Dec 15 – 16, 2022
Centre for Particle Theory, Durham
Europe/London timezone

Spectral Reconstruction in NRQCD using the Backus-Gilbert Method

Dec 15, 2022, 2:30 PM
10m
Ph8 (zoom room 1) (Centre for Particle Theory, Durham)

Ph8 (zoom room 1)

Centre for Particle Theory, Durham

Department of Physics Durham University South Road Durham DH1 3LE
Gong show talk (5 mins) Gong Show Talks

Speaker

Ben Page (Swansea University)

Description

Reconstructing the spectrum of QCD in the non-relativistic regime involves the inversion of a Laplace transform. For noisy lattice data, this process is numerically unstable and requires treatment to avoid the emergence of infinitely many spectra. One such treatment is the Backus-Gilbert method, originally applied to seismic wave data, now deployed in the reconstruction of heavy bottomonium meson spectra. We then conclude with a discussion of properties of the Laplace transform and how they may be manipulated to improve the resolution of the reconstruction.

Type of presentation 5 minute talk
Would you be interested in receiving feedback on your presentation? Yes
Are you happy for your talk to be recorded? Yes
Please select the most relevant category Lattice QCD

Primary author

Ben Page (Swansea University)

Co-authors

Prof. Chris Allton (Swansea University) Prof. Seyong Kim (Sejong University)

Presentation materials