Power-enhanced QED corrections in flavour physics

Particle Physics Theory seminar

Power-enhanced QED corrections in flavour physics

  • Event time: 2:00pm
  • Event date: 6th May 2020
  • Speaker: Robert Szafron (CERN)
  • Location: https://eu.bbcollab.com/guest/ef4ef27377da4f9f84f740b49c28509e

Event details

QED effects in flavour physics are ubiquitous but still not well-understood due to the intrinsically non-perturbative nature of QCD bound states. 
I will discuss how modern methods based on soft-collinear effective field theory can be applied to understand QED corrections in QCD bound states. 
Using the example of the leptonic decay of the strange B-meson, I will show how non-local QED effects can lead to power-enhanced corrections 
in the heavy quark expansion and how the QED corrections can be systematically resummed.

About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..

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