Exotic heavy hadrons with a three-body nature

TL;DR

This paper summarizes recent theoretical predictions of exotic three-body heavy hadron states with explicit or hidden charm and strangeness, highlighting potential new particles around 4140 MeV, 4307 MeV, 2900 MeV, and 4600 MeV.

Contribution

The study provides novel predictions of heavy hadron states with specific quantum numbers using a three-body system approach, guiding future experimental searches.

Findings

Predicted a charm +2 state around 4140 MeV with strangeness +1.

Identified a hidden charm state near 4307 MeV involving K*.

Generated a meson D around 2900 MeV and hidden charm N* and Δ* states near 4600 MeV.

Abstract

In this talk we present a summary of our latest results on the investigation of three-body systems with explicit/hidden charm and with explicit/hidden strangeness. To be more concrete, in case of explicit strangeness quantum number, we pay attention on the $K D D $ and $K D\bar D^*$ systems, where, in the former, a charm $+2$, isospin $1/2$ and strangeness $+1$ state is obtained with a mass around 4140 MeV, while in the latter, a $K^*$ state, with hidden charm, and a mass close to 4307 MeV is found. In case of hidden strangeness, the $DK\bar K$ system is studied, while in the hidden charm and no strangeness quantum numbers sector, the $ND\bar D^*$ system is investigated. In the former a meson $D$ with mass around 2900 MeV is found to be generated, while in the latter several $N^*$ and $\Delta^*$ states with hidden charm are obtained with masses about $4600$ MeV. All these states constitute predictions of our model and future experimental confirmation of them would be relevant to elucidate the properties of the strong interaction in the presence of heavy quarks.