5-10 August 2019
Westin Harbour Castle, Toronto Canada
America/Toronto timezone

Dispersive Two-Loop Calculations: Theory and Applications

8 Aug 2019, 11:30
12m
Parallel Session talk Outreach & Theory (Parallel)

Speaker

Prof. Aleksandrs Aleksejevs (Memorial University of Newfoundland)

Summary

As the new-generation precision experiments such as MOLLER and P2 look for physics beyond Standard Model, it is becoming increasingly important to evaluate the higher-order electroweak radiative corrections to a sub-percent level of uncertainty. However, due to propagators with different masses and higher-order tensor Feynman integrals, the two-loop calculations involving thousands of Feynman graphs becomes a demanding task requiring novel computational approaches. In this talk, we describe our dispersive sub-loop insertion approach and develop two-loop integrals using two-point functions basis which is applicable to wide range of processes.

Primary author

Prof. Aleksandrs Aleksejevs (Memorial University of Newfoundland)

Co-author

Prof. Svetlana Barkanova (Grenfell Campus of Memorial University)

Presentation Materials