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Evidence for the suppressed decay B- -> DK-, D -> K+ pi(-)pi(0)
- Authors
- Nayak, M[Nayak, M.]; Libby, J[Libby, J.]; Trabelsi, K[Trabelsi, K.]; Adachi, I[Adachi, I.]; Aihara, H[Aihara, H.]; Asner, DM[Asner, D. M.]; Aushev, T[Aushev, T.]; Bakich, AM[Bakich, A. M.]; Bala, A[Bala, A.]; Behera, P[Behera, P.]; Belous, K[Belous, K.]; Bhardwaj, V[Bhardwaj, V.]; Bonvicini, G[Bonvicini, G.]; Bozek, A[Bozek, A.]; Bracko, M[Bracko, M.]; Browder, TE[Browder, T. E.]; Cervenkov, D[Cervenkov, D.]; Chang, MC[Chang, M-C.]; Chang, P[Chang, P.]; Chekelian, V[Chekelian, V.]; Chen, A[Chen, A.]; Cheon, BG[Cheon, B. G.]; Chistov, R[Chistov, R.]; Cho, IS[Cho, I-S.]; Cho, K[Cho, K.]; Chobanova, V[Chobanova, V.]; Choi, Y[Choi, Y.]; Cinabro, D[Cinabro, D.]; Dalseno, J[Dalseno, J.]; Danilov, M[Danilov, M.]; Dolezal, Z[Dolezal, Z.]; Drasal, Z[Drasal, Z.]; Dutta, D[Dutta, D.]; Eidelman, S[Eidelman, S.]; Esen, S[Esen, S.]; Farhat, H[Farhat, H.]; Fast, JE[Fast, J. E.]; Ferber, T[Ferber, T.]; Gaur, V[Gaur, V.]; Gabyshev, N[Gabyshev, N.]; Ganguly, S[Ganguly, S.]; Gillard, R[Gillard, R.]; Goh, YM[Goh, Y. M.]; Golob, B[Golob, B.]; Haba, J[Haba, J.]; Hayashii, H[Hayashii, H.]; Horii, Y[Horii, Y.]; Hoshi, Y[Hoshi, Y.]; Hou, WS[Hou, W-S.]; Hyun, HJ[Hyun, H. J.]; Iijima, T[Iijima, T.]; Ishikawa, A[Ishikawa, A.]; Iwashita, T[Iwashita, T.]; Jaegle, I[Jaegle, I.]; Julius, T[Julius, T.]; Kah, DH[Kah, D. H.]; Kato, E[Kato, E.]; Kim, DY[Kim, D. Y.]; Kim, HJ[Kim, H. J.]; Kim, JB[Kim, J. B.]; Kim, MJ[Kim, M. J.]; Kim, YJ[Kim, Y. J.]; Kinoshita, K[Kinoshita, K.]; Klucar, J[Klucar, J.]; Ko, BR[Ko, B. R.]; Kodys, P[Kodys, P.]; Korpar, S[Korpar, S.]; Krishnan, P[Krishnan, P.]; Krizan, P[Krizan, P.]; Krokovny, P[Krokovny, P.]; Kuhr, T[Kuhr, T.]; Kumita, T[Kumita, T.]; Kuzmin, A[Kuzmin, A.]; Kwon, YJ[Kwon, Y-J.]; Lee, SH[Lee, S-H.]; Li, J[Li, J.]; Li, Y[Li, Y.]; Gioi, LL[Gioi, L. Li]; Liu, Y[Liu, Y.]; Liventsev, D[Liventsev, D.]; Lukin, P[Lukin, P.]; Miyake, H[Miyake, H.]; Mizuk, R[Mizuk, R.]; Mohanty, GB[Mohanty, G. B.]; Moll, A[Moll, A.]; Mori, T[Mori, T.]; Muramatsu, N[Muramatsu, N.]; Mussa, R[Mussa, R.]; Nagasaka, Y[Nagasaka, Y.]; Nakao, M[Nakao, M.]; Nedelkovska, E[Nedelkovska, E.]; Negishi, K[Negishi, K.]; Ng, C[Ng, C.]; Nisar, NK[Nisar, N. K.]; Nitoh, O[Nitoh, O.]; Ogawa, S[Ogawa, S.]; Okuno, S[Okuno, S.]; Onuki, Y[Onuki, Y.]; Pakhlov, P[Pakhlov, P.]; Pakhlova, G[Pakhlova, G.]; Park, CW[Park, C. W.]; Park, H[Park, H.]; Pedlar, TK[Pedlar, T. K.]; Petric, M