Phys. Rev. Lett.
76,
3065–3069
(1996)
Limits on Flavor Changing Neutral Currents in D0 Meson Decays
A. Freyberger et al. (CLEO Collaboration)
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A. Freyberger1, D. Gibaut1, K. Kinoshita1, P. Pomianowski1, S. Schrenk1, D. Cinabro2, B. Barish3, M. Chadha3, S. Chan3, G. Eigen3, J. S. Miller3, C. O'Grady3, M. Schmidtler3, J. Urheim3, A. J. Weinstein3, F. Würthwein3, D. M. Asner4, M. Athanas4, D. W. Bliss4, W. S. Brower4, G. Masek4, H. P. Paar4, J. Gronberg5, C. M. Korte5, R. Kutschke5, S. Menary5, R. J. Morrison5, S. Nakanishi5, H. N. Nelson5, T. K. Nelson5, C. Qiao5, J. D. Richman5, D. Roberts5, A. Ryd5, H. Tajima5, M. S. Witherell5, R. Balest6, K. Cho6, W. T. Ford6, M. Lohner6, H. Park6, P. Rankin6, J. Roy6, J. G. Smith6, J. P. Alexander7, C. Bebek7, B. E. Berger7, K. Berkelman7, K. Bloom7, D. G. Cassel7, H. A. Cho7, D. M. Coffman7, D. S. Crowcroft7, M. Dickson7, P. S. Drell7, D. J. Dumas7, R. Ehrlich7, R. Elia7, P. Gaidarev7, B. Gittelman7, S. W. Gray7, D. L. Hartill7, B. K. Heltsley7, C. D. Jones7, S. L. Jones7, J. Kandaswamy7, N. Katayama7, P. C. Kim7, D. L. Kreinick7, T. Lee7, Y. Liu7, G. S. Ludwig7, J. Masui7, J. Mevissen7, N. B. Mistry7, C. R. Ng7, E. Nordberg7, J. R. Patterson7, D. Peterson7, D. Riley7, A. Soffer7, C. Ward7, P. Avery8, C. Prescott8, S. Yang8, J. Yelton8, G. Brandenburg9, R. A. Briere9, T. Liu9, M. Saulnier9, R. Wilson9, H. Yamamoto9, T. E. Browder10, F. Li10, J. L. Rodriguez10, T. Bergfeld11, B. I. Eisenstein11, J. Ernst11, G. E. Gladding11, G. D. Gollin11, M. Palmer11, M. Selen11, J. J. Thaler11, K. W. Edwards12,12b, K. W. McLean12,12b, M. Ogg12,12b, A. Bellerive13,13b, D. I. Britton13,13b, R. Janicek13,13b, D. B. MacFarlane13,13b, P. M. Patel13,13b, B. Spaan13,13b, A. J. Sadoff14, R. Ammar15, P. Baringer15, A. Bean15, D. Besson15, D. Coppage15, N. Copty15, R. Davis15, N. Hancock15, S. Kotov15, I. Kravchenko15, N. Kwak15, S. Anderson16, Y. Kubota16, M. Lattery16, J. K. Nelson16, S. Patton16, R. Poling16, T. Riehle16, V. Savinov16, M. S. Alam17, I. J. Kim17, Z. Ling17, A. H. Mahmood17, J. J. O'Neill17, H. Severini17, C. R. Sun17, S. Timm17, F. Wappler17, J. E. Duboscq18, R. Fulton18, D. Fujino18, K. K. Gan18, K. Honscheid18, H. Kagan18, R. Kass18, J. Lee18, M. Sung18, A. Undrus18, C. White18, R. Wanke18, A. Wolf18, M. M. Zoeller18, X. Fu19, B. Nemati19, S. J. Richichi19, W. R. Ross19, P. Skubic19, M. Wood19, M. Bishai20, J. Fast20, E. Gerndt20, J. W. Hinson20, T. Miao20, D. H. Miller20, M. Modesitt20, E. I. Shibata20, I. P. J. Shipsey20, P. N. Wang20, M. Yurko20, L. Gibbons21, S. D. Johnson21, Y. Kwon21, S. Roberts21, E. H. Thorndike21, C. P. Jessop22, K. Lingel22, H. Marsiske22, M. L. Perl22, S. F. Schaffner22, R. Wang22, T. E. Coan23, J. Dominick23, V. Fadeyev23, I. Korolkov23, M. Lambrecht23, S. Sanghera23, V. Shelkov23, R. Stroynowski23, I. Volobouev23, G. Wei23, M. Artuso24, A. Efimov24, M. Gao24, M. Goldberg24, R. Greene24, D. He24, N. Horwitz24, S. Kopp24, G. C. Moneti24, R. Mountain24, Y. Mukhin24, S. Playfer24, T. Skwarnicki24, S. Stone24, X. Xing24, J. Bartelt25, S. E. Csorna25, V. Jain25, and S. Marka25 (CLEO Collaboration)
1Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
2Wayne State University, Detroit, Michigan 48202
3California Institute of Technology, Pasadena, California 91125
4University of California, San Diego, La Jolla, California 92093
5University of California, Santa Barbara, California 93106
6University of Colorado, Boulder, Colorado 80309-0390
7Cornell University, Ithaca, New York 14853
8University of Florida, Gainesville, Florida 32611
9Harvard University, Cambridge, Massachusetts 02138
10University of Hawaii at Manoa, Honolulu, Hawaii 96822
11University of Illinois, Champaign-Urbana, Illinois 61801
12Carleton University, Ottawa, Ontario, Canada K1S 5B6
12band the Institute of Particle Physics, Montréal, Québec, Canada
13McGill University, Montréal, Québec, Canada H3A 2T8
13band the Institute of Particle Physics, Montréal, Québec, Canada
14Ithaca College, Ithaca, New York 14850
15University of Kansas, Lawrence, Kansas 66045
16University of Minnesota, Minneapolis, Minnesota 55455
17State University of New York at Albany, Albany, New York 12222
18The Ohio State University, Columbus, Ohio 43210
19University of Oklahoma, Norman, Oklahoma 73019
20Purdue University, West Lafayette, Indiana 47907
21University of Rochester, Rochester, New York 14627
22Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309
23Southern Methodist University, Dallas, Texas 75275
24Syracuse University, Syracuse, New York 13244
25Vanderbilt University, Nashville, Tennessee 37235
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Erratum
Received 10 January 1996; published in the issue dated 22 April 1996
Using the CLEO II detector at the Cornell Electron Storage Ring, we have searched for flavor changing neutral currents and lepton family number violations in D0 meson decays. The upper limits on the branching fractions for D0→ℓ+ℓ- and D0→X0ℓ+ℓ- are in the range 10-5 to 10-4, where X0 can be a π0, Ks0, η, ρ0, ω, K̅ *0, or φ meson, and the ℓ+ℓ- pair can be e+e-, μ+μ-, or e±μ∓. Although these limits are above the theoretical predictions, most are new or an order of magnitude lower than previous limits.
© 1996 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.76.3065
DOI:
10.1103/PhysRevLett.76.3065
PACS:
13.20.Fc, 11.30.Hv, 12.60.-i, 14.40.Lb
See Also
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