Phys. Rev. D
72,
051108(R)
(2005)
[6 pages]
Branching-fraction measurements of ψ(2S) decay to baryon-antibaryon final states
T. K. Pedlar et al. CLEO Collaboration
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T. K. Pedlar1, D. Cronin-Hennessy2, K. Y. Gao2, D. T. Gong2, J. Hietala2, Y. Kubota2, T. Klein2, B. W. Lang2, S. Z. Li2, R. Poling2, A. W. Scott2, A. Smith2, S. Dobbs3, Z. Metreveli3, K. K. Seth3, A. Tomaradze3, P. Zweber3, J. Ernst4, A. H. Mahmood4, H. Severini5, D. M. Asner6, S. A. Dytman6, W. Love6, S. Mehrabyan6, J. A. Mueller6, V. Savinov6, Z. Li7, A. Lopez7, H. Mendez7, J. Ramirez7, G. S. Huang8, D. H. Miller8, V. Pavlunin8, B. Sanghi8, I. P. J. Shipsey8, G. S. Adams9, M. Cravey9, J. P. Cummings9, I. Danko9, J. Napolitano9, Q. He10, H. Muramatsu10, C. S. Park10, W. Park10, E. H. Thorndike10, T. E. Coan11, Y. S. Gao11, F. Liu11, M. Artuso12, C. Boulahouache12, S. Blusk12, J. Butt12, O. Dorjkhaidav12, J. Li12, N. Menaa12, R. Mountain12, R. Nandakumar12, K. Randrianarivony12, R. Redjimi12, R. Sia12, T. Skwarnicki12, S. Stone12, J. C. Wang12, K. Zhang12, S. E. Csorna13, G. Bonvicini14, D. Cinabro14, M. Dubrovin14, R. A. Briere15, G. P. Chen15, J. Chen15, T. Ferguson15, G. Tatishvili15, H. Vogel15, M. E. Watkins15, J. L. Rosner16, N. E. Adam17, J. P. Alexander17, K. Berkelman17, D. G. Cassel17, V. Crede17, J. E. Duboscq17, K. M. Ecklund17, R. Ehrlich17, L. Fields17, L. Gibbons17, B. Gittelman17, R. Gray17, S. W. Gray17, D. L. Hartill17, B. K. Heltsley17, D. Hertz17, C. D. Jones17, J. Kandaswamy17, D. L. Kreinick17, V. E. Kuznetsov17, H. Mahlke-Krüger17, T. O. Meyer17, P. U. E. Onyisi17, J. R. Patterson17, D. Peterson17, E. A. Phillips17, J. Pivarski17, D. Riley17, A. Ryd17, A. J. Sadoff17, H. Schwarthoff17, X. Shi17, M. R. Shepherd17, S. Stroiney17, W. M. Sun17, D. Urner17, T. Wilksen17, K. M. Weaver17, M. Weinberger17, S. B. Athar18, P. Avery18, L. Breva-Newell18, R. Patel18, V. Potlia18, H. Stoeck18, J. Yelton18, P. Rubin19, C. Cawlfield20, B. I. Eisenstein20, G. D. Gollin20, I. Karliner20, D. Kim20, N. Lowrey20, P. Naik20, C. Sedlack20, M. Selen20, E. J. White20, J. Williams20, J. Wiss20, K. W. Edwards21, and D. Besson22 (CLEO Collaboration)
1Luther College, Decorah, Iowa 52101, USA
2University of Minnesota, Minneapolis, Minnesota 55455, USA
3Northwestern University, Evanston, Illinois 60208, USA
4State University of New York at Albany, Albany, New York 12222, USA
5University of Oklahoma, Norman, Oklahoma 73019, USA
6University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
7University of Puerto Rico, Mayaguez, Puerto Rico 00681
8Purdue University, West Lafayette, Indiana 47907, USA
9Rensselaer Polytechnic Institute, Troy, New York 12180, USA
10University of Rochester, Rochester, New York 14627, USA
11Southern Methodist University, Dallas, Texas 75275, USA
12Syracuse University, Syracuse, New York 13244, USA
13Vanderbilt University, Nashville, Tennessee 37235, USA
14Wayne State University, Detroit, Michigan 48202, USA
15Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
16Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
17Cornell University, Ithaca, New York 14853, USA
18University of Florida, Gainesville, Florida 32611, USA
19George Mason University, Fairfax, Virginia 22030, USA
20University of Illinois, Urbana-Champaign, Illinois 61801, USA
21Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada
22University of Kansas, Lawrence, Kansas 66045, USA
Received 12 May 2005; published 30 September 2005
Using 3.08×106 ψ(2S) decays observed in e+e- collisions by the CLEO detector, we present the results of a study of the ψ(2S) decaying into baryon-antibaryon final states. We report the most precise measurements of the following eight modes: pp̅ , ΛΛ̅ , Σ+Σ+̅ (first observation), Σ0Σ0̅ , Ξ-Ξ-̅ , and Ξ0Ξ0̅ (first observation), and place upper limits for the modes Ξ(1530)0Ξ(1530)0̅ and Ω-Ω-̅ .
© 2005 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.72.051108
DOI:
10.1103/PhysRevD.72.051108
PACS:
13.25.Gv, 13.60.Rj, 14.20.Jn
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