21-25 August 2017
University of Washington, Seattle
US/Pacific timezone

High-precision calculation of the 4-loop contribution to the electron g-2 in QED

21 Aug 2017, 14:25
20m
106 (Alder Hall)

106

Alder Hall

Oral Track 3: Computations in Theoretical Physics: Techniques and Methods Track 3: Computations in Theoretical Physics: Techniques and Methods

Speaker

Dr Stefano Laporta (Dipartimento di Fisica, Universita di Bologna)

Description

In this talk I will describe the results of evaluation up to 1100 digits of precision of the mass-independent contribution of the 891 4-loop Feynman diagrams contributing to the electron g-2 in QED.
I will show the analytical expressions fitted to the high-precision values,
which contain polylogarithms of sixth-root of unity and one-dimensional integrals of products of complete elliptic integrals.
I will discuss also some technical aspects of my program SYS used to perform all the calculations.

Primary author

Dr Stefano Laporta (Dipartimento di Fisica, Universita di Bologna)

Presentation materials

Peer reviewing

Paper