Evidence for the decay D0 → Κ+π-π+π-

S. A. Dytman, V. Savinov, S. Chen, J. W. Hinson, J. Lee, D. H. Miller, E. I. Shibata, I. P J Shipsey, V. Pavlunin, D. Cronin-Hennessy, A. L. Lyon, W. Park, E. H. Thorndike, T. E. Coan, Y. S. Gao, F. Liu, Y. Maravin, I. Narsky, R. Stroynowski, J. YeM. Artuso, C. Boulahouache, K. Bukin, E. Dambasuren, G. Majumder, R. Mountain, T. Skwarnicki, S. Stone, J. C. Wang, H. Zhao, S. Kopp, M. Kostin, A. H. Mahmood, S. E. Csorna, I. Danko, K. W. McLean, Z. Xu, G. Bonvicini, D. Cinabro, M. Dubrovin, S. McGee, A. Bornheim, E. Lipeles, S. P. Pappas, A. Shapiro, W. M. Sun, A. J. Weinstein, R. Mahapatra, G. Masek, H. P. Paar, R. J. Morrison, H. N. Nelson, R. A. Briere, G. P. Chen, T. Ferguson, H. Vogel, J. P. Alexander, C. Bebek, K. Berkelman, F. Blanc, V. Boisvert, D. G. Cassel, P. S. Drell, J. E. Duboscq, K. M. Ecklund, R. Ehrlich, L. Gibbons, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, L. Hsu, C. D. Jones, J. Kandaswamy, D. L. Kreinick, M. Lohner, A. Magerkurth, H. Mahlke-Krüger, T. O. Meyer, N. B. Mistry, E. Nordberg, M. Palmer, J. R. Patterson, D. Peterson, J. Pivarski, D. Riley, H. Schwarthoff, J. G. Thayer, D. Urner, B. Valant-Spaight, G. Viehhauser, A. Warburton, M. Weinberger, S. B. Athar, P. Avery, C. Prescott, H. Stoeck, J. Yelton, G. Brandenburg, A. Ershov, D. Y J Kim, R. Wilson, K. Benslama, B. I. Eisenstein, J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, I. Karliner, N. Lowrey, M. A. Marsh, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, K. W. Edwards, A. J. Sadoff, R. Ammar, A. Bean, D. Besson, X. Zhao, S. Anderson, V. V. Frolov, Y. Kubota, S. J. Lee, R. Poling, A. Smith, C. J. Stepaniak, J. Urheim, S. Ahmed, M. S. Alam, L. Jian, L. Ling, M. Saleem, S. Timm, F. Wappler, A. Anastassov, E. Eckhart, K. K. Gan, C. Gwon, T. Hart, K. Honscheid, D. Hufnagel, H. Kagan, R. Kass, T. K. Pedlar, J. B. Thayer, E. Von Toerne, M. M. Zoeller, S. J. Richichi, H. Severini, P. Skubic

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Abstract

We present a search for the "wrong-sign" decay D0 → Κ+π-π+π- using 9 fb-1 of e+e- collisions on and just below the Y(4S) resonance. This decay can occur either through a doubly Cabibbo-suppressed process or through mixing to a D̄0 followed by a Cabibbo-favored process. Our result for the time-integrated wrong-sign rate relative to the decay D0 → Κ-π+π-π+ is (0.0041-0.0011 +0.0012(stat)±0.0004(syst))×(1.07 ±0.10)(phase space), which has a statistical significance of 3.9 standard deviations.

Original languageEnglish (US)
Article number111101
JournalPhysical Review D
Volume64
Issue number11
StatePublished - Dec 1 2001

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    Dytman, S. A., Savinov, V., Chen, S., Hinson, J. W., Lee, J., Miller, D. H., Shibata, E. I., Shipsey, I. P. J., Pavlunin, V., Cronin-Hennessy, D., Lyon, A. L., Park, W., Thorndike, E. H., Coan, T. E., Gao, Y. S., Liu, F., Maravin, Y., Narsky, I., Stroynowski, R., ... Skubic, P. (2001). Evidence for the decay D0 → Κ+π-π+π-. Physical Review D, 64(11), [111101].