Measurement ofD0−D¯0Mixing Parameters inD0→Ksπ π−Decays

LM Zhang; ZP Zhang; I Adachi; H Aihara; V Aulchenko; T Aushev; AM Bakich; V Balagura; E Barberio; A Bay; K Belous; U Bitenc; A Bondar; A Bozek; M Bračko; J Brodzicka; TE Browder; P Chang; Y Chao; A Chen; K-F Chen; WT Chen; BG Cheon; C-C Chiang; I-S Cho; Y Choi; YK Choi; J Dalseno; M Danilov; M Dash; A Drutskoy; S Eidelman; D Epifanov; S Fratina; N Gabyshev; G Gokhroo; B Golob; H Ha; J Haba; T Hara; NC Hastings; K Hayasaka; H Hayashii; M Hazumi; D Heffernan; T Hokuue; Y Hoshi; W-S Hou; YB Hsiung; HJ Hyun; T Iijima; K Ikado; K Inami; A Ishikawa; H Ishino; R Itoh; M Iwasaki; Y Iwasaki; NJ Joshi; DH Kah; H Kaji; S Kajiwara; JH Kang; H Kawai; T Kawasaki; H Kichimi; HJ Kim; HO Kim; SK Kim; YJ Kim; K Kinoshita; S Korpar; P Križan; P Krokovny; R Kumar; CC Kuo; A Kuzmin; Y-J Kwon; JS Lee; MJ Lee; SE Lee; T Lesiak; J Li; A Limosani; S-W Lin; Y Liu; D Liventsev; T Matsumoto; A Matyja; S McOnie; T Medvedeva; W Mitaroff; H Miyake; H Miyata; Y Miyazaki; R Mizuk; Y Nagasaka; I Nakamura; E Nakano; M Nakao; Z Natkaniec; S Nishida; O Nitoh; S Ogawa; T Ohshima; S Okuno; SL Olsen; Y Onuki; W Ostrowicz; H Ozaki; P Pakhlov; G Pakhlova; CW Park; H Park; LS Peak; R Pestotnik; LE Piilonen; A Poluektov; H Sahoo; Y Sakai; O Schneider; J Schümann; C Schwanda; AJ Schwartz; R Seidl; K Senyo; ME Sevior; M Shapkin; H Shibuya; S Shinomiya; J-G Shiu; B Shwartz; JB Singh; A Sokolov; A Somov; N Soni; S Stanič; M Starič; H Stoeck; K Sumisawa; T Sumiyoshi; S Suzuki; O Tajima; F Takasaki; K Tamai; N Tamura; M Tanaka; GN Taylor; Y Teramoto; XC Tian; I Tikhomirov; T Tsuboyama; S Uehara; K Ueno; T Uglov; Y Unno; S Uno; P Urquijo; Y Usov; G Varner; K Vervink; S Villa; A Vinokurova; CH Wang; M-Z Wang; P Wang; Y Watanabe; E Won; BD Yabsley; A Yamaguchi; Y Yamashita; M Yamauchi; CZ Yuan; CC Zhang; V Zhilich; A Zupanc

Journal article

Measurement ofD0−D¯0Mixing Parameters inD0→Ksπ π−Decays

LM Zhang, ZP Zhang, I Adachi, H Aihara, V Aulchenko, T Aushev, AM Bakich, V Balagura, E Barberio, A Bay, K Belous, U Bitenc, A Bondar, A Bozek, M Bračko, J Brodzicka, TE Browder, P Chang, Y Chao, A Chen Show all

Physical Review Letters | American Physical Society (APS) | Published : 2007

DOI: 10.1103/physrevlett.99.131803

Abstract

We report a measurement of D0-D(0) mixing parameters in D(0) --> K(s)(0) pi(+) pi(-) decays using a time-dependent Dalitz-plot analysis. We first assume CP conservation and subsequently allow for CP violation. The results are based on 540 fb(-1) of data accumulated with the Belle detector at the KEKB e(+)e(-) collider. Assuming negligible CP violation, we measure the mixing parameters x = (0.80 +/- 0.29(-0.07-0.14)(+0.09+0.10))% and y = (0.33+/-0.24(-0.12-0.08)(+0.08+0.06))%, where the errors are statistical, experimental systematic, and systematic due to the Dalitz decay model, respectively. Allowing for CP violation, we obtain the CP-violating parameters |q / p| = 0.86(-0.29-0.03)(+0.30+0...

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