English

A solution for tensor reduction of one-loop N-point functions with N >= 6

High Energy Physics - Phenomenology 2015-06-03 v1

Abstract

Collisions at the LHC produce many-particle final states, and for precise predictions the one-loop NN-point corrections are needed. We study here the tensor reduction for Feynman integrals with N6N \ge 6. A general, recursive solution by Binoth et al. expresses NN-point Feynman integrals of rank RR in terms of (N1)(N-1)-point Feynman integrals of rank (R1)(R-1) (for N6N\ge 6). We show that the coefficients can be obtained analytically from suitable representations of the metric tensor. Contractions of the tensor integrals with external momenta can be efficiently expressed as well. We consider our approach particularly well suited for automatization.

Keywords

Cite

@article{arxiv.1111.5821,
  title  = {A solution for tensor reduction of one-loop N-point functions with N >= 6},
  author = {J. Fleischer and T. Riemann},
  journal= {arXiv preprint arXiv:1111.5821},
  year   = {2015}
}

Comments

11 pages

R2 v1 2026-06-21T19:41:10.568Z