Phys. Rev. D
75,
071101(R)
(2007)
[4 pages]
χc0 and χc2 decays into ηη, ηη′, and η′η′ final states
G. S. Adams et al. CLEO Collaboration
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G. S. Adams1, M. Anderson1, J. P. Cummings1, I. Danko1, J. Napolitano1, Q. He2, J. Insler2, H. Muramatsu2, C. S. Park2, E. H. Thorndike2, F. Yang2, T. E. Coan3, Y. S. Gao3, M. Artuso4, S. Blusk4, J. Butt4, J. Li4, N. Menaa4, R. Mountain4, S. Nisar4, K. Randrianarivony4, R. Sia4, T. Skwarnicki4, S. Stone4, J. C. Wang4, K. Zhang4, S. E. Csorna5, G. Bonvicini6, D. Cinabro6, M. Dubrovin6, A. Lincoln6, D. M. Asner7, K. W. Edwards7, R. A. Briere8, J. Chen8, T. Ferguson8, G. Tatishvili8, H. Vogel8, M. E. Watkins8, J. L. Rosner9, N. E. Adam10, J. P. Alexander10, K. Berkelman10, D. G. Cassel10, J. E. Duboscq10, K. M. Ecklund10, R. Ehrlich10, L. Fields10, R. S. Galik10, L. Gibbons10, R. Gray10, S. W. Gray10, D. L. Hartill10, B. K. Heltsley10, D. Hertz10, C. D. Jones10, J. Kandaswamy10, D. L. Kreinick10, V. E. Kuznetsov10, H. Mahlke-Krüger10, P. U. E. Onyisi10, J. R. Patterson10, D. Peterson10, J. Pivarski10, D. Riley10, A. Ryd10, A. J. Sadoff10, H. Schwarthoff10, X. Shi10, S. Stroiney10, W. M. Sun10, T. Wilksen10, M. Weinberger10, S. B. Athar11, R. Patel11, V. Potlia11, J. Yelton11, P. Rubin12, C. Cawlfield13, B. I. Eisenstein13, I. Karliner13, D. Kim13, N. Lowrey13, P. Naik13, C. Sedlack13, M. Selen13, E. J. White13, J. Wiss13, R. E. Mitchell14, M. R. Shepherd14, D. Besson15, T. K. Pedlar16, D. Cronin-Hennessy17, K. Y. Gao17, J. Hietala17, Y. Kubota17, T. Klein17, B. W. Lang17, R. Poling17, A. W. Scott17, A. Smith17, P. Zweber17, S. Dobbs18, Z. Metreveli18, K. K. Seth18, A. Tomaradze18, J. Ernst19, H. Severini20, S. A. Dytman21, W. Love21, V. Savinov21, O. Aquines22, Z. Li22, A. Lopez22, S. Mehrabyan22, H. Mendez22, J. Ramirez22, G. S. Huang23, D. H. Miller23, V. Pavlunin23, B. Sanghi23, I. P. J. Shipsey23, and B. Xin23 (CLEO Collaboration)
1Rensselaer Polytechnic Institute, Troy, New York 12180, USA
2University of Rochester, Rochester, New York 14627, USA
3Southern Methodist University, Dallas, Texas 75275, USA
4Syracuse University, Syracuse, New York 13244, USA
5Vanderbilt University, Nashville, Tennessee 37235, USA
6Wayne State University, Detroit, Michigan 48202, USA
7Carleton University, Ottawa, Ontario, Canada K1S 5B6
8Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
9Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
10Cornell University, Ithaca, New York 14853, USA
11University of Florida, Gainesville, Florida 32611, USA
12George Mason University, Fairfax, Virginia 22030, USA
13University of Illinois, Urbana-Champaign, Illinois 61801, USA
14Indiana University, Bloomington, Indiana 47405, USA
15University of Kansas, Lawrence, Kansas 66045, USA
16Luther College, Decorah, Iowa 52101, USA
17University of Minnesota, Minneapolis, Minnesota 55455, USA
18Northwestern University, Evanston, Illinois 60208, USA
19State University of New York at Albany, Albany, New York 12222, USA
20University of Oklahoma, Norman, Oklahoma 73019, USA
21University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
22University of Puerto Rico, Mayaguez, Puerto Rico 00681
23Purdue University, West Lafayette, Indiana 47907, USA
See Also:
Publisher's Note
Received 3 November 2006; published 4 April 2007; corrected 13 April 2007
Using a sample of 3×106 ψ(2S) decays collected by the CLEO III and CLEO-c detector configurations, we present results of a study of χc0 and χc2 decays into ηη, ηη′, and η′η′ final states. We find B(χc0→ηη)=(0.31±0.05±0.04±0.02)%, B(χc0→ηη′)<0.05% at the 90% confidence level, and B(χc0→η′η′)=(0.17±0.04±0.02±0.01)%. We also present upper limits for the decays of χc2 into these final states. These results give information on the decay mechanism of χc states into pseudoscalars.
© 2007 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.75.071101
DOI:
10.1103/PhysRevD.75.071101
See Also
Publisher's Note:
G. S. Adams et al. CLEO Collaboration,
Publisher’s Note: χc0 and χc2 decays into ηη, ηη′, and η′η′ final states [Phys. Rev. D 75, 071101 (2007)],
Phys. Rev. D 75, 079901 (2007).
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