Phys. Rev. Lett.
96,
092003
(2006)
[5 pages]
Dielectron Widths of the Υ(1S,2S,3S) Resonances
J. L. Rosner et al. CLEO Collaboration
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J. L. Rosner1, N. E. Adam2, J. P. Alexander2, K. Berkelman2, D. G. Cassel2, J. E. Duboscq2, K. M. Ecklund2, R. Ehrlich2, L. Fields2, R. S. Galik2, L. Gibbons2, R. Gray2, S. W. Gray2, D. L. Hartill2, B. K. Heltsley2, D. Hertz2, C. D. Jones2, J. Kandaswamy2, D. L. Kreinick2, V. E. Kuznetsov2, H. Mahlke-Krüger2, T. O. Meyer2, P. U. E. Onyisi2, J. R. Patterson2, D. Peterson2, E. A. Phillips2, J. Pivarski2, D. Riley2, A. Ryd2, A. J. Sadoff2, H. Schwarthoff2, X. Shi2, S. Stroiney2, W. M. Sun2, T. Wilksen2, M. Weinberger2, S. B. Athar3, P. Avery3, L. Breva-Newell3, R. Patel3, V. Potlia3, H. Stoeck3, J. Yelton3, P. Rubin4, C. Cawlfield5, B. I. Eisenstein5, I. Karliner5, D. Kim5, N. Lowrey5, P. Naik5, C. Sedlack5, M. Selen5, E. J. White5, J. Wiss5, M. R. Shepherd6, D. Besson7, T. K. Pedlar8, D. Cronin-Hennessy9, K. Y. Gao9, D. T. Gong9, J. Hietala9, Y. Kubota9, T. Klein9, B. W. Lang9, R. Poling9, A. W. Scott9, A. Smith9, S. Dobbs10, Z. Metreveli10, K. K. Seth10, A. Tomaradze10, P. Zweber10, J. Ernst11, K. Arms12, H. Severini13, S. A. Dytman14, W. Love14, S. Mehrabyan14, V. Savinov14, O. Aquines15, Z. Li15, A. Lopez15, H. Mendez15, J. Ramirez15, G. S. Huang16, D. H. Miller16, V. Pavlunin16, B. Sanghi16, I. P. J. Shipsey16, B. Xin16, G. S. Adams17, M. Anderson17, J. P. Cummings17, I. Danko17, J. Napolitano17, Q. He18, J. Insler18, H. Muramatsu18, C. S. Park18, E. H. Thorndike18, T. E. Coan19, Y. S. Gao19, F. Liu19, R. Stroynowski19, M. Artuso20, S. Blusk20, J. Butt20, J. Li20, N. Menaa20, R. Mountain20, S. Nisar20, K. Randrianarivony20, R. Redjimi20, R. Sia20, T. Skwarnicki20, S. Stone20, J. C. Wang20, K. Zhang20, S. E. Csorna21, G. Bonvicini22, D. Cinabro22, M. Dubrovin22, A. Lincoln22, D. M. Asner23, K. W. Edwards23, R. A. Briere24, J. Chen24, T. Ferguson24, G. Tatishvili24, H. Vogel24, and M. E. Watkins24 (CLEO Collaboration)
1Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
2Cornell University, Ithaca, New York 14853, USA
3University of Florida, Gainesville, Florida 32611, USA
4George Mason University, Fairfax, Virginia 22030, USA
5University of Illinois, Urbana-Champaign, Illinois 61801, USA
6Indiana University, Bloomington, Indiana 47405, USA
7University of Kansas, Lawrence, Kansas 66045, USA
8Luther College, Decorah, Iowa 52101, USA
9University of Minnesota, Minneapolis, Minnesota 55455, USA
10Northwestern University, Evanston, Illinois 60208, USA
11State University of New York at Albany, Albany, New York 12222, USA
12Ohio State University, Columbus, Ohio 43210, USA
13University of Oklahoma, Norman, Oklahoma 73019, USA
14University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
15University of Puerto Rico, Mayaguez, Puerto Rico 00681
16Purdue University, West Lafayette, Indiana 47907, USA
17Rensselaer Polytechnic Institute, Troy, New York 12180, USA
18University of Rochester, Rochester, New York 14627, USA
19Southern Methodist University, Dallas, Texas 75275, USA
20Syracuse University, Syracuse, New York 13244, USA
21Vanderbilt University, Nashville, Tennessee 37235, USA
22Wayne State University, Detroit, Michigan 48202, USA
23Carleton University, Ottawa, Ontario, Canada K1S 5B6
24Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
See Also:
Erratum
Received 21 December 2005; published 9 March 2006
We determine the dielectron widths of the Υ(1S), Υ(2S), and Υ(3S) resonances with better than 2% precision by integrating the cross section of e+e-→Υ over the e+e- center-of-mass energy. Using e+e- energy scans of the Υ resonances at the Cornell Electron Storage Ring and measuring Υ production with the CLEO detector, we find dielectron widths of 1.252±0.004(σstat)±0.019(σsyst) keV, 0.581±0.004±0.009 keV, and 0.413±0.004±0.006 keV for the Υ(1S), Υ(2S), and Υ(3S), respectively.
© 2006 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.96.092003
DOI:
10.1103/PhysRevLett.96.092003
PACS:
14.40.Nd, 12.20.Fv, 13.25.Gv
See Also
Erratum:
J. L. Rosner et al. CLEO Collaboration,
Erratum: Dielectron Widths of the Υ(1S,2S,3S) Resonances [Phys. Rev. Lett. 96, 092003 (2006)],
Phys. Rev. Lett. 99, 129902 (2007).
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