25–27 Mar 2026
Asia/Nicosia timezone

Pole trajectories of the $\Lambda(1380)$ and $\Lambda(1405)$ resonances from the combination of lattice and experimental data

26 Mar 2026, 12:30
30m

Speaker

Ferenc Pittler (The Cyprus Institute)

Description

We perform a global analysis of negative-strangeness meson–baryon scattering using lattice QCD
and experimental data within the Chiral Unitary Approach. The lattice data are analyzed via the
Lüscher formalism, including coupled channels. Systematic uncertainties from data limitations, ambiguities, and framework dependence are quantified using statistical tools. We present pole positions
for isoscalar resonances with full uncertainty estimates and provide predictions for isovector states,
which remain less constrained.

Authors

Dr Bryan McKinnon (University of Glasgow) Prof. David Ireland (University of Glasgow) Ferenc Pittler (The Cyprus Institute) Dr Maxim Mai (University of Bern) Peter Hurck (University of Bonn) Ryan Ferguson (University of Glasgow) Prof. Ulf-G. Meißner (Helmholtz-Institut f¨ur Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universitat Bonn)

Presentation materials