24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

QED Corrections to Hadronic Observables

28 Jul 2016, 11:15
45m
Building 32 (EEE) Room 1015 and Building 67 (Nightingale) Room 1027 via video link (University of Southampton, Highfield Campus)

Building 32 (EEE) Room 1015 and Building 67 (Nightingale) Room 1027 via video link

University of Southampton, Highfield Campus

Talk Plenary Session Plenary Session

Speaker

Agostino Patella (CERN and Plymouth U.)

Description

When aiming at a percent precision in hadronic quantities calculated by means of lattice simulations, isospin breaking effects become relevant. These are of two kinds: up/down mass splitting and electromagnetic corrections. In order to properly account for the latter, a consistent formulation of electrically-charged states in finite volume is needed. In fact on a periodic torus Gauss' law and large gauge transformations forbid the propagation of electrically-charged states. In this talk I will review methods that have been used or proposed so far in order to circumvent this problem, while highlighting practical as well as conceptual pros and cons. I will also review and discuss various methods to calculate electromagnetic corrections to hadron masses and decay rates in numerical simulations.

Primary author

Agostino Patella (CERN and Plymouth U.)

Presentation Materials

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