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SUMMARY:Bayesian Analysis and Analytic Continuation of Scattering Amplitud
 es from Lattice QCD - Miguel Salg (U. Bern\, AEC)
DTSTART:20251128T160000Z
DTEND:20251128T170000Z
UID:TALK240580@talks.cam.ac.uk
CONTACT:Terry Generet
DESCRIPTION:We present a novel procedure for analyzing the lattice-QCD spe
 ctrum via the finite-volume formalism to obtain constraints on multi-hadro
 n scattering amplitudes at both real and complex energies. This approach c
 ombines a Bayesian reconstruction of the scattering amplitude on the real 
 axis with Nevanlinna interpolation for analytic continuation to complex-va
 lued energies. The method is non-parametric\, inherently accounting for pa
 rametrization dependence within the uncertainty. We demonstrate the applic
 ability of this approach using real lattice-QCD data in resonant systems f
 rom the HadSpec and BaSc collaborations.
LOCATION:MR19 (Potter Room\, Pavilion B)\, CMS
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