Limit on the Two-Photon Production of the Glueball Candidate fJ(2220) at CLEO
CLEO Collaboration, R. Godang
Abstract
We use the CLEO detector at the Cornell electron-positron storage ring, CESR, to search for the two-photon production of the glueball candidate fJ(2220) in its decay to Ks Ks. We present a restrictive upper limit on the product of the two-photon partial width and the Ks Ks branching fraction. We use this limit to calculate a lower limit on the stickiness, which is a measure of the two-gluon coupling relative to the two-photon coupling. This limit on stickiness indicates that the fJ(2220) has substantial glueball content.
Create a lesson
Related papers
A machine-learning method for the estimation of the background from jets misidentified as hadronic tau lepton decays
CMS Collaboration
Recent results in b → s\, transitions at LHCb
Juan Jose Juan Castella
Determination of U-spin breaking parameters with an amplitude analysis of the decay D0 KS,L0π+π-
BESIII Collaboration, M. Ablikim, M. N. Achasov et al.
Observation of a Threshold Enhancement in the π0π0 Mass Spectrum in ψ(3686) → π0π0J/ψ Decays
BESIII Collaboration, M. Ablikim, M. N. Achasov et al.
HepUKE: Uncertainty-aware Knowledge Evolution for High Energy Physics Analysis Agents
Zijie Shang, Ke Li, Junkun Jiao et al.
A compact, interrogable Tree Tensor Network Jet Tagger on Lund declustering trees
Fabrizio Napolitano, Luca Della Penna, Tommaso Tedeschi et al.