Overview of multiquark states
C. Fischer,* G. Eichmann
*corresponding author
Full text: pdf
Pre-published on: 2018 February 16
Published on: 2018 March 20
Abstract
In this contribution we focus on the spectrum of three-quark (qqq) and
four-quark ($\bar{q}q\bar{q}q$) states in the framework of Dyson-Schwinger, Bethe-Salpeter,
Faddeev and Faddeev-Yakubowsky equations. To determine both types of spectra we use a
well-established momentum-dependent quark-gluon interaction that generates dynamical
chiral symmetry breaking in accordance with chiral identities. We discuss
recent results on the spectrum of ground-state and excited baryons in the light
and strange quark sector. For double and triple strange baryons we provide predictions
which can be explored in current and future experiments such as LHCb and PANDA/FAIR.
For the four-quark systems we exemplify the framework's potential to describe the
transition between resonances and bound states with increasing quark masses and
discuss the possibility to distinguish between various internal clusterings of heavy-light
four-quark systems.
DOI: https://doi.org/10.22323/1.310.0007
Open Access