116 research outputs found
A Short Note on Two-Loop Box Functions
It is shown that the two-loop four-point functions are similar in structure
to the three-point two-loop functions for all mass cases and topologies. The
result is derived by using a rotation to a (+,-,-,+) signature without spoiling
analyticity properties.Comment: 7 pages, UTAS-PHYS-94-23, plain LATE
Three Etudes in QFT
We review QFT from the algebraic structure of its perturbative expansion and
point out three new results.Comment: 6p, contribution to the Int. Congress Math. Phys., Prague 200
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