Good and bad diquark properties and spatial correlations in lattice QCD
High Energy Physics - Lattice
2022-01-12 v1 High Energy Physics - Phenomenology
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 phenomenological expectations. We find that only the good diquark has attractive quark-quark spatial correlations, with spherical shape and size fm. Our results provide quantitative support for modelling the low-lying baryon spectrum using good light diquark effective degrees of freedom.
Cite
@article{arxiv.2201.03332,
title = {Good and bad diquark properties and spatial correlations in lattice QCD},
author = {Anthony Francis and Philippe De Forcrand and Randy Lewis and Kim Maltman},
journal= {arXiv preprint arXiv:2201.03332},
year = {2022}
}
Comments
5 pages, 4 figures, contribution to "19th International Conference on Hadron Spectroscopy and Structure in memoriam Simon Eidelman (HADRON2021)"