Phys. Rev. Lett. 65, 1184 - 1187 (1990)
Study of the decays D0→KK¯, ππ¯
J. Alexander et al.
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J. Alexander, M. Artuso, C. Bebek, K. Berkelman, T. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Drell, R. Ehrlich, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, N. B. Mistry, S. Nandi, E. Nordberg, C. O’Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, Y. Zhu, R. Ammar, P. Baringer, D. Coppage, P. Haas, M. Kelly, N. Kwak, Ha Lam, S. Ro, A. Jawahery, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson, D. Bortoletto, W.-Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, W.-M. Yao, K. Sparks, E. H. Thorndike, C.-H. Wang, M. S. Alam, I. J. Kim, W. C. Li, V. Romero, C. R. Sun, P.-N. Wang, M. M. Zoeller, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, V. Sharma, T. Skwarnicki, M. Thulasidas, G. Zhu, S. E. Csorna, and T. Letson Cornell University, Ithaca, New York 14853
Ithaca College, Ithaca, New York, 14850
University of Florida, Gainesville, Florida 32611
Harvard University, Cambridge, Massachusetts 02138
University of Kansas, Lawrence, Kansas 66045
University of Maryland, College Park, Maryland 20742
University of Minnesota, Minneapolis, Minnesota 55455
Ohio State University, Columbus, Ohio 43210
Purdue University, West Lafayette, Indiana 47907
University of Rochester, Rochester, New York 14627
State University of New York at Albany, Albany, New York 12222
Syracuse University, Syracuse, New York 13244
Vanderbilt University, Nashville, Tennessee 37235
Received 13 June 1990
Using the CLEO detector we have observed the Cabibbo-suppressed decays D0→K0K¯0, K+K-, and π+π-. We determine B(D0→K0K¯0)= (0.13-0.05-0.02+0.07+0.02)%. Our measurement B(D0→K+K-)/B(D0→π+π-)=2.35±0.37±0.28 represents asubstantial improvement over previous results. We find no evidence for the decay D0→π0π0, and place a 90%-confidence-level upper limit of B(D0→π0π0)<0.46%.
©1990 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevLett.65.1184
DOI: 10.1103/PhysRevLett.65.1184
PACS: 13.25.+m, 14.40.Jz
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