Phys. Rev. D
62,
051101(R)
(2000)
[5 pages]
Study of exclusive two-body B0 meson decays to charmonium
P. Avery et al. (CLEO Collaboration)
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P. Avery1, C. Prescott1, A. I. Rubiera1, J. Yelton1, J. Zheng1, G. Brandenburg2, A. Ershov2, Y. S. Gao2, D. Y.-J. Kim2, R. Wilson2, T. E. Browder3, Y. Li3, J. L. Rodriguez3, H. Yamamoto3, T. Bergfeld4, B. I. Eisenstein4, J. Ernst4, G. E. Gladding4, G. D. Gollin4, R. M. Hans4, E. Johnson4, I. Karliner4, M. A. Marsh4, M. Palmer4, C. Plager4, C. Sedlack4, M. Selen4, J. J. Thaler4, J. Williams4, K. W. Edwards5, R. Janicek6, P. M. Patel6, A. J. Sadoff7, R. Ammar8, A. Bean8, D. Besson8, R. Davis8, N. Kwak8, X. Zhao8, S. Anderson9, V. V. Frolov9, Y. Kubota9, S. J. Lee9, R. Mahapatra9, J. J. O’Neill9, R. Poling9, T. Riehle9, A. Smith9, C. J. Stepaniak9, J. Urheim9, S. Ahmed10, M. S. Alam10, S. B. Athar10, L. Jian10, L. Ling10, M. Saleem10, S. Timm10, F. Wappler10, A. Anastassov11, J. E. Duboscq11, E. Eckhart11, K. K. Gan11, C. Gwon11, T. Hart11, K. Honscheid11, D. Hufnagel11, H. Kagan11, R. Kass11, T. K. Pedlar11, H. Schwarthoff11, J. B. Thayer11, E. von Toerne11, M. M. Zoeller11, S. J. Richichi12, H. Severini12, P. Skubic12, A. Undrus12, S. Chen13, J. Fast13, J. W. Hinson13, J. Lee13, D. H. Miller13, E. I. Shibata13, I. P. J. Shipsey13, V. Pavlunin13, D. Cronin-Hennessy14, A. L. Lyon14, E. H. Thorndike14, C. P. Jessop15, H. Marsiske15, M. L. Perl15, V. Savinov15, D. Ugolini15, X. Zhou15, T. E. Coan16, V. Fadeyev16, Y. Maravin16, I. Narsky16, R. Stroynowski16, J. Ye16, T. Wlodek16, M. Artuso17, R. Ayad17, C. Boulahouache17, K. Bukin17, E. Dambasuren17, S. Karamov17, G. Majumder17, G. C. Moneti17, R. Mountain17, S. Schuh17, T. Skwarnicki17, S. Stone17, G. Viehhauser17, J. C. Wang17, A. Wolf17, J. Wu17, S. Kopp18, A. H. Mahmood19, S. E. Csorna20, I. Danko20, K. W. McLean20, Sz. Márka20, Z. Xu20, R. Godang21, K. Kinoshita21,*, I. C. Lai21, S. Schrenk21, G. Bonvicini22, D. Cinabro22, S. McGee22, L. P. Perera22, G. J. Zhou22, E. Lipeles23, S. P. Pappas23, M. Schmidtler23, A. Shapiro23, W. M. Sun23, A. J. Weinstein23, F. Würthwein23,†, D. E. Jaffe24, G. Masek24, H. P. Paar24, E. M. Potter24, S. Prell24, V. Sharma24, D. M. Asner25, A. Eppich25, T. S. Hill25, R. J. Morrison25, R. A. Briere26, T. Ferguson26, H. Vogel26, B. H. Behrens27, W. T. Ford27, A. Gritsan27, J. Roy27, J. G. Smith27, J. P. Alexander28, R. Baker28, C. Bebek28, B. E. Berger28, K. Berkelman28, F. Blanc28, V. Boisvert28, D. G. Cassel28, M. Dickson28, P. S. Drell28, K. M. Ecklund28, R. Ehrlich28, A. D. Foland28, P. Gaidarev28, L. Gibbons28, B. Gittelman28, S. W. Gray28, D. L. Hartill28, B. K. Heltsley28, P. I. Hopman28, C. D. Jones28, D. L. Kreinick28, M. Lohner28, A. Magerkurth28, T. O. Meyer28, N. B. Mistry28, E. Nordberg28, J. R. Patterson28, D. Peterson28, D. Riley28, J. G. Thayer28, P. G. Thies28, B. Valant-Spaight28, and A. Warburton28 (CLEO Collaboration)
1University of Florida, Gainesville, Florida 32611
2Harvard University, Cambridge, Massachusetts 02138
3University of Hawaii at Manoa, Honolulu, Hawaii 96822
4University of Illinois, Urbana-Champaign, Illinois 61801
5Carleton University, Ottawa, Ontario, Canada K1S 5B6the Institute of Particle Physics, Canada
6McGill University, Montréal, Québec, Canada H3A 2T8the Institute of Particle Physics, Canada
7Ithaca College, Ithaca, New York 14850
8University of Kansas, Lawrence, Kansas 66045
9University of Minnesota, Minneapolis, Minnesota 55455
10State University of New York at Albany, Albany, New York 12222
11Ohio State University, Columbus, Ohio 43210
12University of Oklahoma, Norman, Oklahoma 73019
13Purdue University, West Lafayette, Indiana 47907
14University of Rochester, Rochester, New York 14627
15Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309
16Southern Methodist University, Dallas, Texas 75275
17Syracuse University, Syracuse, New York 13244
18University of Texas, Austin, Texas 78712
19University of Texas–Pan American, Edinburg, Texas 78539
20Vanderbilt University, Nashville, Tennessee 37235
21Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
22Wayne State University, Detroit, Michigan 48202
23California Institute of Technology, Pasadena, California 91125
24University of California, San Diego, La Jolla, California 92093
25University of California, Santa Barbara, California 93106
26Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
27University of Colorado, Boulder, Colorado 80309-0390
28Cornell University, Ithaca, New York 14853
Received 28 April 2000; published 17 July 2000
We present a study of three B0 decay modes useful for time-dependent CP asymmetry measurements. From a sample of 9.7×106 BB̅ meson pairs collected with the CLEO detector, we have reconstructed B0→J/ψKS0, B0→χc1KS0, and B0→J/ψπ0 decays. The latter two decay modes have been observed for the first time. We describe a KS0→π0π0 detection technique and its application to the reconstruction of the decay B0→J/ψKS0. Combining the results obtained using KS0→π+π- and KS0→π0π0 decays, we determine B(B0→J/ψK0)=(9.5±0.8±0.6)×10-4, where the first uncertainty is statistical and the second one is systematic. We also obtain B(B0→χc1K0)=(3.9-1.3+1.9±0.4)×10-4 and B(B0→J/ψπ0)=(2.5-0.9+1.1±0.2)×10-5.
© 2000 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.051101
DOI:
10.1103/PhysRevD.62.051101
*Permanent address: University of Cincinnati, Cincinnati, OH 45221. †Permanent address: Massachusetts Institute of Technology, Cambridge, MA 02139.
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