[Theory-seminars] Theory Seminar TODAY

[Pia Jones Petrak]

Hey everyone,

We will be having a remote Theory seminar *today at 1pm*. Even though 
it's remote *please join us in L102 or on Zoom*. Below is the info

Speaker: Miguel Salg (Bern University)

Zoom: 
https://jlab-org.zoomgov.com/j/1604596152?pwd=mibAQ8ziTyr1yrngbs2IIobuEyvuWn.1

Titel: Bayesian Analysis and Analytic Continuation of Scattering 
Amplitudes from Lattice QCD

Abstract: 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 in resonant systems from the HadSpec and BaSc 
collaborations.


Best wishes,
Adam, Joe, Pia
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