Preliminary Results on gamma gamma -> Ks K pi from CLEO

TL;DR

This study investigates two-photon production of hadronic resonances decaying into Ks K pi using CLEO data, setting upper limits on certain hadron properties and comparing with previous observations.

Contribution

First analysis of two-photon production of Ks K pi resonances at CLEO, providing upper limits and preliminary results on eta(1440).

Findings

Set 90% CL upper limits on two-photon widths and branching fractions.

Preliminary results marginally consistent with eta(1440) observation by L3.

Analyzed 13.8 fb^{-1} of data at 10.6 GeV.

Abstract

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 Ks K pi 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 K pi. Our preliminary results are marginally consistent with the first observation of eta(1440) in two-photon collisions by the L3 experiment.