9709144

Abstract

In this work we calculate two two-loop massless Feynman integrals pertaining to self-energy diagrams using NDIM (Negative Dimensional Integration Method). We show that the answer we get is 36-fold degenerate. We then consider special cases of exponents for propagators and the outcoming results compared with known ones obtained via traditional methods.

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