Measurements of CP-Violating Asymmetries in the Decay B0→K+K-K0
Abstract
We analyze the decay B0→K+K-K0 using 383×106 BB¯ events collected by the BABAR detector at SLAC to extract CP violation parameter values over the Dalitz plot. Combining all K+K-K0 events, we find ACP=-0.015±0.077±0.053 and βeff=0.352±0.076±0.026rad, corresponding to a CP violation significance of 4.8σ. A second solution near π/2-βeff is disfavored with a significance of 4.5σ. We also report ACP and βeff separately for decays to ϕ(1020)K0, f0(980)K0, and K+K-K0 with mK+K->1.1GeV/c2.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 2007
- DOI:
- 10.1103/PhysRevLett.99.161802
- arXiv:
- arXiv:0706.3885
- Bibcode:
- 2007PhRvL..99p1802A
- Keywords:
-
- 13.25.Hw;
- 11.30.Er;
- 12.15.Hh;
- Decays of bottom mesons;
- Charge conjugation parity time reversal and other discrete symmetries;
- Determination of Kobayashi-Maskawa matrix elements;
- High Energy Physics - Experiment
- E-Print:
- 7 pages, 4 postscript figures