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Measurement of the CP-Violation Parameter sin2 phi(1) with a New Tagging Method at the Y(5S) Resonanceopen access
- Authors
- Sato, Y[Sato, Y.]; Yamamoto, H[Yamamoto, H.]; Aihara, H[Aihara, H.]; Asner, DM[Asner, D. M.]; Aulchenko, V[Aulchenko, V.]; Aushev, T[Aushev, T.]; Aziz, T[Aziz, T.]; Bakich, AM[Bakich, A. M.]; Bhardwaj, V[Bhardwaj, V.]; Bhuyan, B[Bhuyan, B.]; Bischofberger, M[Bischofberger, M.]; Bondar, A[Bondar, A.]; Bozek, A[Bozek, A.]; Bracko, M[Bracko, M.]; Browder, TE[Browder, T. E.]; Chang, P[Chang, P.]; Chen, P[Chen, P.]; Cheon, BG[Cheon, B. G.]; Chilikin, K[Chilikin, K.]; Chistov, R[Chistov, R.]; Cho, IS[Cho, I. -S.]; Cho, K[Cho, K.]; Choi, SK[Choi, S. -K.]; Choi, Y[Choi, Y.]; Dalseno, J[Dalseno, J.]; Dolezal, Z[Dolezal, Z.]; Drasal, Z[Drasal, Z.]; Eidelman, S[Eidelman, S.]; Epifanov, D[Epifanov, D.]; Fast, JE[Fast, J. E.]; Gaur, V[Gaur, V.]; Gabyshev, N[Gabyshev, N.]; Goh, YM[Goh, Y. M.]; Golob, B[Golob, B.]; Haba, J[Haba, J.]; Hara, T[Hara, T.]; Hayasaka, K[Hayasaka, K.]; Hayashii, H[Hayashii, H.]; Horii, Y[Horii, Y.]; Hoshi, Y[Hoshi, Y.]; Hou, WS[Hou, W. -S.]; Hyun, HJ[Hyun, H. J.]; Ishikawa, A[Ishikawa, A.]; Itoh, R[Itoh, R.]; Iwabuchi, M[Iwabuchi, M.]; Iwasaki, Y[Iwasaki, Y.]; Iwashita, T[Iwashita, T.]; Julius, T[Julius, T.]; Kapusta, P[Kapusta, P.]; Kawasaki, T[Kawasaki, T.]; Kichimi, H[Kichimi, H.]; Kiesling, C[Kiesling, C.]; Kim, HJ[Kim, H. J.]; Kim, HO[Kim, H. O.]; Kim, JB[Kim, J. B.]; Kim, JH[Kim, J. H.]; Kim, KT[Kim, K. T.]; Kim, MJ[Kim, M. J.]; Kim, SK[Kim, S. K.]; Kim, YJ[Kim, Y. J.]; Kinoshita, K[Kinoshita, K.]; Ko, BR[Ko, B. R.]; Kobayashi, N[Kobayashi, N.]; Kodys, P[Kodys, P.]; Korpar, S[Korpar, S.]; Krizan, P[Krizan, P.]; Krokovny, P[Krokovny, P.]; Kuhr, T[Kuhr, T.]; Kumar, R[Kumar, R.]; Kumita, T[Kumita, T.]; Kuzmin, A[Kuzmin, A.]; Kwon, YJ[Kwon, Y. -J.]; Lange, JS[Lange, J. S.]; Lee, SH[Lee, S. -H.]; Li, J[Li, J.]; Li, Y[Li, Y.]; Liu, C[Liu, C.]; Liu, ZQ[Liu, Z. Q.]; Louvot, R[Louvot, R.]; McOnie, S[McOnie, S.]; Miyabayashi, K[Miyabayashi, K.]; Miyata, H[Miyata, H.]; Mizuk, R[Mizuk, R.]; Mohanty, GB[Mohanty, G. B.]; Moll, A[Moll, A.]; Muramatsu, N[Muramatsu, N.]; Nakano, E[Nakano, E.]; Nakao, M[Nakao, M.]; Nakazawa, H[Nakazawa, H.]; Natkaniec, Z[Natkaniec, Z.]; Nishida, S[Nishida, S.]; Nishimura, K[Nishimura, K.]; Nitoh, O[Nitoh, O.]; Ogawa, S[Ogawa, S.]; Ohshima, T[Ohshima, T.]; Okuno, S[Okuno, S.]