Evidence for B→η′π and improved measurements for B→η′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. BozekM. Bračko, 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. Gorišek, 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. Stanič, M. Starič, 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

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24 Citations (Scopus)

Abstract

We report evidence for the exclusive two-body charmless hadronic B meson decay B→η′π, and improved measurements of B→η′ K. The results are obtained from a data sample of 386×106 BB̄ pairs collected at the Υ(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure B(B+→η′π+)=[1.76- 0.62+0.67(stat)-0.14+0.15(syst)]×10-6 and B(B0→η′π0)=[2. 79-0.96+1.02(stat)-0.34+0.25(syst)]×10-6. We also find the ratio of B(B+→η′K+)B(B0→η′K0)=1.17±0.08(stat) ±0.03(syst) and measure the direct CP asymmetries for the charged modes.

Original languageEnglish
Article number061802
JournalPhysical review letters
Volume97
Issue number6
DOIs
Publication statusPublished - 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Schümann, J., Wang, C. H., Abe, K., Adachi, I., Aihara, H., Anipko, D., Arinstein, K., Asano, Y., Aushev, T., Bakich, A. M., Balagura, V., Barberio, E., Barbero, M., Bay, A., Bedny, I., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., ... Zürcher, D. (2006). Evidence for B→η′π and improved measurements for B→η′K. Physical review letters, 97(6), [061802]. https://doi.org/10.1103/PhysRevLett.97.061802