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Measurement of the Decay B-s(0) -> D-s(-)pi(+) and Evidence for B-s(0) -> (DsK +/-)-K--/+ in e(+) e(-) Annihilation at root s approximate to 10.87 GeV
- Authors
- Louvot, R[Louvot, R.]; Wicht, J[Wicht, J.]; Schneider, O[Schneider, O.]; Adachi, I[Adachi, I.]; Aihara, H[Aihara, H.]; Arinstein, K[Arinstein, K.]; Aulchenko, V[Aulchenko, V.]; Aushev, T[Aushev, T.]; Bakich, AM[Bakich, A. M.]; Balagura, V[Balagura, V.]; Bay, A[Bay, A.]; Bhardwaj, V[Bhardwaj, V.]; Bitenc, U[Bitenc, U.]; Bondar, A[Bondar, A.]; Bozek, A[Bozek, A.]; Bracko, M[Bracko, M.]; Browder, TE[Browder, T. E.]; Chen, A[Chen, A.]; Cheon, BG[Cheon, B. G.]; Chistov, R[Chistov, R.]; Cho, IS[Cho, I. -S.]; Choi, Y[Choi, Y.]; Dalseno, J[Dalseno, J.]; Danilov, M[Danilov, M.]; Dash, M[Dash, M.]; Drutskoy, A[Drutskoy, A.]; Dungel, W[Dungel, W.]; Eidelman, S[Eidelman, S.]; Gabyshev, N[Gabyshev, N.]; Goldenzweig, P[Goldenzweig, P.]; Golob, B[Golob, B.]; Ha, H[Ha, H.]; Haba, J[Haba, J.]; Hayasaka, K[Hayasaka, K.]; Hayashii, H[Hayashii, H.]; Hazumi, M[Hazumi, M.]; Hoshi, Y[Hoshi, Y.]; Hou, WS[Hou, W. -S.]; Hyun, HJ[Hyun, H. J.]; Iijima, T[Iijima, T.]; Inami, K[Inami, K.]; Ishikawa, A[Ishikawa, A.]; Ishino, H[Ishino, H.]; Itoh, R[Itoh, R.]; Iwasaki, M[Iwasaki, M.]; Joshi, NJ[Joshi, N. J.]; Kah, DH[Kah, D. H.]; Kang, JH[Kang, J. H.]; Katayama, N[Katayama, N.]; Kawai, H[Kawai, H.]; Kawasaki, T[Kawasaki, T.]; Kichimi, H[Kichimi, H.]; Kim, SK[Kim, S. K.]; Kim, YI[Kim, Y. I.]; Kim, YJ[Kim, Y. J.]; Kinoshita, K[Kinoshita, K.]; Korpar, S[Korpar, S.]; Krizan, P[Krizan, P.]; Krokovny, P[Krokovny, P.]; Kumar, R[Kumar, R.]; Kuzmin, A[Kuzmin, A.]; Kwon, YJ[Kwon, Y. -J.]; Kyeong, SH[Kyeong, S. -H.]; Lange, JS[Lange, J. S.]; Lee, JS[Lee, J. S.]; Lee, MJ[Lee, M. J.]; Lee, SE[Lee, S. E.]; Lesiak, T[Lesiak, T.]; Li, J[Li, J.]; Limosani, A[Limosani, A.]; Lin, SW[Lin, S. -W.]; Liventsev, D[Liventsev, D.]; Mandl, F[Mandl, F.]; Matyja, A[Matyja, A.]; McOnie, S[McOnie, S.]; Medvedeva, T[Medvedeva, T.]; Miyabayashi, K[Miyabayashi, K.]; Miyake, H[Miyake, H.]; Miyata, H[Miyata, H.]; Miyazaki, Y[Miyazaki, Y.]; Mizuk, R[Mizuk, R.]; Mori, T[Mori, T.]; Nakano, E[Nakano, E.]; Nakao, M[Nakao, M.]; Nishida, S[Nishida, S.]; Nitoh, O[Nitoh, O.]; Ogawa, S[Ogawa, S.]; Ohshima, T[Ohshima, T.]; Okuno, S[Okuno, S.]; Ozaki, H[Ozaki, H.