Phys. Rev. Lett.
88,
101803
(2002)
[5 pages]
Observation of Exclusive B̅ →D(*)K*- Decays
R. Mahapatra et al. (CLEO Collaboration)
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R. Mahapatra1, H. N. Nelson1, R. A. Briere2, G. P. Chen2, T. Ferguson2, G. Tatishvili2, H. Vogel2, N. E. Adam3, J. P. Alexander3, C. Bebek3, K. Berkelman3, F. Blanc3, V. Boisvert3, D. G. Cassel3, P. S. Drell3, J. E. Duboscq3, K. M. Ecklund3, R. Ehrlich3, L. Gibbons3, B. Gittelman3, S. W. Gray3, D. L. Hartill3, B. K. Heltsley3, L. Hsu3, C. D. Jones3, J. Kandaswamy3, D. L. Kreinick3, A. Magerkurth3, H. Mahlke-Krüger3, T. O. Meyer3, N. B. Mistry3, E. Nordberg3, M. Palmer3, J. R. Patterson3, D. Peterson3, J. Pivarski3, D. Riley3, A. J. Sadoff3, H. Schwarthoff3, M. R. Shepherd3, J. G. Thayer3, D. Urner3, B. Valant-Spaight3, G. Viehhauser3, A. Warburton3, M. Weinberger3, S. B. Athar4, P. Avery4, H. Stoeck4, J. Yelton4, G. Brandenburg5, A. Ershov5, D. Y.-J. Kim5, R. Wilson5, K. Benslama6, B. I. Eisenstein6, J. Ernst6, G. D. Gollin6, R. M. Hans6, I. Karliner6, N. Lowrey6, M. A. Marsh6, C. Plager6, C. Sedlack6, M. Selen6, J. J. Thaler6, J. Williams6, K. W. Edwards7, R. Ammar8, D. Besson8, X. Zhao8, S. Anderson9, V. V. Frolov9, Y. Kubota9, S. J. Lee9, S. Z. Li9, R. Poling9, A. Smith9, C. J. Stepaniak9, J. Urheim9, S. Ahmed10, M. S. Alam10, L. Jian10, M. Saleem10, F. Wappler10, E. Eckhart11, K. K. Gan11, C. Gwon11, T. Hart11, K. Honscheid11, D. Hufnagel11, H. Kagan11, R. Kass11, T. K. Pedlar11, J. B. Thayer11, E. von Toerne11, T. Wilksen11, M. M. Zoeller11, H. Muramatsu12, S. J. Richichi12, H. Severini12, P. Skubic12, S. A. Dytman13, S. Nam13, V. Savinov13, S. Chen14, J. W. Hinson14, J. Lee14, D. H. Miller14, V. Pavlunin14, E. I. Shibata14, I. P. J. Shipsey1,4, D. Cronin-Hennessy15, A. L. Lyon15, C. S. Park15, W. Park15, E. H. Thorndike15, T. E. Coan16, Y. S. Gao16, F. Liu16, Y. Maravin16, I. Narsky16, R. Stroynowski16, J. Ye16, M. Artuso17, C. Boulahouache17, K. Bukin17, E. Dambasuren17, G. C. Moneti17, R. Mountain17, T. Skwarnicki17, S. Stone17, J. C. Wang17, A. H. Mahmood18, S. E. Csorna19, I. Danko19, Z. Xu19, G. Bonvicini20, D. Cinabro20, M. Dubrovin20, S. McGee20, A. Bornheim21, E. Lipeles21, S. P. Pappas21, A. Shapiro21, W. M. Sun21, A. J. Weinstein21, G. Masek22, and H. P. Paar22 (CLEO Collaboration)
1University of California, Santa Barbara, California 93106
2Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
3Cornell University, Ithaca, New York 14853
4University of Florida, Gainesville, Florida 32611
5Harvard University, Cambridge, Massachusetts 02138
6University of Illinois, Urbana-Champaign, Illinois 61801
7Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Toronto, Ontario, Canada M5S 1A7
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
13University of Pittsburgh, Pittsburgh, Pennsylvania 15260
14Purdue University, West Lafayette, Indiana 47907
15University of Rochester, Rochester, New York 14627
16Southern Methodist University, Dallas, Texas 75275
17Syracuse University, Syracuse, New York 13244
18University of Texas–Pan American, Edinburg, Texas 78539
19Vanderbilt University, Nashville, Tennessee 37235
20Wayne State University, Detroit, Michigan 48202
21California Institute of Technology, Pasadena, California 91125
22University of California–San Diego, La Jolla, California 92093
Received 21 December 2001; published 26 February 2002
We report the first observation of the exclusive decays B̅ →D(*)K*-, using 9.66×106 BB̅ pairs collected at the ϒ(4S) with the CLEO detector. We measure the following branching fractions: B(B-→D0K*-) = (6.1±1.6±1.7)×10-4, B(B̅ 0→D+K*-) = (3.7±1.5±1.0)×10-4, B(B̅ 0→D*+K*-) = (3.8±1.3±0.8)×10-4, and B(B-→D*0K*-) = (7.7±2.2±2.6)×10-4. The B̅ →D*K*- branching ratios are the averages of those corresponding to the 00 and 11 helicity states. The errors shown are statistical and systematic, respectively.
© 2002 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.101803
DOI:
10.1103/PhysRevLett.88.101803
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