Phys. Rev. Lett.
80,
2289–2293
(1998)
Search for Inclusive b→sl+l-
S. Glenn et al. (CLEO Collaboration)
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S. Glenn1, S. D. Johnson1, Y. Kwon1,*, S. Roberts1, E. H. Thorndike1, C. P. Jessop2, K. Lingel2, H. Marsiske2, M. L. Perl2, V. Savinov2, D. Ugolini2, R. Wang2, X. Zhou2, T. E. Coan3, V. Fadeyev3, I. Korolkov3, Y. Maravin3, I. Narsky3, V. Shelkov3, J. Staeck3, R. Stroynowski3, I. Volobouev3, J. Ye3, M. Artuso4, A. Efimov4, M. Goldberg4, D. He4, S. Kopp4, G. C. Moneti4, R. Mountain4, S. Schuh4, T. Skwarnicki4, S. Stone4, G. Viehhauser4, X. Xing4, J. Bartelt5, S. E. Csorna5, V. Jain5,†, K. W. McLean5, S. Marka5, R. Godang6, K. Kinoshita6, I. C. Lai6, P. Pomianowski6, S. Schrenk6, G. Bonvicini7, D. Cinabro7, R. Greene7, L. P. Perera7, G. J. Zhou7, B. Barish8, M. Chadha8, S. Chan8, G. Eigen8, J. S. Miller8, C. O'Grady8, M. Schmidtler8, J. Urheim8, A. J. Weinstein8, F. Würthwein8, D. W. Blis9, G. Masek9, H. P. Paar9, S. Prell9, V. Sharma9, D. M. Asner10, J. Gronberg10, T. S. Hill10, D. J. Lange10, S. Menary10, R. J. Morrison10, H. N. Nelson10, T. K. Nelson10, C. Qiao10, J. D. Richman10, D. Roberts10, A. Ryd10, M. S. Witherell10, R. Balest11, B. H. Behrens11, W. T. Ford11, H. Park11, J. Roy11, J. G. Smith11, J. P. Alexander12, C. Bebek12, B. E. Berger12, K. Berkelman12, K. Bloom12, D. G. Cassel12, H. A. Cho12, D. S. Crowcroft12, M. Dickson12, P. S. Drell12, K. M. Ecklund12, R. Ehrlich12, A. D. Foland12, P. Gaidarev12, L. Gibbons12, B. Gittelman12, S. W. Gray12, D. L. Hartill12, B. K. Heltsley12, P. I. Hopman12, J. Kandaswamy12, P. C. Kim12, D. L. Kreinick12, T. Lee12, Y. Liu12, N. B. Mistry12, C. R. Ng12, E. Nordberg12, M. Ogg12,‡, J. R. Patterson12, D. Peterson12, D. Riley12, A. Soffer12, B. Valant-Spaight12, C. Ward12, M. Athanas13, P. Avery13, C. D. Jones13, M. Lohner13, C. Prescott13, J. Yelton13, J. Zheng13, G. Brandenburg14, R. A. Briere14, A. Ershov14, Y. S. Gao14, D. Y.-J. Kim14, R. Wilson14, H. Yamamoto14, T. E. Browder15, Y. Li15, J. L. Rodriguez15, T. Bergfeld16, B. I. Eisenstein16, J. Ernst16, G. E. Gladding16, G. D. Gollin16, R. M. Hans16, E. Johnson16, I. Karliner16, M. A. Marsh16, M. Palmer16, M. Selen16, J. J. Thaler16, K. W. Edwards17, A. Bellerive18, R. Janicek18, D. B. MacFarlane18, P. M. Patel18, A. J. Sadoff19, R. Ammar20, P. Baringer20, A. Bean20, D. Besson20, D. Coppage20, C. Darling20, R. Davis20, N. Hancock20, S. Kotov20, I. Kravchenko20, N. Kwak20, S. Anderson21, Y. Kubota21, S. J. Lee21, J. J. O'Neill21, S. Patton21, R. Poling21, T. Riehle21, A. Smith21, M. S. Alam22, S. B. Athar22, Z. Ling22, A. H. Mahmood22, H. Severini22, S. Timm22, F. Wappler22, A. Anastassov23, J. E. Duboscq23, D. Fujino23,§, K. K. Gan23, T. Hart23, K. Honscheid23, H. Kagan23, R. Kass23, J. Lee23, M. B. Spencer23, M. Sung23, A. Undrus23,**, R. Wanke23, A. Wolf23, M. M. Zoeller23, B. Nemati24, S. J. Richichi24, W. R. Ross24, P. Skubic24, M. Bishai25, J. Fast25, J. W. Hinson25, N. Menon25, D. H. Miller25, E. I. Shibata25, I. P. J. Shipsey25, and M. Yurko25 (CLEO Collaboration)
1University of Rochester, Rochester, New York 14627
2Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309
3Southern Methodist University, Dallas, Texas 75275
4Syracuse University, Syracuse, New York 13244
5Vanderbilt University, Nashville, Tennessee 37235
6Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
7Wayne State University, Detroit, Michigan 48202
8California Institute of Technology, Pasadena, California 91125
9University of California, San Diego, La Jolla, California 92093
10University of California, Santa Barbara, California 93106
11University of Colorado, Boulder, Colorado 80309-0390
12Cornell University, Ithaca, New York 14853
13University of Florida, Gainesville, Florida 32611
14Harvard University, Cambridge, Massachusetts 02138
15University of Hawaii at Manoa, Honolulu, Hawaii 96822
16University of Illinois, Champaign-Urbana, Illinois 61801
17Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics, Canada
18McGill University, Montréal, Québec, Canada H3A 2T8 and the Institute of Particle Physics, Canada
19Ithaca College, Ithaca, New York 14850
20University of Kansas, Lawrence, Kansas 66045
21University of Minnesota, Minneapolis, Minnesota 55455
22State University of New York at Albany, Albany, New York 12222
23Ohio State University, Columbus, Ohio 43210
24University of Oklahoma, Norman, Oklahoma 73019
25Purdue University, West Lafayette, Indiana 47907
Received 1 October 1997; published in the issue dated 16 March 1998
We have searched for the effective flavor changing neutral-current decays b→sl+l- using an inclusive method. We set upper limits on the branching ratios B(b→se+e-)<5.7×10-5, B(b→sμ+μ-)<5.8×10-5, and B(b→se±μ∓)<2.2×10-5 [at 90% confidence level (C.L.)]. Combing the dielectron and dimuon decay modes we find B(b→sl+l-)<4.2×10-5 (at 90% C.L.).
© 1998 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.2289
DOI:
10.1103/PhysRevLett.80.2289
*Permanent address: Yonsei University, Seoul 120-749, Korea. †Permanent address: Brookhaven National Laboratory, Upton, NY 11973. ‡Permanent address: University of Texas, Austin, TX 78712. §Permanent address: Lawrence Livermore National Laboratory, Livermore, CA 94551. **Permanent address: BINP, RU-630090 Novosibirsk, Russia.
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