Aug 2 – 6, 2021
Europe/Brussels timezone

A comparison of spectral reconstruction methods applied to non-zero temperature NRQCD meson correlation functions

Aug 3, 2021, 9:45 AM


Parallel contribution D: Deconfinement Parallels Track D


Thomas Spriggs (Swansea University)


We present a comparison among various methods used to extract the spectral functions of S- and P-wave meson states from non-zero temperature NRQCD correlation functions using the FASTSUM anisotropic lattice: the maximum likelihood, Backus Gilbert, and machine learning approaches. We review the common features that can be extracted by all methods and compare the results for masses and widths.

Primary author

Thomas Spriggs (Swansea University)


Prof. Gert Aarts (Swansea University) Prof. Chris Allton (Swansea University) Prof. Tim Burns (Swansea Univeristy) Prof. Benjamin Jäger (University of Southern Denmark) Prof. Seyong Kim (Sejong University) Maria Paola Lombardo (INFN) Mr Sam Offler (Swansea University) Mr Ben Page (Swansea University) Prof. Sinead Ryan (Trinity College Dublin) Dr Jonivar Skullerud (University of Ireland Maynooth)

Presentation materials