Understand
We describe a new, convenient, recursive tensor integral reduction scheme for one-loop $n$-point Feynman integrals.
- The reduction is based on the algebraic Davydychev-Tarasov formalism where the tensors are represented by scalars with shifted dimensions and indices, and then expressed by conventional scalars with generalized recurrence relations.
- The scheme is worked out explicitly for up to $n=6$ external legs and for tensor ranks $R\leq n$.
- The tensors are represented by scalar one- to four-point functions in $d$ dimensions.
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