Constituent quark-model hidden-flavor pentaquarks

TL;DR

This paper investigates hidden-flavor pentaquarks using a constituent quark model, revealing distinct patterns for open-flavor and hidden-flavor states and discussing potential quarkonia-nucleus bound states.

Contribution

It introduces a detailed constituent quark-model analysis of hidden-flavor pentaquarks, emphasizing dynamical correlations and comparing results with experimental data and other models.

Findings

Different patterns for open-flavor and hidden-flavor pentaquarks.

Consistent reproduction of low-energy meson and baryon spectra.

Implications for quarkonia bound to nuclei.

Abstract

We study hidden-flavor pentaquarks, $Q\bar Q qqq$, based on a constituent quark-model with a standard quark-quark interaction that reproduces the low-energy meson and baryon spectra. We make use of dynamical correlations between the heavy quarks arising from the Coulomb-like nature of the short-range interaction. A detailed comparison is made with other results in the literature and with experimental data. Our results show a different pattern for open-flavor and hidden-flavor pentaquarks, as suggested by the data. Further implications about the existence of quarkonia bound to nuclei are discussed.