Measurement of the branching fraction, polarization, and asymmetry for decays, and determination of the Cabibbo-Kobayashi-Maskawa phase

A Somov; A J Schwartz; K Abe; K Abe; I Adachi; H Aihara; D Anipko; K Arinstein; Y Asano; V Aulchenko; T Aushev; T Aziz; S Bahinipati; A M Bakich; V Balagura; A Bay; I Bedny; K Belous; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bracko; J Brodzicka; T E Browder; M-C Chang; P Chang; Y Chao; A Chen; W T Chen; B G Cheon; R Chistov; S-K Choi; Y Choi; Y K Choi; A Chuvikov; S Cole; J Dalseno; M Dash; J Dragic; A Drutskoy; S Eidelman; D Epifanov; N Gabyshev; A Garmash; T Gershon; A Go; G Gokhroo; B Golob; K Hara; T Hara; N C Hastings; K Hayasaka; H Hayashii; M Hazumi; Y Hoshi; S Hou; W-S Hou; Y B Hsiung; T Iijima; K Ikado; K Inami; A Ishikawa; H Ishino; R Itoh; M Iwasaki; Y Iwasaki; J H Kang; P Kapusta; N Katayama; H Kawai; T Kawasaki; H Kichimi; H J Kim; S K Kim; S M Kim; K Kinoshita; S Korpar; P Krizan; P Krokovny; C C Kuo; A Kusaka; A Kuzmin; Y-J Kwon; G Leder; T Lesiak; J Li; A Limosani; S-W Lin; J Macnaughton; F Mandl; D Marlow; T Matsumoto; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; Y Miyazaki; R Mizuk; D Mohapatra; Y Nagasaka; M Nakao; Z Natkaniec; S Nishida; O Nitoh; S Noguchi; S Ogawa; T Ohshima; T Okabe; S Okuno; S L Olsen; W Ostrowicz; H Ozaki; H Palka; C W Park; H Park; R Pestotnik; L E Piilonen; A Poluektov; Y Sakai; T R Sarangi; N Sato; T Schietinger; O Schneider; C Schwanda; R Seidl; K Senyo; M E Sevior; M Shapkin; H Shibuya; B Shwartz; V Sidorov; A Sokolov; N Soni; S Stanic; M Staric; T Sumiyoshi; S Suzuki; O Tajima; F Takasaki; K Tamai; N Tamura; M Tanaka; G N Taylor; Y Teramoto; X C Tian; K Trabelsi; T Tsuboyama; T Tsukamoto; S Uehara; T Uglov; K Ueno; Y Unno; S Uno; P Urquijo; Y Ushiroda; Y Usov; G Varner; S Villa; C H Wang; M-Z Wang; Y Watanabe; E Won; Q L Xie; B D Yabsley; A Yamaguchi; M Yamauchi; J Ying; L M Zhang; Z P Zhang; V Zhilich; Belle Collaboration

doi:10.1103/PhysRevLett.96.171801

Measurement of the branching fraction, polarization, and asymmetry for decays, and determination of the Cabibbo-Kobayashi-Maskawa phase

Phys Rev Lett. 2006 May 5;96(17):171801. doi: 10.1103/PhysRevLett.96.171801. Epub 2006 May 2.

Authors

A Somov¹, A J Schwartz, K Abe, K Abe, I Adachi, H Aihara, D Anipko, K Arinstein, Y Asano, V Aulchenko, T Aushev, T Aziz, S Bahinipati, A M Bakich, V Balagura, A Bay, I Bedny, K Belous, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bracko, J Brodzicka, T E Browder, M-C Chang, P Chang, Y Chao, A Chen, W T Chen, B G Cheon, R Chistov, S-K Choi, Y Choi, Y K Choi, A Chuvikov, S Cole, J Dalseno, M Dash, J Dragic, A Drutskoy, S Eidelman, D Epifanov, N Gabyshev, A Garmash, T Gershon, A Go, G Gokhroo, B Golob, K Hara, T Hara, N C Hastings, K Hayasaka, H Hayashii, M Hazumi, Y Hoshi, S Hou, W-S Hou, Y B Hsiung, T Iijima, K Ikado, K Inami, A Ishikawa, H Ishino, R Itoh, M Iwasaki, Y Iwasaki, J H Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, H Kichimi, H J Kim, S K Kim, S M Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, C C Kuo, A Kusaka, A Kuzmin, Y-J Kwon, G Leder, T Lesiak, J Li, A Limosani, S-W Lin, J Macnaughton, F Mandl, D Marlow, T Matsumoto, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, Y Miyazaki, R Mizuk, D Mohapatra, Y Nagasaka, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, S Ogawa, T Ohshima, T Okabe, S Okuno, S L Olsen, W Ostrowicz, H Ozaki, H Palka, C W Park, H Park, R Pestotnik, L E Piilonen, A Poluektov, Y Sakai, T R Sarangi, N Sato, T Schietinger, O Schneider, C Schwanda, R Seidl, K Senyo, M E Sevior, M Shapkin, H Shibuya, B Shwartz, V Sidorov, A Sokolov, N Soni, S Stanic, M Staric, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, N Tamura, M Tanaka, G N Taylor, Y Teramoto, X C Tian, K Trabelsi, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, P Urquijo, Y Ushiroda, Y Usov, G Varner, S Villa, C H Wang, M-Z Wang, Y Watanabe, E Won, Q L Xie, B D Yabsley, A Yamaguchi, M Yamauchi, J Ying, L M Zhang, Z P Zhang, V Zhilich; Belle Collaboration

Affiliation

¹ University of Cincinnati, Ohio 45221, USA.

PMID: 16712287
DOI: 10.1103/PhysRevLett.96.171801

Abstract

We have measured the branching fraction , longitudinal polarization fraction f(L), and CP asymmetry coefficients A and S for B(0) --> rho(+) rho(-) decays with the Belle detector at the KEKB e(+) e(-) collider using 253 Fb(-1) of data. We obtain B = [22.8 +/- 3.8(stat)(+2.3)(-2.6)(syst)] x 10(-6), f(L) = 0.941 (+0.034)(-0.040)(stat) +/- 0.030(syst). A = 0.00 +/- 0.30(stat) +/- 0.09(syst) and S = 0.08 +/- 0.09(syst). These values are used to constrain the Cabibbo-Kobayashi-Maskawa phase ; the solution consistent with the standard model is phi(2) = (88 +/- 17) degrees or 59 degrees < phi(2) < 115 degrees at 90% C.L.