Calculation of Feynman integrals by difference equations

  title={Calculation of Feynman integrals by difference equations},
  author={S. Laporta},
  • S. Laporta
  • Published 2003
Calculating Feynman integrals is not easy, especially when diagrams with many loops are considered. It is by now usual to use integration by parts[1, 2] identities for reducing a given generic Feynman integral to a linear combination of a small number of irreducible integrals, the so-called “master integrals”. For these an explicit calculation is required. In this paper we illustrate a recently developed method of calculation based on the solution of difference equations. An extended exposition… CONTINUE READING

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