Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

On the prediction of spectral densities from Lattice QCD: theoretical aspects

Jun 6, 2023, 4:55 PM
DAD - Room 5H (Genova, Italy)

DAD - Room 5H

Genova, Italy

Contributed Hadron decays, production and interactions Hadron decays, production and interaction


Mattia Bruno (Universita' di Milano-Bicocca)


Hadronic spectral densities play a pivotal role in particle physics, a primer example being the R-ratio defined from electron-positron scattering into hadrons. To predict them from first principles using Lattice QCD, we face a numerically ill-posed inverse problem, due to the Euclidean signature adopted in practical simulations. Here we review the status of recent numerical approaches to the inverse Laplace transform and present a new analysis of the typical systematic errors associated to a Lattice prediction (e.g. finite-volume effects).

Primary authors

Dr Matteo Saccardi (Istituto Nazionale di Fisica Nucleare) Mattia Bruno (Universita' di Milano-Bicocca)

Presentation materials