Investigations on heavy quarkonium hybrid mesons with exotic quantum numbers J P C = 2 + −
Abstract
We investigate the heavy quarkonium hybrid mesons with exotic quantum numbers J P C = 2 + − via QCD sum rule method. We construct the currents with three Lorentz indices and calculate the correlation functions up to dimension six at the leading order of α s . The states with J P C = 2 + − are extracted by constructing the corresponding projection operators. The obtained results indicate that the masses of 2 + − c ¯ G c and b ¯ G b hybrid states are about 4.49 GeV and 10.48 GeV, respectively. We suggest to search for c ¯ G c hybrid meson with J P C = 2 + − in J / ψf 0,1,2 and χ c 0,1,2 ω final states.
Fields of Study & Subjects
Quantum Chromodynamics and Particle Interactions
High-Energy Particle Collisions Research
Particle physics theoretical and experimental studies
Publication details
- Journal / source
- Physics Letters B
- Volume
- 874
- Pages
- 140226–140226
- Publication date
- 30 January 2026
- Language
- EN