Search for the decay B0→DK *0 followed by D→K -π +

K. Negishi, Y. Horii, Y. Onuki, T. Sanuki, H. Yamamoto, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, A. M. Bakich, Y. Ban, K. Belous, B. Bhuyan, A. Bondar, T. E. Browder, M. C. Chang, A. Chen, P. Chen, B. G. Cheon, K. ChilikinR. Chistov, I. S. Cho, K. Cho, Y. Choi, J. Dalseno, Z. Doleal, Z. Drásal, A. Drutskoy, S. Eidelman, J. E. Fast, V. Gaur, N. Gabyshev, Y. M. Goh, J. Haba, H. Hayashii, Y. Hoshi, W. S. Hou, H. J. Hyun, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, M. Iwabuchi, Y. Iwasaki, T. Iwashita, T. Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. J. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, B. R. Ko, P. Kody, S. Korpar, R. T. Kouzes, P. Krokovny, T. Kuhr, Y. J. Kwon, S. H. Lee, J. Libby, C. Liu, Y. Liu, Z. Q. Liu, R. Louvot, D. Matvienko, S. McOnie, K. Miyabayashi, H. Miyata, Y. Miyazaki, D. Mohapatra, A. Moll, N. Muramatsu, E. Nakano, M. Nakao, S. Nishida, K. Nishimura, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, G. Pakhlova, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Röhrken, S. Ryu, K. Sakai, Y. Sakai, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, M. Shapkin, V. Shebalin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, P. Smerkol, Y. S. Sohn, E. Solovieva, S. Stanič, M. Starič, M. Sumihama, T. Sumiyoshi, S. Suzuki, G. Tatishvili, Y. Teramoto, K. Trabelsi, M. Uchida, T. Uglov, Y. Unno, S. Uno, P. Urquijo, G. Varner, K. E. Varvell, V. Vorobyev, C. H. Wang, M. Z. Wang, P. Wang, M. Watanabe, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamashita, C. C. Zhang, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

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Abstract

We report a study of the decay B0→DK +π - followed by D→K -π +, where D indicates D0 or D ̄0. We reconstruct the DK +π - state in a phase space corresponding to DK *(892)0. The CP-violating angle 3 affects its decay rate via the interference between b→u and b→c transitions. The result is obtained from a 711fb -1 data sample that contains 772×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We measure the ratio R DK *0 Γ(B0→[K -π +] DK +π -)/Γ(B0→[K +π -] DK +π -) to be (4.5-5.0-1.8+5.6+2.8) ×10 -2, and set an upper limit of R DK *0<0. 16 at the 95% credible interval.

Original languageEnglish
Article number011101
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume86
Issue number1
DOIs
Publication statusPublished - 2012 Jul 3

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Negishi, K., Horii, Y., Onuki, Y., Sanuki, T., Yamamoto, H., Adachi, I., Aihara, H., Asner, D. M., Aushev, T., Bakich, A. M., Ban, Y., Belous, K., Bhuyan, B., Bondar, A., Browder, T. E., Chang, M. C., Chen, A., Chen, P., Cheon, B. G., ... Zupanc, A. (2012). Search for the decay B0→DK *0 followed by D→K -π + Physical Review D - Particles, Fields, Gravitation and Cosmology, 86(1), [011101]. https://doi.org/10.1103/PhysRevD.86.011101