Improved measurement ofB¯0→Ds−D and search forB¯0→Ds Ds−at Belle

A Zupanc; K Abe; K Abe; H Aihara; D Anipko; K Arinstein; V Aulchenko; T Aushev; S Bahinipati; AM Bakich; E Barberio; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bračko; TE Browder; M-C Chang; P Chang; Y Chao; K-F Chen; WT Chen; BG Cheon; R Chistov; S-K Choi; Y Choi; YK Choi; J Dalseno; M Dash; A Drutskoy; S Eidelman; S Fratina; N Gabyshev; A Go; B Golob; H Ha; J Haba; T Hara; H Hayashii; M Hazumi; D Heffernan; T Hokuue; Y Hoshi; W-S Hou; YB Hsiung; T Iijima; K Ikado; K Inami; A Ishikawa; H Ishino; R Itoh; Y Iwasaki; H Kaji; P Kapusta; H Kawai; T Kawasaki; H Kichimi; HJ Kim; YJ Kim; K Kinoshita; S Korpar; P Križan; P Krokovny; R Kulasiri; R Kumar; Y-J Kwon; MJ Lee; T Lesiak; A Limosani; S-W Lin; D Liventsev; G Majumder; F Mandl; T Matsumoto; S McOnie; T Medvedeva; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; Y Miyazaki; R Mizuk; GR Moloney; E Nakano; M Nakao; H Nakazawa; Z Natkaniec; S Nishida; O Nitoh; S Ogawa; T Ohshima; S Okuno; Y Onuki; H Ozaki; P Pakhlov; G Pakhlova; CW Park; R Pestotnik; LE Piilonen; Y Sakai; N Satoyama; T Schietinger; O Schneider; C Schwanda; R Seidl; K Senyo; ME Sevior; M Shapkin; H Shibuya; B Shwartz; JB Singh; A Somov; N Soni; S Stanič; M Starič; H Stoeck; K Sumisawa; T Sumiyoshi; S Suzuki; F Takasaki; K Tamai; M Tanaka; GN Taylor; Y Teramoto; XC Tian; I Tikhomirov; K Trabelsi; T Tsukamoto; S Uehara; K Ueno; S Uno; Y Ushiroda; Y Usov; G Varner; S Villa; CH Wang; Y Watanabe; E Won; QL Xie; A Yamaguchi; Y Yamashita; M Yamauchi; Y Yusa; CC Zhang; ZP Zhang; V Zhilich; V Zhulanov

Journal article

Improved measurement ofB¯0→Ds−D and search forB¯0→Ds Ds−at Belle

A Zupanc, K Abe, K Abe, H Aihara, D Anipko, K Arinstein, V Aulchenko, T Aushev, S Bahinipati, AM Bakich, E Barberio, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bračko, TE Browder, M-C Chang, P Chang Show all

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

DOI: 10.1103/physrevd.75.091102

Abstract

We reconstruct B¯0→Ds-D+ decays using a sample of 449×106 BB¯ pairs recorded by the Belle experiment, and measure the branching fraction to be B(B¯0→Ds-D+)=[7.5±0.2(stat)±0.8(syst)±0.8(B′s)]×10-3. A search for the related decay B¯0→Ds+Ds- is also performed. Since we observe no statistically significant signal, an upper limit on the branching fraction is set at 3.6×10-5 (90% C.L.).