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

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

Physical review letters

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,

Affiliations

  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.

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