Phys. Rev. D
76,
117102
(2007)
[5 pages]
Measurement of upper limits for Υ→γ+R decays
J. L. Rosner et al. CLEO Collaboration
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J. L. Rosner1, N. E. Adam2, J. P. Alexander2, D. G. Cassel2, J. E. Duboscq2, 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, P. U. E. Onyisi2, J. R. Patterson2, D. Peterson2, 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, R. Patel3, V. Potlia3, J. Yelton3, P. Rubin4, C. Cawlfield5, B. I. Eisenstein5, I. Karliner5, D. Kim5, N. Lowrey5, P. Naik5, M. Selen5, E. J. White5, J. Wiss5, R. E. Mitchell6, M. R. Shepherd6, D. Besson7, S. Henderson7,*, T. K. Pedlar8, D. Cronin-Hennessy9, K. Y. Gao9, J. Hietala9, Y. Kubota9, T. Klein9, B. W. Lang9, R. Poling9, A. W. Scott9, A. Smith9, P. Zweber9, S. Dobbs10, Z. Metreveli10, K. K. Seth10, A. Tomaradze10, J. Ernst11, K. M. Ecklund12, H. Severini13, W. Love14, V. Savinov14, O. Aquines15, Z. Li15, A. Lopez15, S. Mehrabyan15, 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, D. Hu17, B. Moziak17, J. Napolitano17, Q. He18, J. Insler18, H. Muramatsu18, C. S. Park18, E. H. Thorndike18, F. Yang18, T. E. Coan19, Y. S. Gao19, M. Artuso20, S. Blusk20, J. Butt20, J. Li20, N. Menaa20, G. C. Moneti20, R. Mountain20, S. Nisar20, K. Randrianarivony20, R. Sia20, T. Skwarnicki20, S. Stone20, J. C. Wang20, K. Zhang20, G. Bonvicini21, D. Cinabro21, M. Dubrovin21, A. Lincoln21, D. M. Asner22, K. W. Edwards22, R. A. Briere23, T. Ferguson23, G. Tatishvili23, H. Vogel23, and M. E. Watkins23 (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
12State University of New York at Buffalo, Buffalo, New York 14260, USA
13University of Oklahoma, Norman, Oklahoma 73019, USA
14University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
15University of Puerto Rico, Mayaguez 00681, Puerto Rico
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
21Wayne State University, Detroit, Michigan 48202, USA
22Carleton University, Ottawa, Ontario K1S 5B6, Canada
23Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
Received 19 April 2007; revised 6 October 2007; published 7 December 2007
We report on a study of exclusive radiative decays Υ(nS)→γ+R (n=1, 2, 3), with R a narrow resonant hadronic state decaying into four or more charged particles (plus possible neutrals). Using data collected from the CLEO III detector at the Cornell Electron Storage Ring, we present upper limits of order 10-4 for such bottomonium two-body decays as a function of the mass MR recoiling opposite the photon.
© 2007 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.117102
DOI:
10.1103/PhysRevD.76.117102
PACS:
13.20.Gd, 13.20.−v, 13.40.Hq
*Current address: Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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