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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, Martínez-Vidal, Fernando, Milanés, Diego A., Oyanguren, Arantza, Chen, Shaomin, Babar Collaboration, Aubert, B.
Palabras clave : β decays
[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
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: et al.
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ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.99.161802
Citación : Physical Review Letters 99(16): 161802 (2007)
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