Search for X(3872) in gamma gamma fusion and ISR at CLEO

/ Authors

S. Dobbs, Z. Metreveli, K. Seth, A. Tomaradze, P. Zweber, J. Ernst, A. Mahmood, H. Severini, D. Asner, S. Dytman

and 129 more authors

W. Love, S. Mehrabyan, J. Mueller, V. Savinov, Z. Li, A. Lopez, H. Mendez, J. Ramirez, G. Huang, D. Miller, V. Pavlunin, B. Sanghi, E. Shibata, I. Shipsey, G. Adams, M. Chassé, M. Cravey, J. Cummings, I. Dankó, J. Napolitano, D. Cronin-Hennessy, C. S. Park, W. Park, J. Thayer, E. Thorndike, T. Coan, Y. Gao, F. Liu, M. Artuso, C. Boulahouache, S. Blusk, J. Butt, E. Dambasuren, O. Dorjkhaidav, N. Menaa, R. Mountain, H. Muramatsu, R. Nandakumar, R. Redjimi, R. Sia, T. Skwarnicki, S. Stone, J. Wang, K. Zhang, S. Csorna, G. Bonvicini, D. Cinabro, M. Dubrovin, Adi Bornheim, S. Pappas, A. Weinstein, J. Rosner, R. Briere, G. Chen, T. Ferguson, G. Tatishvili, H. Vogel, M. E. Watkins, N. Adam, J. Alexander, K. Berkelman, D. Cassel, V. Crede, J. Duboscq, K. Ecklund, R. Ehrlich, L. Fields, R. Galik, L. Gibbons, B. Gittelman, R. Gray, S. Gray, D. Hartill, B. Heltsley, D. Hertz, L. Hsu, C. Jones, J. Kandaswamy, D. Kreinick, V. Kuznetsov, H. Mahlke-Krüger, T. Meyer, P. Onyisi, J. Patterson, D. Peterson, J. Pivarski, D. Riley, A. Ryd, A. Sadoff, H. Schwarthoff, M. Shepherd, S. Stroiney, W. Sun, J. Thayer, D. Urner, T. Wilksen, M. Weinberger, S. Athar, P. Avery, L. Breva-Newell, R. Patel, V. Potlia, H. Stoeck, J. Yelton, P. Rubin, C. Cawlfield, B. Eisenstein, G. Gollin, I. Karliner, D. Kim, N. Lowrey, P. Naik, C. Sedlack, M. Selen, J. Thaler, J. Williams, J. Wiss, K. Edwards, D. Besson, T. Pedlar, K. Gao, D. Gong, Y. Kubota, B. Lang, S. Li, R. Poling, A. Scott, A. Smith, C. Stepaniak

/ Abstract

We report on a search for the X(3872) state using 15.1 fb^{-1} of e+ e- annihilation data taken with the CLEO III detector in the sqrt{s} = 9.46-11.30 GeV region. Separate searches for the production of X(3872) in untagged gamma gamma fusion and e+ e- annihilation following initial state radiation are made by taking advantage of the unique correlation of J/psi -> l+ l- in X(3872) decay into J/psi pi+ pi-. No signals are observed in either case, and 90% confidence upper limits are established as (2J+1)Gamma_{gammagamma}(X(3872))B(X -> J/psi pi+ pi-) J/psi pi+ pi-) < 8.3 eV.

Journal: Physical Review Letters

DOI: 10.1103/PhysRevLett.94.032004