First measurement of φ<inf>3</inf> with a model-independent Dalitz plot analysis of B±→DK±, D→KS0π+π- decay

H. Aihara, K. Arinstein, D. M. Asner, V. Aulchenko, T. Aushev, A. M. Bakich, K. Belous, B. Bhuyan, M. Bischofberger, A. Bondar, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, M. C. Chang, P. Chang, B. G. Cheon, K. Chilikin, R. Chistov, K. ChoY. Choi, J. Dalseno, Z. Doležal, A. Drutskoy, S. Eidelman, D. Epifanov, J. E. Fast, M. Feindt, V. Gaur, N. Gabyshev, A. Garmash, Y. M. Goh, B. Golob, J. Haba, H. Hayashii, Y. Horii, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, M. Iwabuchi, T. Julius, J. H. Kang, T. Kawasaki, C. Kiesling, H. J. Kim, H. O. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, S. Koblitz, P. Kodyš, S. Korpar, P. Križan, P. Krokovny, B. Kronenbitter, T. Kuhr, T. Kumita, A. Kuzmin, Y. J. Kwon, S. H. Lee, J. Li, Y. Li, J. Libby, C. Liu, Y. Liu, Z. Q. Liu, D. Liventsev, R. Louvot, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, T. Mori, N. Muramatsu, Y. Nagasaka, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Ogawa, T. Ohshima, S. Okuno, S. L. Olsen, G. Pakhlova, C. W. Park, H. Park, H. K. Park, K. S. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, A. Poluektov, K. Prothmann, M. Ritter, M. Röhrken, M. Rozanska, S. Ryu, H. Sahoo, Y. Sakai, T. Sanuki, Y. Sato, O. Schneider, C. Schwanda, A. J. Schwartz, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, T. A. Shibata, J. G. Shiu, B. Shwartz, A. Sibidanov, F. Simon, J. B. Singh, P. Smerkol, Y. S. Sohn, A. Sokolov, E. Solovieva, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, G. Tatishvili, K. Trabelsi, M. Uchida, S. Uehara, Y. Unno, S. Uno, P. Urquijo, P. Vanhoefer, G. Varner, K. E. Varvell, A. Vinokurova, V. Vorobyev, C. H. Wang, M. Z. Wang, P. Wang, Y. Watanabe, K. M. Williams, Eunil Won, B. D. Yabsley, H. Yamamoto, J. Yamaoka, Y. Yamashita, C. Z. Yuan, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

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Abstract

We present the first measurement of the angle φ<inf>3</inf> of the unitarity triangle using a model-independent Dalitz plot analysis of B <sup>±</sup>→DK<sup>±</sup>, D→KS0π<sup>+</sup>π <sup>-</sup> decays. The method uses, as input, measurements of the strong phase of the D→KS0π<sup>+</sup>π<sup>-</sup> amplitude from the CLEO Collaboration. The result is based on the full data set of 772×106 BB̄ pairs collected by the Belle experiment at the Υ(4S) resonance. We obtain φ<inf>3</inf>=(77.3-14.9+15.1±4.1±4.3)° and the suppressed amplitude ratio r<inf>B</inf>=0.145±0.030±0. 010±0.011. Here the first error is statistical, the second is the experimental systematic uncertainty, and the third is the error due to the precision of the strong-phase parameters obtained by CLEO.

Original languageEnglish
Article number112014
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number11
DOIs
Publication statusPublished - 2012 Jun 26

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ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Aihara, H., Arinstein, K., Asner, D. M., Aulchenko, V., Aushev, T., Bakich, A. M., Belous, K., Bhuyan, B., Bischofberger, M., Bondar, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Chang, M. C., Chang, P., Cheon, B. G., Chilikin, K., Chistov, R., ... Zupanc, A. (2012). First measurement of φ<inf>3</inf> with a model-independent Dalitz plot analysis of B±→DK±, D→KS0π+π- decay. Physical Review D - Particles, Fields, Gravitation and Cosmology, 85(11), [112014]. https://doi.org/10.1103/PhysRevD.85.112014