Search for ψ 0 ( 4360 ) → η ψ ( 2 S ) through the process e + e − → η η ψ ( 2 S )
Abstract
Using data samples corresponding to an integrated luminosity of 0.9 fb − 1 collected with the BESIII detector operating at the BEPCII storage ring at the center-of-mass energies of 4.84, 4.92, and 4.95 GeV, we search for the exotic charmoniumlike state with quantum numbers J P C = 0 − − , ψ 0 ( 4360 ) , in the process e + e − → η ψ 0 ( 4360 ) with ψ 0 ( 4360 ) → η ψ ( 2 S ) . No significant signal of the ψ 0 ( 4360 ) resonance state is observed. Upper limits on σ ( e + e − → η ψ 0 ( 4360 ) ) · B ( ψ 0 ( 4360 ) → η ψ ( 2 S ) ) and σ ( e + e − → η η ψ ( 2 S ) ) at the 90% confidence level are determined for each energy point.
Fields of Study & Subjects
Quantum Chromodynamics and Particle Interactions
Particle physics theoretical and experimental studies
High-Energy Particle Collisions Research
Publication details
- Journal / source
- Physical review. D/Physical review. D.
- Volume
- 113
- Issue
- 9
- Publication date
- 20 April 2026
- Language
- EN