Evidence for B-->eta'pi and improved measurements for B-->eta'K

J Schümann; C H Wang; K Abe; I Adachi; H Aihara; D Anipko; K Arinstein; Y Asano; T Aushev; A M Bakich; V Balagura; E Barberio; M Barbero; A Bay; I Bedny; U Bitenc; I Bizjak; S Blyth; A Bondar; A Bozek; M Bracko; T E Browder; M-C Chang; P Chang; Y Chao; A Chen; W T Chen; B G Cheon; Y Choi; Y K Choi; A Chuvikov; S Cole; 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; J Haba; T Hara; N C Hastings; K Hayasaka; H Hayashii; M Hazumi; L Hinz; 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; J H Kang; P Kapusta; N Katayama; H Kawai; T Kawasaki; H R Khan; H Kichimi; S K Kim; S M Kim; K Kinoshita; R Kulasiri; R Kumar; C C Kuo; A Kuzmin; Y-J Kwon; J S Lange; J Lee; T Lesiak; A Limosani; D Liventsev; J MacNaughton; G Majumder; F Mandl; D Marlow; T Matsumoto; A Matyja; W Mitaroff; H Miyake; H Miyata; Y Miyazaki; R Mizuk; G R Moloney; T Mori; T Nagamine; I Nakamura; E Nakano; M Nakao; Z Natkaniec; S Nishida; O Nitoh; S Ogawa; T Ohshima; T Okabe; S Okuno; S L Olsen; H Ozaki; P Pakhlov; H Palka; C W Park; H Park; N Parslow; L S Peak; R Pestotnik; L E Piilonen; M Rozanska; 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; A Somov; N Soni; R Stamen; S Stanic; M Staric; K Sumisawa; S 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; K Ueno; S Uno; P Urquijo; Y Usov; G Varner; K E Varvell; S Villa; C C Wang; M-Z Wang; Y Watanabe; E Won; Q L Xie; A Yamaguchi; Y Yamashita; M Yamauchi; J Ying; Y Yusa; C C Zhang; L M Zhang; Z P Zhang; V Zhilich; D Zürcher; Belle Collaboration

doi:10.1103/PhysRevLett.97.061802

Evidence for B-->eta'pi and improved measurements for B-->eta'K

Phys Rev Lett. 2006 Aug 11;97(6):061802. doi: 10.1103/PhysRevLett.97.061802. Epub 2006 Aug 10.

Authors

J Schümann¹, C H Wang, K Abe, I Adachi, H Aihara, D Anipko, K Arinstein, Y Asano, T Aushev, A M Bakich, V Balagura, E Barberio, M Barbero, A Bay, I Bedny, U Bitenc, I Bizjak, S Blyth, A Bondar, A Bozek, M Bracko, T E Browder, M-C Chang, P Chang, Y Chao, A Chen, W T Chen, B G Cheon, Y Choi, Y K Choi, A Chuvikov, S Cole, 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, J Haba, T Hara, N C Hastings, K Hayasaka, H Hayashii, M Hazumi, L Hinz, 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, J H Kang, P Kapusta, N Katayama, H Kawai, T Kawasaki, H R Khan, H Kichimi, S K Kim, S M Kim, K Kinoshita, R Kulasiri, R Kumar, C C Kuo, A Kuzmin, Y-J Kwon, J S Lange, J Lee, T Lesiak, A Limosani, D Liventsev, J MacNaughton, G Majumder, F Mandl, D Marlow, T Matsumoto, A Matyja, W Mitaroff, H Miyake, H Miyata, Y Miyazaki, R Mizuk, G R Moloney, T Mori, T Nagamine, I Nakamura, E Nakano, M Nakao, Z Natkaniec, S Nishida, O Nitoh, S Ogawa, T Ohshima, T Okabe, S Okuno, S L Olsen, H Ozaki, P Pakhlov, H Palka, C W Park, H Park, N Parslow, L S Peak, R Pestotnik, L E Piilonen, M Rozanska, 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, A Somov, N Soni, R Stamen, S Stanic, M Staric, K Sumisawa, S 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, K Ueno, S Uno, P Urquijo, Y Usov, G Varner, K E Varvell, S Villa, C C Wang, M-Z Wang, Y Watanabe, E Won, Q L Xie, A Yamaguchi, Y Yamashita, M Yamauchi, J Ying, Y Yusa, C C Zhang, L M Zhang, Z P Zhang, V Zhilich, D Zürcher; Belle Collaboration

Affiliation

¹ National United University, Miao Li.

PMID: 17026158
DOI: 10.1103/PhysRevLett.97.061802

Abstract

We report evidence for the exclusive two-body charmless hadronic B meson decay B-->eta'pi, and improved measurements of B-->eta'K. The results are obtained from a data sample of 386x10(6) BB pairs collected at the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure B(B+-->eta'pi+)=[1.76(-0.62)(+0.67)(stat)(-0.14)(+0.15)(syst)]x10(-6) and B(B0-->eta'pi0)=[2.79(-0.96)(+1.02)(stat)(-0.34)(+0.25)(syst)]x10(-6). We also find the ratio of B(B+-->eta'K+)/B(B0-->eta'K0)=1.17+/-0.08(stat)+/-0.03(syst) and measure the direct CP asymmetries for the charged modes.