2–8 Nov 2025
TIFR Mumbai
Asia/Kolkata timezone

Bayesian Analysis and Analytic Continuation of Scattering Amplitudes from Lattice QCD

4 Nov 2025, 17:00
20m
AG66

AG66

Speaker

Miguel Salg (University of Bern)

Description

We present a novel procedure for analyzing the lattice-QCD spectrum via the finite-volume formalism to obtain constraints on multi-hadron scattering amplitudes at both real and complex energies. This approach combines a Bayesian reconstruction of the scattering amplitude on the real axis with Nevanlinna interpolation for analytic continuation to complex-valued energies. The method is non-parametric, inherently accounting for parametrization dependence within the uncertainty. We demonstrate the applicability of this approach using real lattice-QCD data.

Parallel Session (for talks only) Hadronic and nuclear spectrum and interactions

Author

Miguel Salg (University of Bern)

Co-authors

Fernando Romero López (University of Bern) William Jay (Colorado State University)

Presentation materials

There are no materials yet.