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Título: | Measurements of CP-Violating asymmetries in the decay B-0 -> K+ K- K-0 |
Autor: | Garra Tico, J.; Grauges, E.; Davier, Michel; Höcker, Andreas; Azzolini, Virginia; López-March, Neus CSIC; Martínez-Vidal, Fernando CSIC ORCID; Milanés, Diego A. CSIC ORCID; Oyanguren, Arantza CSIC ORCID; Chen, Shaomin; Babar Collaboration; Aubert, B. | Palabras clave: | β decays Physics [PACS] Hadronic decays of bottom mesons [PACS] Charge conjugation, parity, time reversal, and other discrete symmetries in particles and fields [PACS] Determination of electroweak Kobayashi–Maskawa matrix elements |
Fecha de publicación: | 19-oct-2007 | Editor: | American Physical Society | Citación: | Physical Review Letters 99(16): 161802 (2007) | Resumen: | We analyze the decay B-0 -> K+ K- K-0 using 383 x 10(6) BB[over-bar] events collected by the BABAR detector at SLAC to extract CP violation parameter values over the Dalitz plot. Combining all K+ K- K-0 events, we find A(CP) = -0.015 ± 0.077 ± 0.053 and β(eff) = 0.352 ± 0.076 ± 0.026 rad, corresponding to a CP violation significance of 4.8σ. A second solution near π/2-β(eff) is disfavored with a significance of 4.5 σ. We also report A(CP) and β(eff) separately for decays to Φ(1020)K-0, f(0)(980)K-0, and K+ K- K-0 with m(K+)(K-) > 1.1 GeV/c(2). | Descripción: | 7 pages, 3 figures.-- PACS nrs.: 13.25.Hw; 11.30.Er; 12.15.Hh.-- ISI Article Identifier: 000250296000017.-- ArXiv pre-print available at: http://arxiv.org/abs/0706.3885.-- et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.99.161802 | URI: | http://hdl.handle.net/10261/9890 | DOI: | 10.1103/PhysRevLett.99.161802 | ISSN: | 0031-9007 |
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