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Study of the suppressed B meson decay B--> DK-, D -> K+pi(-)
- Authors
- Horii, Y.; Trabelsi, K.; Yamamoto, H.; Adachi, I.; Aihara, H.; Arinstein, K.; Aulchenko, V.; Balagura, V.; Barberio, E.; Bedny, I.; Belous, K.; Bhardwaj, V.; Bitenc, U.; Blyth, S.; Bozek, A.; Bracko, M.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, W. T.; Cheon, B. G.; Chistov, R.; Cho, I.-S.; Choi, S.-K.; Choi, Y.; Dalseno, J.; Dash, M.; Eidelman, S.; Gabyshev, N.; Ha, H.; Haba, J.; Hara, T.; Hayasaka, K.; Hazumi, M.; Heffernan, D.; Hoshi, Y.; Hou, W.-S.; Hyun, H. J.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwabuchi, M.; Iwasaki, M.; Iwasaki, Y.; Kah, D. H.; Kaji, H.; Kang, J. H.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H. J.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Krizan, P.; Krokovny, P.; Kuo, C. C.; Kuroki, Y.; Kuzmin, A.; Kwon, Y.-J.; Lee, J. S.; Lee, M. J.; Lee, S. E.; Lesiak, T.; Li, J.; Lin, S.-W.; Liu, C.; Liventsev, D.; Mandl, F.; McOnie, S.; Medvedeva, T.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Nagamine, T.; Nagasaka, Y.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Ozaki, H.; Pakhlova, G.; Park, C. W.; Park, H.; Park, H. K.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shiu, J.-G.; Somov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Suzuki, S.; Takasaki, F.; Tamura, N.; Tanaka, M.; Teramoto, Y.; Tsuboyama, T.; Uehara, S.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Varner, G.; Varvell, K. E.; Vervink, K.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Wedd, R.; Won, E.; Yamashita, Y.; Yamauchi, M.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.; Zyukova, O.
- Issue Date
- 10월-2008
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.78, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 78
- Number
- 7
- ISSN
- 1550-7998
- Abstract
- We report a study of the suppressed B meson decay B--> DK- followed by D -> K+pi(-), where D indicates a D-0 or (D)overbar(0) state. The two decay paths interfere and provide information on the CP-violating angle phi(3). We use a data sample containing 657x10(6) B(B)overbar pairs recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) storage ring. We do not find significant evidence for the mode B--> DK-, D -> K+pi(-), and set an upper limit of r(B)< 0.19, where r(B) is the magnitude of the ratio of amplitudes vertical bar A(B-->(D)K-0(-))/A(B-->(DK-)-K-0)vertical bar. The decay B--> D pi(-), D -> K+pi(-) is also analyzed as a reference, for which we observe a signal with 6.6 sigma significance, and measure the charge asymmetry A(D pi) to be -0.02(-0.16)(+0.15)(stat)+/- 0.04(syst). In addition, the ratio B(B-->(DK-)-K-0)/B(B--> D-0 pi(-)) is measured to be [6.77 +/- 0.23(stat)+/- 0.30(syst)]x10(-2).
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