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arXiv · 2507.22694

Entanglement suppression and emergent symmetries in hadron scatterings

Tao-Ran Hu·Su Chen·Katsuyoshi Sone·Feng-Kun Guo·Tetsuo Hyodo·Ian Low
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Abstract

Recently entanglement suppression was proposed to be one potential origin of emergent symmetries. In this work, we extend this theoretical framework to accommodate particles with arbitrary spins and/or arbitrary group representations. As case studies, we discuss recent efforts to test the entanglement-suppression conjecture in two hadron systems that exhibit possible emergent symmetries. The first concerns interactions involving spin-3/2 baryons, where entanglement suppression gives rise to symmetries such as $\text{SU}(40)$ spin-flavor symmetry. The second system involves low-energy scattering of heavy mesons, where entanglement suppression leads to an enhancement of the inherent heavy-quark spin symmetry to a light-quark spin symmetry, predicting additional siblings for the prominent exotic double-charm meson $T_{cc}(3875)^+$. These predictions should be confronted against experimental data and lattice results to further test the minimal-entanglement conjecture.

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Tao-Ran Hu, Su Chen, Katsuyoshi Sone, Feng-Kun Guo, Tetsuo Hyodo, Ian Low. 2025-07-30. Entanglement suppression and emergent symmetries in hadron scatterings. https://doi.org/10.22323/1.500.0104

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