Di-$J/\psi$ structures from the quark Pauli-blocking effect
High Energy Physics - Phenomenology
2025-07-23 v1 Nuclear Theory
Abstract
The double-charmonium scattering states such as , , and are investigated by a simplified quark cluster model. It is found that the quark Pauli-principle over the system causes a rapid increase and a node in the two-meson phase shifts. The increase is not large enough to be regarded as a resonance, but if it is seen experimentally, that is most likely the quark Pauli-blocking effect.
Cite
@article{arxiv.2507.16752,
title = {Di-$J/\psi$ structures from the quark Pauli-blocking effect},
author = {Sachiko Takeuchi and Atsushi Hosaka and Makoto Takizawa and Yasuhiro Yamaguchi},
journal= {arXiv preprint arXiv:2507.16752},
year = {2025}
}
Comments
8 pages, 6 figures, QCHSC24 proceedings