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arXiv · 2309.02905

Holographic stability for non-$q\bar{q}$ candidates

Miguel Angel Martin Contreras·Alfredo Vega
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Abstract

In the context of bottom-up AdS/QCD models, we discuss how the configurational entropy can describe heavy non-$q\,\bar{q}$ states. Using the non-quadratic softwall model, introduced to describe non-linear Regge trajectories, we parametrize different multiquark and exotic meson structures to describe $Z_c$, $\psi$, and $Z_b$ states as non-$q\,\bar{q}$ hadrons in terms of stability. We found that $Z_c$ is better described as a hybrid meson with one gluon tube, $\psi$ as hadrocharmonium, and $Z_b$ as hadronic molecule.

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Miguel Angel Martin Contreras, Alfredo Vega. 2023-09-06. Holographic stability for non-$q\bar{q}$ candidates. https://doi.org/10.1103/physrevd.108.126024

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