2010

A recursive approach to the reduction of tensor Feynman integrals

Diakonidis, Theodoros, Fleischer, Jochem, Riemann, Tord et al.

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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