Strange pentaquarks with a hidden heavy quark-antiquark pair
High Energy Physics - Phenomenology
2025-07-29 v1
Abstract
The strange pentaquarks with hidden heavy quark pair ( and ) are investigated by the coupled-channel quark cluster model. Two types of the color-octet configurations are found to provide the attraction, which makes bound states, sharp resonances, and cusps in the baryon meson scattering. A resonance appears at around 4500 MeV in the strange hidden charm sector. Such structures are more clearly seen in the hidden bottom systems.
Keywords
Cite
@article{arxiv.2507.20751,
title = {Strange pentaquarks with a hidden heavy quark-antiquark pair},
author = {Sachiko Takeuchi and Alessandro Giachino and Makoto Takizawa and Elena Santopinto and Makoto Oka},
journal= {arXiv preprint arXiv:2507.20751},
year = {2025}
}
Comments
5 pages, 3 figures, Hadron 2019 proceedings