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| 題名: | First Observation of CP Violation in B ¯ 0 → DCP (∗) h0 Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data |
| 作者: | 陳鎰鋒;Abdesselam, A.;Adachi, I.;Adametz, A.;Albert, J.;Andreassen, R.;Arinstein, K.;Banerjee, Sw.;Bard, D. J.;Beaulieu, A.;Bettoni, D.;Bhuyan, B.;Bloom, P. C.;Bomben, M.;Bonvicini, G.;Calcaterra, A.;Cenci, R.;Chang, P.;Chauveau, J.;Cheaib, R.;Chen, C.;Cho, K.;Dittrich, S.;Ebert, M.;Eigen, G.;Eisner, A. M.;Ernst, J. A.;Feindt, M.;Field, R. C.;Fritsch, M.;Gary, J. W.;Golubev, V. B.;Graham, M. T.;Griessinger, K.;Innes, W. R.;Ishikawa, A.;Itoh, R.;Jessop, C. P.;Julius, T.;Kim, K. T.;Kim, Y. J.;Koch, H.;Križan, P.;Krokovny, P.;Kwon, Y.-J.;Lange, D. J.;Lee, D. H.;Lees, J. P.;Lewczuk, M. J.;Pegna, D. Lopes;Luitz, S.;Lukin, P.;Lutz, A. M.;Lynch, G.;MacFarlane, D. B.;Malaescu, B.;Manoni, E.;Moll, A.;Monge, M. R.;Moon, H. K.;Nakazawa, H.;Olsen, J.;Ongmongkolkul, P.;Pal, B.;Patteri, P.;Payne, D. J.;Pesántez, L.;Pestotnik, R.;Piredda, G.;Playfer, S.;Randle-Conde, A.;Roberts, D. A.;Robertson, S. H.;Roodman, A.;Rossi, A.;Sandilya, S.;Schindler, R. H.;Schubert, K. R.;Senyo, K.;Seon, O.;Serednyakov, S. I.;Shapkin, M.;Shebalin, V.;Skovpen, Yu. I.;Snyder, A.;Sun, L.;Todyshev, K. Yu.;Toki, W. H.;Uchida, M.;Uno, S.;Usov, Y.;Uwer, U.;Vinokurova, A.;Vorobyev, V.;Waldi, R.;Watanabe, Y.;Wulsin, H. W.;Yamaoka, J.;Zhang, Z. P.;Zhilich, V.;Zupanc, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | 11.30.Er Charge conjugation;12.15.Hh Determination of Cabibbo-Kobayashi & Maskawa (CKM) matrix elements;13.25.Hw Decays of bottom meson;13.25.Hw Decays of bottom mesons;11.30.Er Charge conjugation;parity;time reversal and other discrete symmetries;12.15.Hh Determination of Cabibbo-Kobayashi & Maskawa (CKM) matrix elements;[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex];Asymmetric energy;BaBar detector;Belle detectors;Belle experiments;CP asymmetries;Standard deviation;Time-dependent analysis;Time-dependent CP asymmetry;Bosons;Hadrons;High energy physics;Bosons;Hadrons;High energy physics;Asymmetric energy;BaBar detector;Belle detectors;Belle experiments;CP asymmetries;Standard deviation;Time-dependent analysis;Time-dependent CP asymmetry;ddc:530;detector;physics;Experiments;FOS: Physical sciences;F�sica de part�cules;HEP;BaBar;PACS: 13.25.Hw, 11.30.Er, 12.15.Hh;High Energy Physics - Experiment;High Energy Physics - Experiment (hep-ex);info:eu-repo/classification/ddc/530;parity;Particle physics;Physics;Physics and Astronomy (all);time reversal and other discrete symmetrie |
| 日期: | 2015-09-16 |
| 上傳時間: | 2026-04-23 11:56:02 (UTC+8) |
| 出版者: | American Physical Society;American Physical Society (APS) |
| 摘要: | 摘要： We report a measurement of the time-dependent CP asymmetry of B¯0→DCP(∗)h0 decays, where the light neutral hadron h0 is a π0, η, or ω meson, and the neutral D meson is reconstructed in the CP eigenstates K+K-, KS0π0, or KS0ω. The measurement is performed combining the final data samples collected at the (4S) resonance by the BABAR and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471±3)×106BB¯ pairs recorded by the BABAR detector and (772±11)×106BB¯ pairs recorded by the Belle detector. We measure the CP asymmetry parameters -ηfS=+0.66±0.10(stat)±0.06(syst) and C=-0.02±0.07(stat)±0.03(syst). These results correspond to the first observation of CP violation in B¯0→DCP(∗)h0 decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
出版者： American Physical Society (APS)
出版日期： 2015-09-16
出處： Physical Review Letters, 2015-09, Vol.115 (12)
資源來源： American Physical Society Journals
識別號： ISSN: 0031-9007
識別號： EISSN: 1079-7114
識別號： DOI: 10.48550/arxiv.1505.04147
識別號： DOI: 10.25916/sut.26217608.v1
識別號： DOI: 10.1103/physrevlett.115.121604
識別號： DOI: 10.25916/sut.26217608.v2
識別號： DOI: 10.25916/sut.26217608 |
| 顯示於類別: | [物理學系] 期刊論文
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