Amplitude analysis of D0->K+K-pi+pi-

M. Artuso , S. Blusk , R. Mountain , T. Skwarnicki , S. Stone , L. M. Zhang , T. Gershon , G. Bonvicini

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D. Cinabro A. Lincoln M. J. Smith P. Zhou J. Zhu P. Naik J. Rademacker D. M. Asner K. W. Edwards K. Randrianarivony G. Tatishvili R. A. Briere H. Vogel P. U. E. Onyisi J. L. Rosner J. P. Alexander D. G. Cassel S. Das R. Ehrlich L. Gibbons S. W. Gray D. L. Hartill B. K. Heltsley D. L. Kreinick V. E. Kuznetsov J. R. Patterson D. Peterson D. Riley A. Ryd A. J. Sadoff X. Shi W. M. Sun J. Yelton P. Rubin N. Lowrey S. Mehrabyan M. Selen J. Wiss J. Libby M. Kornicer R. E. Mitchell D. Besson T. K. Pedlar D. Cronin-Hennessy J. Hietala S. Dobbs Z. Metreveli K. K. Seth A. Tomaradze T. Xiao L. Martin A. Powell P. Spradlin G. Wilkinson J. Y. Ge D. H. Miller I. P. J. Shipsey B. Xin G. S. Adams J. Napolitano K. M. Ecklund J. Insler H. Muramatsu C. S. Park L. J. Pearson E. H. Thorndike S. Ricciardi C. Thomas (CLEO Collaboration)

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classification ✦ hep-ex

keywords k-piamplitudeamplitudesanalysiscleod0-bard0-tildedata

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The first flavor-tagged amplitude analysis of the decay D0 to the self-conjugate final state K+K-pi+pi- is presented. Data from the CLEO II.V, CLEO III, and CLEO-c detectors are used, from which around 3000 signal decays are selected. The three most significant amplitudes, which contribute to the model that best fits the data, are phirho0, K1(1270)+-K-+, and non-resonant K+K-pi+pi-. Separate amplitude analyses of D0 and D0-bar candidates indicate no CP violation among the amplitudes at the level of 5% to 30% depending on the mode. In addition, the sensitivity to the CP-violating parameter gamma/phi3 of a sample of 2000 B+ -> D0-tilde(K+K-pi+pi-)K+ decays, where D0-tilde is a D0 or D0-bar, collected at LHCb or a future flavor facility, is estimated to be (11.3 +/- 0.3) degrees using the favored model.

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Amplitude analysis of D0->K+K-pi+pi-

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