Phys. Rev. Lett.
92,
222002
(2004)
[5 pages]
Observation of the Hadronic Transitions χb1,2(2P)→ωΥ(1S)
D. Cronin-Hennessy et al. CLEO Collaboration
Show All Authors/Affiliations
Hide All Authors/Affiliations
D. Cronin-Hennessy1, C. S. Park1, W. Park1, J. B. Thayer1, E. H. Thorndike1, T. E. Coan2, Y. S. Gao2, F. Liu2, R. Stroynowski2, M. Artuso3, C. Boulahouache3, S. Blusk3, E. Dambasuren3, O. Dorjkhaidav3, R. Mountain3, H. Muramatsu3, R. Nandakumar3, T. Skwarnicki3, S. Stone3, J. C. Wang3, A. H. Mahmood4, S. E. Csorna5, G. Bonvicini6, D. Cinabro6, M. Dubrovin6, A. Bornheim7, E. Lipeles7, S. P. Pappas7, A. Shapiro7, W. M. Sun7, A. J. Weinstein7, R. A. Briere8, G. P. Chen8, T. Ferguson8, G. Tatishvili8, H. Vogel8, M. E. Watkins8, N. E. Adam9, J. P. Alexander9, K. Berkelman9, V. Boisvert9, D. G. Cassel9, J. E. Duboscq9, K. M. Ecklund9, R. Ehrlich9, R. S. Galik9, L. Gibbons9, B. Gittelman9, S. W. Gray9, D. L. Hartill9, B. K. Heltsley9, L. Hsu9, C. D. Jones9, J. Kandaswamy9, D. L. Kreinick9, V. E. Kuznetsov9, A. Magerkurth9, H. Mahlke-Krüger9, T. O. Meyer9, N. B. Mistry9, J. R. Patterson9, T. K. Pedlar9, D. Peterson9, J. Pivarski9, S. J. Richichi9, D. Riley9, A. J. Sadoff9, H. Schwarthoff9, M. R. Shepherd9, J. G. Thayer9, D. Urner9, T. Wilksen9, A. Warburton9, M. Weinberger9, S. B. Athar10, P. Avery10, L. Breva-Newell10, V. Potlia10, H. Stoeck10, J. Yelton10, B. I. Eisenstein11, G. D. Gollin11, I. Karliner11, N. Lowrey11, C. Plager11, C. Sedlack11, M. Selen11, J. J. Thaler11, J. Williams11, K. W. Edwards12, D. Besson13, K. Y. Gao14, D. T. Gong14, Y. Kubota14, S. Z. Li14, R. Poling14, A. W. Scott14, A. Smith14, C. J. Stepaniak14, J. Urheim14, Z. Metreveli15, K. K. Seth15, A. Tomaradze15, P. Zweber15, J. Ernst16, K. Arms17, E. Eckhart17, K. K. Gan17, C. Gwon17, H. Severini18, P. Skubic18, S. A. Dytman19, J. A. Mueller19, S. Nam19, V. Savinov19, G. S. Huang20, D. H. Miller20, V. Pavlunin20, B. Sanghi20, E. I. Shibata20, I. P. J. Shipsey20, and I. Danko21 (CLEO Collaboration)
1University of Rochester, Rochester, New York 14627, USA
2Southern Methodist University, Dallas, Texas 75275, USA
3Syracuse University, Syracuse, New York 13244, USA
4University of Texas–Pan American, Edinburg, Texas 78539, USA
5Vanderbilt University, Nashville, Tennessee 37235, USA
6Wayne State University, Detroit, Michigan 48202, USA
7California Institute of Technology, Pasadena, California 91125, USA
8Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
9Cornell University, Ithaca, New York 14853, USA
10University of Florida, Gainesville, Florida 32611, USA
11University of Illinois, Urbana-Champaign, Illinois 61801, USA
12Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada
13University of Kansas, Lawrence, Kansas 66045, USA
14University of Minnesota, Minneapolis, Minnesota 55455, USA
15Northwestern University, Evanston, Illinois 60208, USA
16State University of New York at Albany, Albany, New York 12222, USA
17The Ohio State University, Columbus, Ohio 43210, USA
18University of Oklahoma, Norman, Oklahoma 73019, USA
19University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
20Purdue University, West Lafayette, Indiana 47907, USA
21Rensselaer Polytechnic Institute, Troy, New York 12180, USA
Received 13 November 2003; published 3 June 2004
The CLEO Collaboration has made the first observations of hadronic transitions among bottomonium (bb̅ ) states other than the dipion transitions among Υ(nS) states. In our study of Υ(3S) decays, we find a significant signal for Υ(3S)→γωΥ(1S) that is consistent with radiative decays Υ(3S)→γχb1,2(2P), followed by χb1,2(2P)→ωΥ(1S). The branching ratios we obtain are B[χb1(2P)→ωΥ(1S)]=(1.63-0.31-0.15+0.35+0.16)% and B[χb2(2P)→ωΥ(1S)]=(1.10-0.28-0.10+0.32+0.11)%, in which the first error is statistical and the second is systematic.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.222002
DOI:
10.1103/PhysRevLett.92.222002
|
|
