6533b821fe1ef96bd127ba81
RESEARCH PRODUCT
Two-loop tensor integrals in quantum field theory
Giampiero PassarinoM. PasseraM. PasseraM. PasseraStefano ActisAndrea FerrogliaAndrea FerrogliaS. Ucciratisubject
Tensor contractionPhysicsNuclear and High Energy PhysicsScalar (mathematics)Vertex functionFOS: Physical sciencesTensor fieldsymbols.namesakeHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Quantum mechanicssymbolsFeynman diagramQuantum field theoryScalar fieldMathematical physicsdescription
A comprehensive study is performed of general massive, tensor, two-loop Feynman diagrams with two and three external legs. Reduction to generalized scalar functions is discussed. Integral representations, supporting the same class of smoothness algorithms already employed for the numerical evaluation of ordinary scalar functions, are introduced for each family of diagrams.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-01-01 |