[Petric, M.]; Piilonen, LE[Piilonen, L. E.]; Ritter, M[Ritter, M.]; Rohrken, M[Roehrken, M.]; Rostomyan, A[Rostomyan, A.]; Sahoo, H[Sahoo, H.]; Saito, T[Saito, T.]; Sakai, Y[Sakai, Y.]; Sandilya, S[Sandilya, S.]; Santelj, L[Santelj, L.]; Sanuki, T[Sanuki, T.]; Savinov, V[Savinov, V.]; Schneider, O[Schneider, O.]; Schnell, G[Schnell, G.]; Schwanda, C[Schwanda, C.]; Schwartz, AJ[Schwartz, A. J.]; Senyo, K[Senyo, K.]; Seon, O[Seon, O.]; Sevior, ME[Sevior, M. E.]; Shapkin, M[Shapkin, M.]; Shen, CP[Shen, C. P.]; Shibata, TA[Shibata, T-A.]; Shiu, JG[Shiu, J-G.]; Shwartz, B[Shwartz, B.]; Sibidanov, A[Sibidanov, A.]; Simon, F[Simon, F.]; Sohn, YS[Sohn, Y-S.]; Sokolov, A[Sokolov, A.]; Solovieva, E[Solovieva, E.]; Staric, M[Staric, M.]; Steder, M[Steder, M.]; Suzuki, Z[Suzuki, Z.]; Tamponi, U[Tamponi, U.]; Tatishvili, G[Tatishvili, G.]; Teramoto, Y[Teramoto, Y.]; Uchida, M[Uchida, M.]; Uglov, T[Uglov, T.]; Unno, Y[Unno, Y.]; Uno, S[Uno, S.]; Urquijo, P[Urquijo, P.]; Vahsen, SE[Vahsen, S. E.]; Van Hulse, C[Van Hulse, C.]; Vanhoefer, P[Vanhoefer, P.]; Varner, G[Varner, G.]; Varvell, KE[Varvell, K. E.]; Wagner, MN[Wagner, M. N.]; Wang, CH[Wang, C. H.]; Wang, MZ[Wang, M-Z.]; Watanabe, Y[Watanabe, Y.]; Williams, KM[Williams, K. M.]; Won, E[Won, E.]; Yamashita, Y[Yamashita, Y.]; Yashchenko, S[Yashchenko, S.]; Yusa, Y[Yusa, Y.]; Zhilich, V[Zhilich, V.]; Zhulanov, V[Zhulanov, V.]; Zupanc, A[Zupanc, A.]
- Issue Date
- 14-Nov-2013
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.88, no.9
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 88
- Number
- 9
- ISSN
- 1550-7998
- Abstract
- We report a study of the suppressed decay B- -> DK-, D -> K+ pi(-) pi(0), where D denotes either a D-0 or a (D) over bar (0) meson. The decay is sensitive to the CP-violating parameter phi(3). Using a data sample of 772 x 10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector, we measure the ratio of branching fractions of the above suppressed decay to the favored decay B- -> DK-, D -> K- pi(+) pi(0). Our result is R-DK = [1.98 +/- 0.62 (stat) +/- 0.24 (syst)] x 10(-2), which indicates the first evidence of the signal for this suppressed decay with a significance of 3.2 standard deviations. We measure the direct CP asymmetry between the suppressed B- and B+ decays to be A(DK) = 0.41 +/- 0.30(stat) +/- 0.05(syst). We also report measurements for the analogous quantities R-D pi and A(D pi) for the decay B- -> D pi(-), D -> K+ pi(-)pi(0).
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