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

Direct numerical computation and its application to the higher-order radiative corrections

22 Aug 2017, 16:45
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

Kiyoshi Kato (Kogakuin University)

Description

The direct computation method(DCM) is developed to calculate the multi-loop amplitude for general masses and external momenta. The ultraviolet divergence is under control in dimensional regularization.
We discuss the following topics in this presentation.
From the last report in ACAT2016, we have extended the applicability of DCM to several scalar multi-loop integrals.
Also it will be shown that some 2-loop self-energy function can be calculated in the series of epsilon though DCM.

Primary authors

Kiyoshi Kato (Kogakuin University) Elise de Doncker (Western Michigan University) Dr Tadashi Ishikawa (KEK) Fukuko YUASA (KEK)

Presentation materials

Peer reviewing

Paper