# Methods to calculate scalar two loop vertex diagrams

@inproceedings{Fleischer1997MethodsTC, title={Methods to calculate scalar two loop vertex diagrams}, author={J. Fleischer and M. Tentyukov}, year={1997} }

We present a review of the Bielefeld-Dubna activities on multiloop calculations. In the first contribution of the above authors in these proceedings, we have introduced our system for the automation of evaluation of Feynman diagrams, called DIANA (DIagram ANAlyser). In this contribution methods for the evaluation of scalar two-loop integrals will be discussed. 1 Expansion of three-point functions in terms of external momenta squared Taylor series expansions in terms of one external momentum… Expand

#### 4 Citations

Two-Loop Vertices in Quantum Field Theory: Infrared Convergent Scalar Configurations

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- 2004

Abstract A comprehensive study is performed of general massive, scalar, two-loop Feynman diagrams with three external legs. Algorithms for their numerical evaluation are introduced and discussed,… Expand

First results with a new method for calculating 2-loop box-functions

- Mathematics
- 1999

Abstract. We describe a first attempt to calculate scalar 2-loop box-functions with arbitrary internal masses, applying a novel method proposed in [1]. Four of the eight integrals are accessible to… Expand

Two-loop tensor integrals in quantum field theory ☆

- Physics
- 2004

Abstract 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… Expand

Analytical calculation of two-loop feynman diagrams

- Mathematics, Physics
- 2004

We review the Laporta algorithm for the reduction of scalar integrals to the master integrals and the differential equations technique for their evaluation. We discuss the use of the basis of… Expand

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