26-31 July 2021
Mexico City
Mexico/General timezone
HADRON 2021 is over. Thanks for making it a success!
Home > Timetable > Session details > Contribution details

Contribution Parallel

Mexico City -
QCD and Hadron Structure

Good and bad diquark properties and spatial correlations in lattice QCD

Speakers

  • Dr. Anthony FRANCIS

Primary authors

Abstract

We study good, bad and not-even-bad diquarks on the lattice in a gauge-invariant formalism in full QCD. We establish their spectral masses with short extrapolations to the physical point, observing agreement with predictions. We find that only the good diquark has attractive quark-quark spatial correlations, with spherical shape and size $\sim 0.6~\rm{fm}$. Our results provide quantitative support for modelling the low-lying baryon spectrum using good light diquark effective degrees of freedom.