]; Pakhlova, G[Pakhlova, G.]; Park, CW[Park, C. W.]; Park, HK[Park, H. K.]; Pestotnik, R[Pestotnik, R.]; Piilonen, LE[Piilonen, L. E.]; Sahoo, H[Sahoo, H.]; Sakai, Y[Sakai, Y.]; Schumann, J[Schumann, J.]; Schwartz, AJ[Schwartz, A. J.]; Sekiya, A[Sekiya, A.]; Senyo, K[Senyo, K.]; Sevior, ME[Sevior, M. E.]; Shapkin, M[Shapkin, M.]; Shiu, JG[Shiu, J. -G.]; Singh, JB[Singh, J. B.]; Somov, A[Somov, A.]; Stanic, S[Stanic, S.]; Staric, M[Staric, M.]; Sumisawa, K[Sumisawa, K.]; Sumiyoshi, T[Sumiyoshi, T.]; Tanaka, M[Tanaka, M.]; Taylor, GN[Taylor, G. N.]; Teramoto, Y[Teramoto, Y.]; Tikhomirov, I[Tikhomirov, I.]; Trabelsi, K[Trabelsi, K.]; Uehara, S[Uehara, S.]; Uglov, T[Uglov, T.]; Unno, Y[Unno, Y.]; Uno, S[Uno, S.]; Usov, Y[Usov, Y.]; Varner, G[Varner, G.]; Vervink, K[Vervink, K.]; Wang, CC[Wang, C. C.]; Wang, CH[Wang, C. H.]; Wang, P[Wang, P.]; Wang, XL[Wang, X. L.]; Watanabe, Y[Watanabe, Y.]; Wedd, R[Wedd, R.]; Won, E[Won, E.]; Yabsley, BD[Yabsley, B. D.]; Yamashita, Y[Yamashita, Y.]; Yamauchi, M[Yamauchi, M.]; Zhang, ZP[Zhang, Z. P.]; Zhilich, V[Zhilich, V.]; Zhulanov, V[Zhulanov, V.]; Zivko, T[Zivko, T.]; Zupanc, A[Zupanc, A.]; Zwahlen, N[Zwahlen, N.]; Zyukova, O[Zyukova, O.]
- Issue Date
- 16-Jan-2009
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.102, no.2
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 102
- Number
- 2
- ISSN
- 0031-9007
- Abstract
- We have studied B-s(0) -> D-s(-)pi(+) and B-s(0) -> (DsK +/-)-K--/+ decays using 23.6 fb(-1) of data collected at the Y(5S) resonance with the Belle detector at the KEKB e(+) e(-) collider. This highly pure B-s(0) -> D-s(-)pi(+) sample is used to measure the branching fraction, B(B-s(0) -> D-s(-)pi(+)) = [3.67(-0.33)(+0.35)(stat)(-0.42)(+0.43)(syst) +/- 0.49(f(s))] x 10(-3) (f(s) = N-Bs(*)(B) over bars(*)/N-b (b) over bar and the fractions of B-s(0) event types at the Y(d5S) energy, in particular N-Bs(*)(B) over bars(*)/N-Bs(*)(B) over bars(*) = (90.1(-4.0)(+3.8) +/- 0.2)%. We also determine the masses M(B-s(0)) = (5364.4 +/- 1.3 +/- 0.7) MeV/c(2) and M(B-s*) = (5416.4 +/- 0.4 +/- 0.5) MeV/c(2). In addition, we observe B-s(0) -> (DsK +/-)-K--/+ decays with a significance of 3.5 sigma and measure B(B-s(0) -> (DsK +/-)-K--/+) = [2.4-1.0+1.2(stat) +/- 0.3(syst) +/- 0.3(f(s))] x 10(-4).
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