Evidence for large direct CP violation in B+/- --> rho(770)0K+/- from analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decays

A Garmash; K Abe; K Abe; I Adachi; H Aihara; Y Asano; T Aushev; T Aziz; S Bahinipati; A M Bakich; M Barbero; I Bedny; U Bitenc; I Bizjak; A Bondar; A Bozek; M Bracko; J Brodzicka; T E Browder; P Chang; Y Chao; A Chen; K-F Chen; W T Chen; B G Cheon; R Chistov; Y Choi; Y K Choi; A Chuvikov; J Dalseno; M Danilov; M Dash; J Dragic; A Drutskoy; S Eidelman; D Epifanov; S Fratina; N Gabyshev; T Gershon; A Go; G Gokhroo; B Golob; A Gorisek; H C Ha; T Hara; Y Hasegawa; N C Hastings; K Hayasaka; H Hayashii; M Hazumi; T Hokuue; Y Hoshi; S Hou; W-S Hou; Y B Hsiung; T Iijima; A Imoto; K Inami; A Ishikawa; R Itoh; M Iwasaki; Y Iwasaki; P Kapusta; N Katayama; H Kawai; T Kawasaki; H R Khan; H Kichimi; S K Kim; S M Kim; K Kinoshita; S Korpar; P Krizan; P Krokovny; R Kulasiri; C C Kuo; A Kuzmin; Y-J Kwon; S E Lee; T Lesiak; A Limosani; S-W Lin; D Liventsev; F Mandl; D Marlow; T Matsumoto; A Matyja; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; Y Miyazaki; T Nagamine; E Nakano; M Nakao; Z Natkaniec; S Nishida; O Nitoh; S Noguchi; T Ohshima; T Okabe; S Okuno; S L Olsen; H Ozaki; C W Park; H Park; K S Park; L S Peak; R Pestotnik; L E Piilonen; M Rozanska; Y Sakai; N Satoyama; T Schietinger; O Schneider; J Schümann; C Schwanda; A J Schwartz; R Seidl; M E Sevior; H Shibuya; B Shwartz; J B Singh; A Somov; R Stamen; S Stanic; M Staric; T Sumiyoshi; S Suzuki; S Y Suzuki; 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; S Uno; P Urquijo; G Varner; K E Varvell; S Villa; C H Wang; M-Z Wang; Y Watanabe; E Won; Q L Xie; A Yamaguchi; M Yamauchi; Heyoung Yang; L M Zhang; Z P Zhang; V Zhilich; D Zürcher; Belle Collaboration

doi:10.1103/PhysRevLett.96.251803

Evidence for large direct CP violation in B+/- --> rho(770)0K+/- from analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decays

Phys Rev Lett. 2006 Jun 30;96(25):251803. doi: 10.1103/PhysRevLett.96.251803. Epub 2006 Jun 29.

Authors

A Garmash¹, K Abe, K Abe, I Adachi, H Aihara, Y Asano, T Aushev, T Aziz, S Bahinipati, A M Bakich, M Barbero, I Bedny, U Bitenc, I Bizjak, A Bondar, A Bozek, M Bracko, J Brodzicka, T E Browder, P Chang, Y Chao, A Chen, K-F Chen, W T Chen, B G Cheon, R Chistov, Y Choi, Y K Choi, A Chuvikov, J Dalseno, M Danilov, M Dash, J Dragic, A Drutskoy, S Eidelman, D Epifanov, S Fratina, N Gabyshev, T Gershon, A Go, G Gokhroo, B Golob, A Gorisek, H C Ha, T Hara, Y Hasegawa, N C Hastings, K Hayasaka, H Hayashii, M Hazumi, T Hokuue, Y Hoshi, S Hou, W-S Hou, Y B Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, R Itoh, M Iwasaki, Y Iwasaki, P Kapusta, N Katayama, H Kawai, T Kawasaki, H R Khan, H Kichimi, S K Kim, S M Kim, K Kinoshita, S Korpar, P Krizan, P Krokovny, R Kulasiri, C C Kuo, A Kuzmin, Y-J Kwon, S E Lee, T Lesiak, A Limosani, S-W Lin, D Liventsev, F Mandl, D Marlow, T Matsumoto, A Matyja, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, Y Miyazaki, T Nagamine, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Noguchi, T Ohshima, T Okabe, S Okuno, S L Olsen, H Ozaki, C W Park, H Park, K S Park, L S Peak, R Pestotnik, L E Piilonen, M Rozanska, Y Sakai, N Satoyama, T Schietinger, O Schneider, J Schümann, C Schwanda, A J Schwartz, R Seidl, M E Sevior, H Shibuya, B Shwartz, J B Singh, A Somov, R Stamen, S Stanic, M Staric, T Sumiyoshi, S Suzuki, S Y Suzuki, 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, S Uno, P Urquijo, G Varner, K E Varvell, S Villa, C H Wang, M-Z Wang, Y Watanabe, E Won, Q L Xie, A Yamaguchi, M Yamauchi, Heyoung Yang, L M Zhang, Z P Zhang, V Zhilich, D Zürcher; Belle Collaboration

Affiliation

¹ Princeton University, Princeton, New Jersey 08544, USA.

PMID: 16907296
DOI: 10.1103/PhysRevLett.96.251803

Abstract

We report results on a Dalitz analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decay including searches for direct CP violation. We report the first observation of the decay B+/- --> f2(1270)K+/- with a statistical significance above 6sigma. We also observe first evidence for large direct CP violation in the B+/- --> rho(770)0K+/- channel. The results are obtained with a data sample that contains 386 10(6) BB pairs collected at the Y(4s) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.