Phys. Rev. Lett.
86,
3718–3721
(2001)
Observation of B → φK and B → φK*
R. A. Briere et al. (CLEO Collaboration)
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R. A. Briere1, G. P. Chen1, T. Ferguson1, H. Vogel1, A. Gritsan2, J. P. Alexander3, R. Baker3, C. Bebek3, B. E. Berger3, K. Berkelman3, F. Blanc3, V. Boisvert3, D. G. Cassel3, P. S. Drell3, J. E. Duboscq3, K. M. Ecklund3, R. Ehrlich3, P. Gaidarev3, L. Gibbons3, B. Gittelman3, S. W. Gray3, D. L. Hartill3, B. K. Heltsley3, P. I. Hopman3, L. Hsu3, C. D. Jones3, J. Kandaswamy3, D. L. Kreinick3, M. Lohner3, A. Magerkurth3, T. O. Meyer3, N. B. Mistry3, E. Nordberg3, M. Palmer3, J. R. Patterson3, D. Peterson3, D. Riley3, A. Romano3, J. G. Thayer3, D. Urner3, B. Valant-Spaight3, G. Viehhauser3, A. Warburton3, P. Avery4, C. Prescott4, A. I. Rubiera4, H. Stoeck4, J. Yelton4, G. Brandenburg5, A. Ershov5, D. Y.-J. Kim5, R. Wilson5, T. Bergfeld6, B. I. Eisenstein6, J. Ernst6, G. E. Gladding6, G. D. Gollin6, R. M. Hans6, E. Johnson6, I. Karliner6, M. A. Marsh6, C. Plager6, C. Sedlack6, M. Selen6, J. J. Thaler6, J. Williams6, K. W. Edwards7a,7b, R. Janicek8a,8b, P. M. Patel8a,8b, A. J. Sadoff9, R. Ammar10, A. Bean10, D. Besson10, X. Zhao10, S. Anderson11, V. V. Frolov11, Y. Kubota11, S. J. Lee11, J. J. O'Neill11, R. Poling11, T. Riehle11, A. Smith11, C. J. Stepaniak11, J. Urheim11, S. Ahmed12, M. S. Alam12, S. B. Athar12, L. Jian12, L. Ling12, M. Saleem12, S. Timm12, F. Wappler12, A. Anastassov13, E. Eckhart13, K. K. Gan13, C. Gwon13, T. Hart13, K. Honscheid13, D. Hufnagel13, H. Kagan13, R. Kass13, T. K. Pedlar13, H. Schwarthoff13, J. B. Thayer13, E. von Toerne13, M. M. Zoeller13, S. J. Richichi14, H. Severini14, P. Skubic14, A. Undrus14, V. Savinov15, S. Chen16, J. Fast16, J. W. Hinson16, J. Lee16, D. H. Miller16, E. I. Shibata16, I. P. J. Shipsey16, V. Pavlunin16, D. Cronin-Hennessy17, A. L. Lyon17, E. H. Thorndike17, T. E. Coan18, V. Fadeyev18, Y. S. Gao18, Y. Maravin18, I. Narsky18, R. Stroynowski18, J. Ye18, T. Wlodek18, M. Artuso19, C. Boulahouache19, K. Bukin19, E. Dambasuren19, G. Majumder19, R. Mountain19, S. Schuh19, T. Skwarnicki19, S. Stone19, J. C. Wang19, A. Wolf19, J. Wu19, S. Kopp20, M. Kostin20, A. H. Mahmood21, S. E. Csorna22, I. Danko22, K. W. McLean22, Z. Xu22, R. Godang23, G. Bonvicini24, D. Cinabro24, M. Dubrovin24, S. McGee24, G. J. Zhou24, A. Bornheim25, E. Lipeles25, S. P. Pappas25, M. Schmidtler25, A. Shapiro25, W. M. Sun25, A. J. Weinstein25, D. E. Jaffe26, R. Mahapatra26, G. Masek26, H. P. Paar26, D. M. Asner27, A. Eppich27, T. S. Hill27, and R. J. Morrison27 (CLEO Collaboration)
1Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
2University of Colorado, Boulder, Colorado 80309-0390
3Cornell University, Ithaca, New York 14853
4University of Florida, Gainesville, Florida 32611
5Harvard University, Cambridge, Massachusetts 02138
6University of Illinois, Urbana-Champaign, Illinois 61801
7aCarleton University, Ottawa, Ontario, Canada K1S 5B6
7band the Institute of Particle Physics, Canada
8aMcGill University, Montréal, Québec, Canada H3A 2T8
8band the Institute of Particle Physics, Canada
9Ithaca College, Ithaca, New York 14850
10University of Kansas, Lawrence, Kansas 66045
11University of Minnesota, Minneapolis, Minnesota 55455
12State University of New York at Albany, Albany, New York 12222
13The Ohio State University, Columbus, Ohio 43210
14University of Oklahoma, Norman, Oklahoma 73019
15University of Pittsburgh, Pittsburgh, Pennsylvania 15260
16Purdue University, West Lafayette, Indiana 47907
17University of Rochester, Rochester, New York 14627
18Southern Methodist University, Dallas, Texas 75275
19Syracuse University, Syracuse, New York 13244
20University of Texas, Austin, Texas 78712
21University of Texas-Pan American, Edinburg, Texas 78539
22Vanderbilt University, Nashville, Tennessee 37235
23Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
24Wayne State University, Detroit, Michigan 48202
25California Institute of Technology, Pasadena, California 91125
26University of California, San Diego, La Jolla, California 92093
27University of California, Santa Barbara, California 93106
Received 18 January 2001; published in the issue dated 23 April 2001
We have studied two-body charmless hadronic decays of B mesons into the final states φK and φK*. Using 9.7 million BB̅ pairs collected with the CLEO II detector, we observe the decays B-→φK- and B0→φK*0 with the following branching fractions: B(B-→φK-) = (5.5-1.8+2.1±0.6)×10-6 and B(B0→φK*0) = (11.5-3.7-1.7+4.5+1.8)×10-6. We also see evidence for the decays B0→φK0 and B-→φK*-. However, since the statistical significance is not overwhelming for these modes, we determine upper limits of <12.3×10-6 and <22.5×10-6 ( 90% confidence level), respectively.
© 2001 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.3718
DOI:
10.1103/PhysRevLett.86.3718
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