Study of the suppressed decays B - → [K +π -] DK - and B - → [K +π -] Dπ -

M. Saigo, K. Abe, H. Aihara, M. Akatsu, Y. Asano, V. Aulchenko, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, S. Banerjee, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. BrowderY. Chao, A. Chen, K. F. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, S. Cole, J. Dalseno, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, G. Gokhroo, B. Golob, J. Haba, K. Hayasaka, H. Hayashii, M. Hazumi, T. Higuchi, 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, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, N. Kent, H. R. Khan, H. Kichimi, H. J. Kim, S. K. Kim, S. M. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, C. C. Kuo, A. Kuzmin, Youngjoon Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, Y. Mikami, W. Mitaroff, H. Miyake, R. Mizuk, D. Mohapatra, T. Mori, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, H. Park, K. S. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, A. Poluektov, F. J. Ronga, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, P. Schönmeier, J. Schümann, A. J. Schwartz, S. Semenov, R. Seuster, M. E. Sevior, H. Shibuya, J. B. Singh, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, O. Tajima, F. Takasaki, K. Tamai, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, K. Trabelsi, T. Tsukamoto, S. Uehara, T. Uglov, S. Uno, Y. Ushiroda, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, M. Watanabe, Y. Watanabe, A. Yamaguchi, H. Yamamoto, Y. Yamashita, M. Yamauchi, Y. Yusa, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar, D. Zürcher

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We report a study of the suppressed decays B - → [K +π -] DK - and B - → [K +π -] Dπ -, where [K +π -] D indicates that the K +π - pair originates from a neutral D meson. These decay modes are sensitive to the unitarity triangle angle φ 3. We use a data sample containing 275 × 10 6 BB̄ pairs recorded at the Y(4S) resonance with the Belle detector at the KEKB asymmetric e +e - storage ring. The signal for B - → [K +π -] DK - is not statistically significant, and we set a limit r B < 0.27 at 90% confidence level, where r B is the magnitude of the ratio of amplitudes |A(B - → D̄ 0K -)/A(B - → D 0K -)|. We observe a signal with 6.4σ statistical significance in the related mode, B - → [K +π -] Dπ -.

Original languageEnglish
Article number091601
JournalPhysical review letters
Volume94
Issue number9
DOIs
Publication statusPublished - 2005 Mar 11

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Study of the suppressed decays B <sup>-</sup> → [K <sup>+</sup>π <sup>-</sup>] <sub>D</sub>K <sup>-</sup> and B <sup>-</sup> → [K <sup>+</sup>π <sup>-</sup>] <sub>D</sub>π <sup>-</sup>'. Together they form a unique fingerprint.

  • Cite this

    Saigo, M., Abe, K., Aihara, H., Akatsu, M., Asano, Y., Aulchenko, V., Aushev, T., Bahinipati, S., Bakich, A. M., Ban, Y., Banerjee, S., Bedny, I., Bitenc, U., Bizjak, I., Blyth, S., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., ... Zürcher, D. (2005). Study of the suppressed decays B - → [K +π -] DK - and B - → [K +π -] Dπ - Physical review letters, 94(9), [091601]. https://doi.org/10.1103/PhysRevLett.94.091601