215 citations · 840 across the 29 of their papers we have counts for
30 papers · 1 filter
Efficient contraction of 1-loop N-point tensor integrals
Jochem Fleischer, Janusz Gluza, Marek Gluza +2
A new approach for the reduction of tensor integrals is described. The standard decomposition à la Davydychev is applied. Integrals with higher indices are then expressed in terms…
New developments in PJFry
Jochem Fleischer, Tord Riemann, Valery Yundin
We report on recent progress in numerical evaluation of one loop tensor integrals. A public C++ package PJFry implementing algorithms from arXiv:1009.4436 and its extension to hexa…
New results for algebraic tensor reduction of Feynman integrals
Jochem Fleischer, Tord Riemann, Valery Yundin
We report on some recent developments in algebraic tensor reduction of one-loop Feynman integrals. For 5-point functions, an efficient tensor reduction was worked out recently and…
One-loop tensor Feynman integral reduction with signed minors
J. Fleischer, T. Riemann, V. Yundin
We present an algebraic approach to one-loop tensor integral reduction. The integrals are presented in terms of scalar one- to four-point functions. The reduction is worked out exp…
Calculating contracted tensor Feynman integrals
J. Fleischer, T. Riemann
A recently derived approach to the tensor reduction of 5-point one-loop Feynman integrals expresses the tensor coefficients by scalar 1-point to 4-point Feynman integrals completel…
A complete algebraic reduction of one-loop tensor Feynman integrals
J. Fleischer, T. Riemann
We set up a new, flexible approach for the tensor reduction of one-loop Feynman integrals. The 5-point tensor integrals up to rank R=5 are expressed by 4-point tensor integrals of…