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First observation of CP violation and improved measurement of the branching fraction and polarization of B-0 -> D*(+) D*(-) decaysopen access
- Authors
- Kronenbitter, B[Kronenbitter, B.]; Adachi, I[Adachi, I.]; Aihara, H[Aihara, H.]; Arinstein, K[Arinstein, K.]; Asner, DM[Asner, D. M.]; Aushev, T[Aushev, T.]; Aziz, T[Aziz, T.]; Bakich, AM[Bakich, A. M.]; Barrett, M[Barrett, M.]; Belous, K[Belous, K.]; Bhardwaj, V[Bhardwaj, V.]; Bhuyan, B[Bhuyan, B.]; Bondar, A[Bondar, A.]; Bozek, A[Bozek, A.]; Bracko, M[Bracko, M.]; Brovchenko, O[Brovchenko, O.]; Browder, TE[Browder, T. E.]; Chekelian, V[Chekelian, V.]; Chen, A[Chen, A.]; Chen, P[Chen, P.]; Cheon, BG[Cheon, B. G.]; Chistov, R[Chistov, R.]; Cho, IS[Cho, I. -S.]; Cho, K[Cho, K.]; Choi, Y[Choi, Y.]; Dalseno, J[Dalseno, J.]; Dolezal, Z[Dolezal, Z.]; Drasal, Z[Drasal, Z.]; Drutskoy, A[Drutskoy, A.]; Eidelman, S[Eidelman, S.]; Esen, S[Esen, S.]; Fast, JE[Fast, J. E.]; Feindt, M[Feindt, M.]; Gaur, V[Gaur, V.]; Gabyshev, N[Gabyshev, N.]; Goh, YM[Goh, Y. M.]; Haba, J[Haba, J.]; Hayashii, H[Hayashii, H.]; Horii, Y[Horii, Y.]; Hoshi, Y[Hoshi, Y.]; Hou, WS[Hou, W. -S.]; Hsiung, YB[Hsiung, Y. B.]; Iijima, T[Iijima, T.]; Inami, K[Inami, K.]; Ishikawa, A[Ishikawa, A.]; Itoh, R[Itoh, R.]; Iwabuchi, M[Iwabuchi, M.]; Iwasaki, Y[Iwasaki, Y.]; Julius, T[Julius, T.]; Kang, JH[Kang, J. H.]; Kapusta, P[Kapusta, P.]; Kawasaki, T[Kawasaki, T.]; 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, YJ[Kim, Y. J.]; Kinoshita, K[Kinoshita, K.]; Ko, BR[Ko, B. R.]; Koblitz, S[Koblitz, S.]; Kodys, P[Kodys, P.]; Korpar, S[Korpar, S.]; Kouzes, RT[Kouzes, R. T.]; Krizan, P[Krizan, P.]; Krokovny, P[Krokovny, P.]; Kuhr, T[Kuhr, T.]; Kumar, R[Kumar, R.]; Kumita, T[Kumita, T.]; Kwon, YJ[Kwon, Y. -J.]; Lee, SH[Lee, S. -H.]; Li, J[Li, J.]; Li, Y[Li, Y.]; Libby, J[Libby, J.]; Liu, Y[Liu, Y.]; Liu, ZQ[Liu, Z. Q.]; Liventsev, D[Liventsev, D.]; 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.]; Mohapatra, D[Mohapatra, D.]; Moll, A[Moll, A.]; Nakano, E[Nakano, E.]; Nakao, M[Nakao, M.]; Neubauer, S[Neubauer, S.]; Ng, C[Ng, C.]; Nishida, S[Nishida, S.]; Nishimura, K[Nishimura, K.]; Nitoh, O[Nitoh, O.]; Ohshima, T[Ohshima, T.]; Okuno, S[Okuno, S.]; Olsen, SL[Olsen, S. L.]; Onuki, Y[Onuki, Y.]; Ozaki, H[Ozaki, H.]; Pakhlov, P[Pakhlov, P.]; Pakhlova, G[Pakhlova, G.]; Park, CW[Park, C. W.]; Park, H[Park, H.]; Park, HK[Park, H. K.]; Pestotnik, R[Pestotnik, R.]; Petric, M[Petric, M.]; Piilonen, LE[Piilonen, L. E.]; Prim, M[Prim, M.]; Ritter, M[Ritter, M.]; Rohrken, M[Roehrken, M.]; Ryu, S[Ryu, S.]; Sahoo, H[Sahoo, H.]; Sakai, Y[Sakai, Y.]; Sandilya, S[Sandilya, S.]; Santelj, L[Santelj, L.]; Sanuki, T[Sanuki, T.]; Schneider, O[Schneider, O.]; Schwanda, C[Schwanda, C.]; Schwartz, AJ[Schwartz, A. J.]; Senyo, K[Senyo, K.]; Sevior, ME[Sevior, M. E.]; Shapkin, M[Shapkin, M.]; Shen, CP[Shen, C. P.]; Shibata, TA[Shibata, T. -A.]; Shiu, JG[Shiu, J. -G.]; 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.]; Sumihama, M[Sumihama, M.]; Sumisawa, K[Sumisawa, K.]; Sumiyoshi, T[Sumiyoshi, T.]; Tatishvili, G[Tatishvili, G.]; Teramoto, Y[Teramoto, Y.]; Trabelsi, K[Trabelsi, K.]; Tsuboyama, T[Tsuboyama, T.]; Uchida, M[Uchida, M.]; Uehara, S[Uehara, S.]; Uglov, T[Uglov, T.]; Unno, Y[Unno, Y.]; Uno, S[Uno, S.]; Usov, Y[Usov, Y.]; Vanhoefer, P[Vanhoefer, P.]; Varner, G[Varner, G.]; Varvell, KE[Varvell, K. E.]; Vorobyev, V[Vorobyev, V.]; Wang, CH[Wang, C. H.]; Wang, P[Wang, P.]; Watanabe, Y[Watanabe, Y.]; Williams, KM[Williams, K. M.]; Won, E[Won, E.]; Yabsley, BD[Yabsley, B. D.]; Yamaoka, J[Yamaoka, J.]; Yamashita, Y[Yamashita, Y.]; Zander, D[Zander, D.]; Zhilich, V[Zhilich, V.]; Zhulanov, V[Zhulanov, V.]; Zupanc, A[Zupanc, A.]
- Issue Date
- 18-Oct-2012
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.86, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 86
- Number
- 7
- ISSN
- 1550-7998
- Abstract
- We report the measurement of the branching fraction, the polarization, and the parameters of the time-dependent CP violation in B-0 -> D*(+) D*(-) decays using a data sample of 772 x 10(6)B (B) over bar pairs, collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We obtain a branching fraction of B = (7.82 +/- 0.38 +/- 0.63) x 10(-4), a CP-odd fraction of R-perpendicular to = 0.138 +/- 0.024 +/- 0.006 and, additionally, a fraction of the longitudinal component in the transversity base of R-0 = 0.624 +/- 0.029 +/- 0.011. The measured values of the parameters of the CP violation are SD*+ D*- = 0.79 +/- 0.13 +/- 0.03 and A(D*+ D*-) 0.15 +/- 0.08 +/- 0.04.
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