Phys. Rev. Lett.
94,
232002
(2005)
[5 pages]
Branching Fractions for ψ(2S)-to-J/ψ Transitions
N. E. Adam et al. CLEO Collaboration
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N. E. Adam1, J. P. Alexander1, K. Berkelman1, D. G. Cassel1, V. Crede1, J. E. Duboscq1, K. M. Ecklund1, R. Ehrlich1, L. Fields1, R. S. Galik1, L. Gibbons1, B. Gittelman1, R. Gray1, S. W. Gray1, D. L. Hartill1, B. K. Heltsley1, D. Hertz1, L. Hsu1, C. D. Jones1, J. Kandaswamy1, D. L. Kreinick1, V. E. Kuznetsov1, H. Mahlke-Krüger1, T. O. Meyer1, P. U. E. Onyisi1, J. R. Patterson1, D. Peterson1, E. A. Phillips1, J. Pivarski1, D. Riley1, A. Ryd1, A. J. Sadoff1, H. Schwarthoff1, M. R. Shepherd1, S. Stroiney1, W. M. Sun1, D. Urner1, T. Wilksen1, M. Weinberger1, S. B. Athar2, P. Avery2, L. Breva-Newell2, R. Patel2, V. Potlia2, H. Stoeck2, J. Yelton2, P. Rubin3, C. Cawlfield4, B. I. Eisenstein4, G. D. Gollin4, I. Karliner4, D. Kim4, N. Lowrey4, P. Naik4, C. Sedlack4, M. Selen4, J. Williams4, J. Wiss4, K. W. Edwards5, D. Besson6, T. K. Pedlar7, D. Cronin-Hennessy8, K. Y. Gao8, D. T. Gong8, Y. Kubota8, T. Klein8, B. W. Lang8, S. Z. Li8, R. Poling8, A. W. Scott8, A. Smith8, S. Dobbs9, Z. Metreveli9, K. K. Seth9, A. Tomaradze9, P. Zweber9, J. Ernst10, A. H. Mahmood10, H. Severini11, D. M. Asner12, S. A. Dytman12, W. Love12, S. Mehrabyan12, J. A. Mueller12, V. Savinov12, Z. Li13, A. Lopez13, H. Mendez13, J. Ramirez13, G. S. Huang14, D. H. Miller14, V. Pavlunin14, B. Sanghi14, E. I. Shibata14, I. P. J. Shipsey14, G. S. Adams15, M. Chasse15, M. Cravey15, J. P. Cummings15, I. Danko15, J. Napolitano15, Q. He16, H. Muramatsu16, C. S. Park16, W. Park16, E. H. Thorndike16, T. E. Coan17, Y. S. Gao17, F. Liu17, M. Artuso18, C. Boulahouache18, S. Blusk18, J. Butt18, E. Dambasuren18, O. Dorjkhaidav18, J. Li18, N. Menaa18, R. Mountain18, R. Nandakumar18, R. Redjimi18, R. Sia18, T. Skwarnicki18, S. Stone18, J. C. Wang18, K. Zhang18, S. E. Csorna19, G. Bonvicini20, D. Cinabro20, M. Dubrovin20, R. A. Briere21, G. P. Chen21, J. Chen21, T. Ferguson21, G. Tatishvili21, H. Vogel21, M. E. Watkins21, and J. L. Rosner22 (CLEO Collaboration)
1Cornell University, Ithaca, New York 14853, USA
2University of Florida, Gainesville, Florida 32611, USA
3George Mason University, Fairfax, Virginia 22030, USA
4University of Illinois, Urbana-Champaign, Illinois 61801, USA
5Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada
6University of Kansas, Lawrence, Kansas 66045, USA
7Luther College, Decorah, Iowa 52101, USA
8University of Minnesota, Minneapolis, Minnesota 55455, USA
9Northwestern University, Evanston, Illinois 60208, USA
10State University of New York at Albany, Albany, New York 12222, USA
11University of Oklahoma, Norman, Oklahoma 73019, USA
12University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA
13University of Puerto Rico, Mayaguez, Puerto Rico 00681
14Purdue University, West Lafayette, Indiana 47907, USA
15Rensselaer Polytechnic Institute, Troy, New York 12180, USA
16University of Rochester, Rochester, New York 14627, USA
17Southern Methodist University, Dallas, Texas 75275, USA
18Syracuse University, Syracuse, New York 13244, USA
19Vanderbilt University, Nashville, Tennessee 37235, USA
20Wayne State University, Detroit, Michigan 48202, USA
21Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
22Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
Received 16 March 2005; published 17 June 2005
We describe new measurements of the inclusive and exclusive branching fractions for ψ(2S) transitions to J/ψ using e+e- collision data collected with the CLEO detector operating at CESR. All branching fractions and ratios of branching fractions reported here represent either the most precise measurements to date or the first direct measurements. Indirectly and in combination with other CLEO measurements, we determine B(χcJ→γJ/ψ) and B[ψ(2S)→ light hadrons].
© 2005 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.94.232002
DOI:
10.1103/PhysRevLett.94.232002
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