Speaker
Davide Laudicina
(Ruhr Universität Bochum)
Description
We present a strategy, based on spectral reconstruction techniques, to extract ground-state energies of Euclidean correlators from smeared observables. The reconstruction acts as a filter on the higher-lying spectrum, suppressing excited-state contamination with respect to the original correlator. The residual contamination is controlled by the smearing hyperparameters, providing an alternative and parameterization-independent way to extract ground-state energies. The approach is illustrated using single-baryon correlation functions at $m_\pi\approx280\,{\rm MeV}$ produced by the Baryon Scattering Collaboration (BaSc).
Author
Davide Laudicina
(Ruhr Universität Bochum)
Co-authors
Gerardo Emiliano Gutierrez Alvarez
(Ruhr University Bochum)
John Bulava