Measurement of the branching fraction and CP asymmetry in B+ --> rho+pi0

J Zhang; K Abe; K Abe; T Abe; H Aihara; Y Asano; V Aulchenko; T Aushev; T Aziz; S Bahinipati; A M Bakich; A Bay; I Bedny; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bracko; T E Browder; P Chang; Y Chao; K-F Chen; B G Cheon; R Chistov; S-K Choi; Y Choi; A Chuvikov; M Danilov; M Dash; L Y Dong; J Dragic; A Drutskoy; S Eidelman; V Eiges; Y Enari; S Fratina; N Gabyshev; A Garmash; T Gershon; G Gokhroo; B Golob; H Hayashii; M Hazumi; T Higuchi; L Hinz; T Hokuue; Y Hoshi; W-S Hou; Y B Hsiung; T Iijima; A Imoto; K Inami; A Ishikawa; H Ishino; R Itoh; H Iwasaki; M Iwasaki; Y Iwasaki; J H Kang; J S Kang; N Katayama; H Kawai; T Kawasaki; H R Khan; H Kichimi; H J Kim; J H Kim; T H Kim; K Kinoshita; P Koppenburg; S Korpar; P Krizan; P Krokovny; S Kumar; A Kuzmin; Y-J Kwon; G Leder; S E Lee; S H Lee; T Lesiak; J Li; A Limosani; S-W Lin; J Macnaughton; G Majumder; F Mandl; T Matsumoto; W Mitaroff; K Miyabayashi; H Miyake; H Miyata; R Mizuk; D Mohapatra; G R Moloney; T Mori; T Nagamine; Y Nagasaka; M Nakao; S Nishida; O Nitoh; T Nozaki; T Okabe; S Okuno; S L Olsen; W Ostrowicz; H Ozaki; P Pakhlov; C W Park; H Park; N Parslow; L E Piilonen; F J Ronga; M Rozanska; H Sagawa; Y Sakai; T R Sarangi; O Schneider; J Schümann; A J Schwartz; S Semenov; K Senyo; M E Sevior; H Shibuya; B Shwartz; A Somov; N Soni; R Stamen; S Stanic; M Staric; K Sumisawa; T Sumiyoshi; S Suzuki; O Tajima; F Takasaki; K Tamai; M Tanaka; G N Taylor; Y Teramoto; T Tomura; T Tsuboyama; T Tsukamoto; S Uehara; T Uglov; K Ueno; Y Unno; S Uno; G Varner; K E Varvell; S Villa; C C Wang; C H Wang; M-Z Wang; M Watanabe; Y Watanabe; B D Yabsley; Y Yamada; A Yamaguchi; Y Yamashita; M Yamauchi; Heyoung Yang; J Ying; Y Yusa; S L Zang; C C Zhang; Z P Zhang; V Zhilich; T Ziegler; D Zontar; Belle Collaboration

doi:10.1103/PhysRevLett.94.031801

Measurement of the branching fraction and CP asymmetry in B+ --> rho+pi0

Phys Rev Lett. 2005 Jan 28;94(3):031801. doi: 10.1103/PhysRevLett.94.031801. Epub 2005 Jan 24.

Authors

J Zhang¹, K Abe, K Abe, T Abe, H Aihara, Y Asano, V Aulchenko, T Aushev, T Aziz, S Bahinipati, A M Bakich, A Bay, I Bedny, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bracko, T E Browder, P Chang, Y Chao, K-F Chen, B G Cheon, R Chistov, S-K Choi, Y Choi, A Chuvikov, M Danilov, M Dash, L Y Dong, J Dragic, A Drutskoy, S Eidelman, V Eiges, Y Enari, S Fratina, N Gabyshev, A Garmash, T Gershon, G Gokhroo, B Golob, H Hayashii, M Hazumi, T Higuchi, L Hinz, T Hokuue, Y Hoshi, W-S Hou, Y B Hsiung, T Iijima, A Imoto, K Inami, A Ishikawa, H Ishino, R Itoh, H Iwasaki, M Iwasaki, Y Iwasaki, J H Kang, J S Kang, N Katayama, H Kawai, T Kawasaki, H R Khan, H Kichimi, H J Kim, J H Kim, T H Kim, K Kinoshita, P Koppenburg, S Korpar, P Krizan, P Krokovny, S Kumar, A Kuzmin, Y-J Kwon, G Leder, S E Lee, S H Lee, T Lesiak, J Li, A Limosani, S-W Lin, J Macnaughton, G Majumder, F Mandl, T Matsumoto, W Mitaroff, K Miyabayashi, H Miyake, H Miyata, R Mizuk, D Mohapatra, G R Moloney, T Mori, T Nagamine, Y Nagasaka, M Nakao, S Nishida, O Nitoh, T Nozaki, T Okabe, S Okuno, S L Olsen, W Ostrowicz, H Ozaki, P Pakhlov, C W Park, H Park, N Parslow, L E Piilonen, F J Ronga, M Rozanska, H Sagawa, Y Sakai, T R Sarangi, O Schneider, J Schümann, A J Schwartz, S Semenov, K Senyo, M E Sevior, H Shibuya, B Shwartz, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, T Sumiyoshi, S Suzuki, O Tajima, F Takasaki, K Tamai, M Tanaka, G N Taylor, Y Teramoto, T Tomura, T Tsuboyama, T Tsukamoto, S Uehara, T Uglov, K Ueno, Y Unno, S Uno, G Varner, K E Varvell, S Villa, C C Wang, C H Wang, M-Z Wang, M Watanabe, Y Watanabe, B D Yabsley, Y Yamada, A Yamaguchi, Y Yamashita, M Yamauchi, Heyoung Yang, J Ying, Y Yusa, S L Zang, C C Zhang, Z P Zhang, V Zhilich, T Ziegler, D Zontar; Belle Collaboration

Affiliation

¹ High Energy Accelerator Research Organization (KEK), Tsukuba, Japan.

PMID: 15698249
DOI: 10.1103/PhysRevLett.94.031801

Abstract

We report a measurement of the branching fraction for the decay B+ --> rho(+) pi(0) based on a 140 fb(-1) data sample collected with the Belle detector at the KEKB asymmetric e(+)e(-) collider. We measure the branching fraction B(B(+) --> rho(+)pi(0)) = (13.2 +/- 2.3(stat)(+1.4)(-1.9)(syst)) x 10(-6), and the CP-violating asymmetry A(CP)(B-/+ -->rho(-/+)pi(0))=0.06 +/- 0.17(stat)(+0.04)(-0.05)(syst).