Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( *) ±D ∓ decays

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105438

Title:	Measurements of branching fractions and time-dependent CP violating asymmetries in B0→D( *) ±D ∓ decays
Authors:	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.
Contributors:	理學院物理學系
Keywords:	ASYMMETRY;Environmental Molecular Sciences Laboratory;RESONANCE;SYMMETRY
Date:	2012-05-18
Issue Date:	2026-04-23 12:26:40 (UTC+8)
Publisher:	American Physical Society;United States: American Physical Society (APS)
Abstract:	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 ADD=+0.06±0.05±0.02, SDD=-0.78±0.15±0.05, CDD=-0.01±0.11±0.04, ΔSDD=-0.13±0.15±0.04 and ΔCDD=+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
Appears in Collections:	[Department of Physics] journal & Dissertation

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