Two-loop self-energy diagrams worked out with NDIM
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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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European Physical Journal C, v. 5, n. 1, p. 175-179, 1998.
