Measurements of time-dependent CP violation in B-0 -> (2S)K-S(0) decays

H Sahoo; TE Browder; K Trabelsi; I Adachi; H Aihara; K Arinstein; T Aushev; S Bahinipati; AM Bakich; V Balagura; E Barberio; A Bay; I Bedny; K Belous; U Bitenc; A Bondar; A Bozek; M Bracko; M-C Chang; Y Chao; A Chen; WT Chen; BG Cheon; R Chistov; I-S Cho; Y Choi; J Dalseno; M Dash; A Drutskoy; S Eidelman; B Golob; H Ha; J Haba; K Hara; T Hara; K Hayasaka; H Hayashii; M Hazumi; D Heffernan; Y Hoshi; W-S Hou; YB Hsiung; HJ Hyun; K Inami; A Ishikawa; H Ishino; R Itoh; M Iwasaki; NJ Joshi; DH Kah; JH Kang; P Kapusta; N Katayama; H Kichimi; HJ Kim; YJ Kim; K Kinoshita; S Korpar; Y Kozakai; P Krizan; P Krokovny; R Kumar; CC Kuo; Y Kuroki; Y-J Kwon; JS Lee; MJ Lee; SE Lee; T Lesiak; J Li; A Limosani; D Liventsev; F Mandl; A Matyja; S McOnie; T Medvedeva; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; Y Miyazaki; R Mizuk; GR Moloney; E Nakano; M Nakao; Z Natkaniec; S Nishida; O Nitoh; S Noguchi; S Ogawa; T Ohshima; S Okuno; SL Olsen; P Pakhlov; G Pakhlova; H Palka; CW Park; H Park; LS Peak; R Pestotnik; LE Piilonen; Y Sakai; O Schneider; C Schwanda; AJ Schwartz; K Senyo; ME Sevior; M Shapkin; CP Shen; H Shibuya; J-G Shiu; B Shwartz; A Somov; S Stanic; M Staric; K Sumisawa; T Sumiyoshi; F Takasaki; M Tanaka; GN Taylor; Y Teramoto; I Tikhomirov; S Uehara; K Ueno; Y Unno; S Uno; P Urquijo; Y Usov; G Varner; KE Varvell; K Vervink; S Villa; CH Wang; P Wang; XL Wang; Y Watanabe; R Wedd; E Won; H Yamamoto; Y Yamashita; CC Zhang; ZP Zhang; V Zhulanov; A Zupanc

Journal article

Measurements of time-dependent CP violation in B-0 -> (2S)K-S(0) decays

H Sahoo, TE Browder, K Trabelsi, I Adachi, H Aihara, K Arinstein, T Aushev, S Bahinipati, AM Bakich, V Balagura, E Barberio, A Bay, I Bedny, K Belous, U Bitenc, A Bondar, A Bozek, M Bracko, M-C Chang, Y Chao Show all

PHYSICAL REVIEW D | AMER PHYSICAL SOC | Published : 2008

DOI: 10.1103/PhysRevD.77.091103

Abstract

We report improved measurements of time-dependent CP violation parameters for B0(B̄0)→ψ(2S)KS0. This analysis is based on a data sample of 657×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. We fully reconstruct one neutral B meson in the ψ(2S)KS0 CP-eigenstate decay channel, and the flavor of the accompanying B meson is identified to be either B0 or B̄0 from its decay products. CP violation parameters are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays: Sψ(2S)KS0=+0.72±0.09(stat)±0.03(syst), Aψ(2S)KS0=+0.04±0.07(stat)±0.05(syst). These results are in agreement with re..

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