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The CLEOII detector at the Cornell e+ e- storage ring CESR has been used tosearch for the two-photon production of the $f_J(2220)$ decaying into pi+ pi-.No evidence for a signal is found in data corresponding to an integratedluminosity of 4.77/fb and a 95% CL upper limit on $\Gamma_{two-photon} * BR{pi+pi-}$ of 2.5 eV is set. If this result is combined with the BES Collaboration'smeasurement of $f_J(2220) -> pi+ pi-$ in radiative $J/\psi$ decay, a 95% CLlower limit on the stickiness of the $f_J(2220)$ of 73 is obtained. If therecent CLEO result for $\Gamma_{two-photon} * BR{\K_S K_S}$ is combined withthe present result, the stickiness of the $f_J(2220)$ is found to be largerthan 102 at the 95% CL. These results for the stickiness (the ratio of theprobabilities for two-gluon coupling and two-photon coupling) provide furthersupport for a substantial neutral parton content in the $f_J(2220)$.

physical review letters

Further Search for the Two-Photon Production of the Glueball Candidate<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>f</mml:mi></mml:mrow><mml:mrow><mml:mi>J</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>(</mml:mo><mml:mn>2220</mml:mn><mml:mo>)</mml:mo></mml:math>

Further Search for the Two-Photon Production of the Glueball CandidatefJ(2220)