; Olsen, SL[Olsen, S. L.]; Onuki, Y[Onuki, Y.]; Ostrowicz, W[Ostrowicz, W.]; Pakhlov, P[Pakhlov, P.]; Pakhlova, G[Pakhlova, G.]; Park, CW[Park, C. W.]; Park, H[Park, H.]; Park, HK[Park, H. K.]; Pedlar, TK[Pedlar, T. K.]; Petric, M[Petric, M.]; Piilonen, LE[Piilonen, L. E.]; Poluektov, A[Poluektov, A.]; Rohrken, M[Roehrken, M.]; Ryu, S[Ryu, S.]; Sahoo, H[Sahoo, H.]; Sakai, Y[Sakai, Y.]; Sanuki, T[Sanuki, T.]; Schneider, O[Schneider, O.]; Schwanda, C[Schwanda, C.]; Schwartz, AJ[Schwartz, A. J.]; Seidl, R[Seidl, R.]; 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.]; Smerkol, P[Smerkol, P.]; Sohn, YS[Sohn, Y. -S.]; Sokolov, A[Sokolov, A.]; Solovieva, E[Solovieva, E.]; Stanic, S[Stanic, S.]; Staric, M[Staric, M.]; Stypula, J[Stypula, J.]; Sumihama, M[Sumihama, M.]; Sumiyoshi, T[Sumiyoshi, T.]; Tanaka, S[Tanaka, S.]; Tatishvili, G[Tatishvili, G.]; Teramoto, Y[Teramoto, Y.]; Trabelsi, K[Trabelsi, K.]; Uchida, M[Uchida, M.]; Uglov, T[Uglov, T.]; Unno, Y[Unno, Y.]; Uno, S[Uno, S.]; Urquijo, P[Urquijo, P.]; Varner, G[Varner, G.]; Varvell, KE[Varvell, K. E.]; Wang, CH[Wang, C. H.]; Wang, MZ[Wang, M. -Z.]; Wang, P[Wang, P.]; Wang, XL[Wang, X. L.]; Watanabe, M[Watanabe, M.]; Watanabe, Y[Watanabe, Y.]; Wicht, J[Wicht, J.]; Won, E[Won, E.]; Yabsley, BD[Yabsley, B. D.]; Yamashita, Y[Yamashita, Y.]; Yusa, Y[Yusa, Y.]; Zhang, ZP[Zhang, Z. P.]; Zhilich, V[Zhilich, V.]; Zhulanov, V[Zhulanov, V.]; Zupanc, A[Zupanc, A.]
- Issue Date
- 23-Apr-2012
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.108, no.17
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 108
- Number
- 17
- ISSN
- 0031-9007
- Abstract
- We report a measurement of the CP-violation parameter sin2 phi(1) at the Y(5S) resonance using a new tagging method, called "B-pi tagging.'' In Y(5S) decays containing a neutral B meson, a charged B, and a charged pion, the neutral B is reconstructed in the J / psi K-S(0) CP-eigenstate decay channel. The initial flavor of the neutral B meson at the moment of the Y(5S) decay is opposite to that of the charged B and may thus be inferred from the charge of the pion without reconstructing the charged B. From the asymmetry between B-pi(+) and B-pi(-) tagged J / psi K-S(0) yields, we determine sin2 phi(1) 0.57 +/- 0.58(stat) +/- 0.06(syst). The results are based on 121 fb(-1) of data recorded by the Belle detector at the KEKB e(+)e(-) collider.
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