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| 題名: | Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( *) ±D ∓ decays |
| 作者: | 陳鎰鋒;Röhrken, M.;Adachi, I.;Asner, D. M.;Aushev, T.;Barrett, M.;Belous, K.;Bhardwaj, V.;Bhuyan, B.;Bischofberger, M.;Bonvicini, G.;Brovchenko, O.;Browder, T. E.;Chen, A.;Chen, P.;Cho, K.;Dalseno, J.;Drutskoy, A.;Fast, J. E.;Feindt, M.;Gaur, V.;Garmash, A.;Goh, Y. M.;Haba, J.;Horii, Y.;Hsiung, Y. B.;Hyun, H. J.;Iijima, T.;Ishikawa, A.;Itoh, R.;Julius, T.;Kang, J. H.;Kawasaki, T.;Kim, H. J.;Kim, H. O.;Kim, K. T.;Kim, M. J.;Kim, Y. J.;Kinoshita, K.;Ko, B. R.;Kodyš, P.;Korpar, S.;Kouzes, R. T.;Križan, P.;Krokovny, P.;Kuhr, T.;Kumita, T.;Kwon, Y. -J.;Li, J.;Libby, J.;Liu, Y.;Liventsev, D.;Miyabayashi, K.;Miyata, H.;Mizuk, R.;Mohanty, G. B.;Moll, A.;Nakao, M.;Nishida, S.;Ohshima, T.;Okuno, S.;Olsen, S. L.;Park, C. W.;Park, H. K.;Park, K. S.;Pestotnik, R.;Petrič, M.;Piilonen, L. E.;Ritter, M.;Sahoo, H.;Sakai, Y.;Sanuki, T.;Sato, Y.;Schwanda, C.;Sevior, M. E.;Shapkin, M.;Shiu, J. -G.;Sibidanov, A.;Simon, F.;Singh, J. B.;Smerkol, P.;Solovieva, E.;Stanič, S.;Starič, M.;Trabelsi, K.;Uchida, M.;Uno, S.;Urquijo, P.;Varvell, K. E.;Vorobyev, V.;Wang, C. H.;Wang, P.;Watanabe, M.;Watanabe, Y.;Williams, K. M.;Won, E.;Yamamoto, H.;Yamashita, Y.;Zhang, Z. P.;Zhilich, V.;Zupanc, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | ASYMMETRY;Environmental Molecular Sciences Laboratory;RESONANCE;SYMMETRY |
| 日期: | 2012-05-18 |
| 上傳時間: | 2026-04-23 12:26:40 (UTC+8) |
| 出版者: | American Physical Society;United States: American Physical Society (APS) |
| 摘要: | 摘要： We report measurements of branching fractions and time-dependent CP asymmetries in B0→D+D- and B0→D*±D∓ decays using a data sample that contains (772±11)×106BB pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We determine the branching fractions to be B(B0→D+D-)=(2.12±0.16±0.18)×10-4 and B(B0→D*±D∓)=(6.14±0.29±0.50)×10-4. We measure CP asymmetry parameters SD+D-=-1.06-0.14+0.21±0.08 and CD+D-=-0.43±0.16±0.05 in B0→D+D- and AD*D=+0.06±0.05±0.02, SD*D=-0.78±0.15±0.05, CD*D=-0.01±0.11±0.04, ΔSD*D=-0.13±0.15±0.04 and ΔCD*D=+0.12±0.11±0.03 in B0→D*±D∓, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than 4σ significance.
出版者： United States: American Physical Society (APS)
出版日期： 2012-05-18
出處： Physical Review. D, Particles, Fields, Gravitation and Cosmology, 2012-05, Vol.85 (9)
識別號： DOI: 10.1103/PhysRevD.85.091106 |
| 顯示於類別: | [物理學系] 期刊論文
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