Nov 24 – 27, 2022
Karlsruhe Institute of Technology
Europe/Berlin timezone

Numerical Investigation of Isospin Breaking Effects in 1+1D QED

Nov 27, 2022, 11:00 AM
15m
Gaede-Hörsaal (KIT Campus South)

Gaede-Hörsaal

KIT Campus South

KIT Campus map: https://www.kit.edu/campusplan/ Building: 30.22 Room: 130.1 Address: Campus South, Gaede Hörsaal Coordinates: 49.01265, 8.41044

Speaker

Nuha Chreim (Bergische Universität Wuppertal)

Description

We study the automatic fine-tuning of isospin breaking effects by conformal coalescence found by Howard Georgi in the 2-flavor Schwinger model, i.e. 1+1D QED. Numerical investigation of pion mass splitting on a 1+1 dimensional lattice confirms that the symmetry breaking effects are exponentially suppressed in the fermion mass $m_f$ even for large splittings of $\delta m \approx m_f$. Some results of this work are shown and a brief introduction to lattice field theory is given.

Category Particle / Astroparticle / Cosmology (Theory)

Primary author

Nuha Chreim (Bergische Universität Wuppertal)

Presentation materials