Evidence for the Suppressed Decay B- -> DK-, D -> K+pi-

  • Horii, Y.
  • Trabelsi, K.
  • Yamamoto, H.
  • Adachi, I.
  • Aihara, H.
  • ... Cheon, Byung Gu
  • 외 139명
Citations

WEB OF SCIENCE

45
Citations

SCOPUS

58

초록

The suppressed decay chain B- -> DK-, D -> K+pi(-), where D indicates a (D) over bar (0) or D-0 state, provides important information on the CP-violating angle phi(3). We measure the ratio R-DK of the decay rates to the favored mode B- -> DK-, D -> K+pi(-) to be R-DK = [1.63(-0.41)(+0.44)(stat)(-0.13)(+0.07)(syst)] x 10(-2), which indicates the first evidence of the signal with a significance of 4.1 sigma. We also measure the asymmetry A(DK) between the charge-conjugate decays to be A(DK) = -0.39(-0.28)(+0.26)(stat)(-0.03)(+0.04)(syst). The results are based on the full 772 x 10(6) B (B) over bar pair data sample collected at the Gamma(4S) resonance with the Belle detector.

키워드

CP-VIOLATIONBELLE
제목
Evidence for the Suppressed Decay B- -> DK-, D -> K+pi-
저자
Horii, Y.Trabelsi, K.Yamamoto, H.Adachi, I.Aihara, H.Arinstein, K.Aulchenko, V.Aushev, T.Balagura, V.Barberio, E.Belous, K.Bhuyan, B.Bischofberger, M.Bozek, A.Bracko, M.Browder, T. E.Chang, M. -C.Chang, P.Chen, A.Chen, P.Cheon, Byung GuChiang, C. -C.Cho, I. -S.Cho, K.Choi, Y.Dolezal, Z.Eidelman, S.Feindt, M.Gaur, V.Gabyshev, N.Garmash, A.Golob, B.Ha, H.Haba, J.Hayasaka, K.Hoshi, Y.Hou, W. -S.Hsiung, Y. B.Hyun, H. J.Iijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwabuchi, M.Iwasaki, Y.Iwashita, T.Joshi, N. J.Julius, T.Kang, J. H.Kawasaki, T.Kichimi, H.Kiesling, C.Kim, H. J.Kim, H. O.Kim, M. J.Kim, Y. J.Kinoshita, K.Ko, B. R.Kobayashi, N.Korpar, S.Krizan, P.Kuhr, T.Kumar, R.Kwon, Y. -J.Lee, M. J.Lee, S. -H.Li, J.Liu, C.Liventsev, D.Louvot, R.Matyja, A.McOnie, S.Miyabayashi, K.Miyata, H.Miyazaki, Y.Mohanty, G. B.Moll, A.Mori, T.Muramatsu, N.Nakano, E.Nakazawa, H.Natkaniec, Z.Neubauer, S.Nishida, S.Nitoh, O.Ohshima, T.Okuno, S.Onuki, Y.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H. K.Pestotnik, R.Petric, M.Piilonen, L. E.Poluektov, A.Prim, M.Prothmann, K.Roehrken, M.Ryu, S.Sahoo, H.Sakai, Y.Schneider, O.Schwanda, C.Schwartz, A. J.Senyo, K.Seon, O.Sevior, M. E.Shapkin, M.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Simon, F.Smerkol, P.Sohn, Y. -S.Solovieva, E.Stanic, S.Staric, M.Sumihama, M.Sumiyoshi, T.Suzuki, S.Tanaka, S.Teramoto, Y.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Usov, Y.Varner, G.Vinokurova, A.Vossen, A.Wang, C. H.Wang, P.Watanabe, M.Watanabe, Y.Wicht, J.Won, E.Yabsley, B. D.Yamashita, Y.Zander, D.Zhang, Z. P.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevLett.106.231803
발행일
2011-06
유형
Article
저널명
Physical Review Letters
106
23
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