Preliminary results on γγ → KsK±π∓ from e+e− scattering at CLEO Original Research Article

We analyzed 13.8 fb−1 of the integrated e+e− luminosity collected at 10.6 GeV center-of-mass energy with the CLEO II and II.V detectors to study exclusive two-photon production of single hadronic resonances. We searched for hadrons decaying into KsK±π∓ when both leptons remain undetected. In this analysis we studied the detection efficiency and evaluated systematic errors using independent data samples. We estimated 90% CL upper limits on the products of the two-photon partial widths of (pseudo)scalar hadrons with masses below 1.7 GeV/c2 and their branching fractions into Ks(π+π−)K±gp∓. Our preliminary results are marginally consistent with the first observation of η(1440) in two-photon collisions by the L3 experiment.