Measurement ofϕ3with a Dalitz plot analysis ofB+→D(*)K(*)+decay

• DOI: 10.1103/physrevd.73.112009
• Publication Date: 2006-06-30T10:13:35Z
• Authors: A. Poluektov; K. Abe; K. Abe; I. Adachi; H. Aihara; D. Anipko; K. Arinstein; T. Aushev; S. Bahinipati; A. M. Bakich; V. Balagura; E. Barberio; M. Barbero; I. Bedny; K. Belous; U. Bitenc; I. Bizjak; S. Blyth; A. Bondar; A. Bozek; M. Bračko; T. E. Browder; P. Chang; Y. Chao; A. Chen; W. T. Chen; B. G. Cheon; R. Chistov; Y. Choi; A. Chuvikov; J. Dalseno; M. Danilov; M. Dash; A. Drutskoy; S. Eidelman; D. Epifanov; S. Fratina; N. Gabyshev; A. Garmash; T. Gershon; G. Gokhroo; B. Golob; A. Gorišek; J. Haba; T. Hara; K. Hayasaka; H. Hayashii; M. Hazumi; T. Hokuue; Y. Hoshi; W.-S. Hou; T. Iijima; K. Ikado; K. Inami; A. Ishikawa; H. Ishino; R. Itoh; Y. Iwasaki; H. Kawai; T. Kawasaki; H. R. Khan; H. J. Kim; K. Kinoshita; S. Korpar; P. Križan; P. Krokovny; R. Kulasiri; R. Kumar; C. C. Kuo; A. Kuzmin; Y.-J. Kwon; J. Lee; T. Lesiak; J. Li; D. Liventsev; J. MacNaughton; G. Majumder; F. Mandl; D. Marlow; T. Matsumoto; A. Matyja; S. McOnie; W. Mitaroff; K. Miyabayashi; H. Miyake; H. Miyata; D. Mohapatra; T. Nagamine; I. Nakamura; E. Nakano; Z. Natkaniec; S. Nishida; O. Nitoh; S. Noguchi; T. Nozaki; S. Ogawa; T. Ohshima; S. Okuno; S. L. Olsen; Y. Onuki; H. Ozaki; P. Pakhlov; H. Park; L. S. Peak; R. Pestotnik; L. E. Piilonen; Y. Sakai; T. R. Sarangi; N. Sato; N. Satoyama; K. Sayeed; T. Schietinger; O. Schneider; A. J. Schwartz; R. Seidl; M. E. Sevior; M. Shapkin; H. Shibuya; B. Shwartz; J. B. Singh; A. Sokolov; A. Somov; R. Stamen; S. Stanič; M. Starič; H. Stoeck; K. Sumisawa; S. Suzuki; S. Y. Suzuki; F. Takasaki; M. Tanaka; Y. Teramoto; X. C. Tian; K. Trabelsi; T. Tsukamoto; S. Uehara; T. Uglov; K. Ueno; Y. Unno; S. Uno; P. Urquijo; Y. Ushiroda; Y. Usov; G. Varner; K. E. Varvell; S. Villa; C. H. Wang; Y. Watanabe; E. Won; Q. L. Xie; B. D. Yabsley; A. Yamaguchi; Y. Yamashita; M. Yamauchi; J. Ying; L. M. Zhang; Z. P. Zhang; V. Zhilich; D. Zürcher
• Keywords: High Energy Physics - Experiment (hep-ex); 0103 physical sciences; FOS: Physical sciences; 01 natural sciences; High Energy Physics - Experiment

We present a measurement of the unitarity triangle angle phi_3 using a Dalitz plot analysis of the K0_S pi+ pi- decay of the neutral D meson from the B+- -> D(*)K(*)+- process. The method employs the interference between D0 and D0bar to extract the angle phi_3, strong phase Delta and the ratio r of suppressed and allowed amplitudes. We apply this method to a 357 fb-1 data sample collected by the Belle experiment. The analysis uses three modes: B+ -> DK+, B+ -> D*K+ with D* -> Dpi0, and B+ -> DK*+ with K*+ -> K0_S pi+, as well as the corresponding charge-conjugate modes. From a combined maximum likelihood fit to the three modes, we obtain phi_3=53+15-18(stat)+-3(syst)+-9(model) degrees. The corresponding two standard deviation interval is 8<br/>18 pages, 6 figures, 7 tables. To be submitted to Phys. Rev. D<br/>