2026/02/16 by Ri-Qing Qian, Bing Chen, Xiang Liu
#hep-ph
Hadrons with explicit gluonic degrees of freedom, such as charmonium hybrids, are key to understanding nonperturbative behavior of strong interaction, yet they remain experimentally elusive. Within a constituent gluon model treating the hybrid as a ccg three-body system with a transverse electric gluon, we predict the masses of the lightest hybrid multiplet (JPC=1--, 0-+, 1-+, 2-+) to lie in the range 4.19--4.32 GeV. By analyzing their decay patterns, we provide specific, experimentally testable signatures to guide the search for these exotic states at current and future facilities.