Phys. Rev. Lett.
94,
032004
(2005)
[5 pages]
Search for X(3872) in γγ Fusion and Radiative Production at CLEO
S. Dobbs et al. CLEO Collaboration
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S. Dobbs1, Z. Metreveli1, K. K. Seth1, A. Tomaradze1, P. Zweber1, J. Ernst2, A. H. Mahmood2, H. Severini3, D. M. Asner4, S. A. Dytman4, W. Love4, S. Mehrabyan4, J. A. Mueller4, V. Savinov4, Z. Li5, A. Lopez5, H. Mendez5, J. Ramirez5, G. S. Huang6, D. H. Miller6, V. Pavlunin6, B. Sanghi6, E. I. Shibata6, I. P. J. Shipsey6, G. S. Adams7, M. Chasse7, M. Cravey7, J. P. Cummings7, I. Danko7, J. Napolitano7, D. Cronin-Hennessy8, C. S. Park8, W. Park8, J. B. Thayer8, E. H. Thorndike8, T. E. Coan9, Y. S. Gao9, F. Liu9, M. Artuso10, C. Boulahouache10, S. Blusk10, J. Butt10, E. Dambasuren10, O. Dorjkhaidav10, N. Menaa10, R. Mountain10, H. Muramatsu10, R. Nandakumar10, R. Redjimi10, R. Sia10, T. Skwarnicki10, S. Stone10, J. C. Wang10, K. Zhang10, S. E. Csorna11, G. Bonvicini12, D. Cinabro12, M. Dubrovin12, A. Bornheim13, S. P. Pappas13, A. J. Weinstein13, J. L. Rosner14, R. A. Briere15, G. P. Chen15, T. Ferguson15, G. Tatishvili15, H. Vogel15, M. E. Watkins15, N. E. Adam16, J. P. Alexander16, K. Berkelman16, D. G. Cassel16, V. Crede16, J. E. Duboscq16, K. M. Ecklund16, R. Ehrlich16, L. Fields16, R. S. Galik16, L. Gibbons16, B. Gittelman16, R. Gray16, S. W. Gray16, D. L. Hartill16, B. K. Heltsley16, D. Hertz16, L. Hsu16, C. D. Jones16, J. Kandaswamy16, D. L. Kreinick16, V. E. Kuznetsov16, H. Mahlke-Krüger16, T. O. Meyer16, P. U. E. Onyisi16, J. R. Patterson16, D. Peterson16, J. Pivarski16, D. Riley16, A. Ryd16, A. J. Sadoff16, H. Schwarthoff16, M. R. Shepherd16, S. Stroiney16, W. M. Sun16, J. G. Thayer16, D. Urner16, T. Wilksen16, M. Weinberger16, S. B. Athar17, P. Avery17, L. Breva-Newell17, R. Patel17, V. Potlia17, H. Stoeck17, J. Yelton17, P. Rubin18, C. Cawlfield19, B. I. Eisenstein19, G. D. Gollin19, I. Karliner19, D. Kim19, N. Lowrey19, P. Naik19, C. Sedlack19, M. Selen19, J. J. Thaler19, J. Williams19, J. Wiss19, K. W. Edwards1,20, D. Besson21, T. K. Pedlar22, K. Y. Gao23, D. T. Gong23, Y. Kubota23, B. W. Lang23, S. Z. Li23, R. Poling23, A. W. Scott23, A. Smith23, and C. J. Stepaniak23 (CLEO Collaboration)
1Northwestern University, Evanston, Illinois 60208, USA
2State University of New York at Albany, Albany, New York 12222, USA
3University of Oklahoma, Norman, Oklahoma 73019, USA
4University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
5University of Puerto Rico, Mayaguez, Puerto Rico 00681
6Purdue University, West Lafayette, Indiana 47907, USA
7Rensselaer Polytechnic Institute, Troy, New York 12180, USA
8University of Rochester, Rochester, New York 14627, USA
9Southern Methodist University, Dallas, Texas 75275, USA
10Syracuse University, Syracuse, New York 13244, USA
11Vanderbilt University, Nashville, Tennessee 37235, USA
12Wayne State University, Detroit, Michigan 48202, USA
13California Institute of Technology, Pasadena, California 91125, USA
14Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
15Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
16Cornell University, Ithaca, New York 14853
17University of Florida, Gainesville, Florida 32611, USA
18George Mason University, Fairfax, Virginia 22030, USA
19University of Illinois, Urbana-Champaign, Illinois 61801, USA
20Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada
21University of Kansas, Lawrence, Kansas 66045, USA
22Luther College, Decorah, Iowa 52101, USA
23University of Minnesota, Minneapolis, Minnesota 55455, USA
Received 13 October 2004; published 27 January 2005
We report on a search for the recently reported X(3872) state using 15.1 fb-1 of e+e- data taken in the √s=9.46–11.30 GeV region. Separate searches for the production of the X(3872) in untagged γγ fusion and e+e- annihilation following initial state radiation are made by taking advantage of the unique angular correlation between the leptons from the decay J/ψ→l+l- in X(3872) decay to π+π-J/ψ. No signals are observed in either case, and 90% confidence upper limits are established as (2J+1)Γγγ(X(3872))B(X→π+π-J/ψ)<12.9 eV and Γee(X(3872))B(X→π+π-J/ψ)<8.3 eV.
© 2005 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.032004
DOI:
10.1103/PhysRevLett.94.032004
PACS:
12.39.Mk, 13.25.Gv, 13.66.Lm, 14.40.Gx
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