ACAT 2008

Numerical calculations of Multiple Polylog functions

5 Nov 2008, 16:10

25m

Ettore Majorana Foundation and Centre for Scientific Culture

Parallel Talk 3. Computation in Theoretical Physics Methodology of Computations in Theoretical Physics - Session 2

Speaker

Dr Yoshimasa Kurihara (KEK)

Description

Multiple Polylog functions (MPL) often appear as a result of the Feynman parameter integrals in higher order correction in quantum field theory. Numerical evaluation of the MPL with higher depth and weight is necessary for multi-loop calculations. We propose a purely numerical method to evaluate MPL using numerical contour integral in multi-parameter complex-plane. We can obtain values of MPL for any complex variables.

Presentation materials

Slides

MPL(Kurihara).pdf