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

Author(s): Alam, MS; Athar, SB; Ling, Z; Mahmood, AH; Timm, S; Wappler, F; Anastassov, A; Duboscq, JE; Gan, KK; Hart, T; Honscheid, K; Kagan, H; Kass, R; Lee, J; Schwarthoff, H; Spencer, MB; Wolf, A; Zoeller, MM; Richichi, SJ; Severini, H; Skubic, P; Undrus, A; Bishai, M; Fast, J; Hinson, JW; Menon, N; Miller, DH; Shibata, EI; Shipsey, IPJ; Glenn, S; Kwon, Y; Lyon, AL; Roberts, S; Thorndike, EH; Jessop, CP; Lingel, K; Marsiske, H; Perl, ML; Savinov, V; Ugolini, D; Zhou, X; Coan, TE; Fadeyev, V; Korolkov, I; Maravin, Y; Narsky, I; Shelkov, V; Staeck, J; Stroynowski, R; Volobouev, I; Ye, J; Artuso, M; Dambasuren, E; Efimov, A; Kopp, S; Moneti, GC; Mountain, R; Schuh, S; Skwarnicki, T; Stone, S; Titov, A; Viehhauser, G; Wang, JC; Bartelt, J; Csorna, SE; Mc Lean, KW; Marka, S; Godang, R; Kinoshita, K; Lai, IC; Pomianowski, P; Schrenk, S; Bonvicini, G; Cinabro, D; Greene, R; Perera, LP; Zhou, GJ; Chadhha, M; Chan, S; Eigen, G; Miller, JS; Schmidtler, M; Urheim, J; Weinstein, AJ; Wurthwein, F | Abstract: The CLEO II detector at the e+e− storage ring CESR has been used to search for two-photon production of the fJ(2220) decaying into π+π−. No evidence for a signal is found in 4.77fb−1 of data and a 95% C.L. upper limit on [τγγBπ+π−]fJ(2220) of 2.5 eV is set. If this result is combined with the BES Collaboration's measurement of fJ(2220)→π+π− in radiative J/Ψ decay and the recent CLEO result for [τγγBK0SK0S]fJ(2220), a 95% C.L. lower limit on the stickiness of 102 is obtained. This result for the stickiness provides further support for a substantial neutral parton content in the fJ(2220). © 1998 The American Physical Society.