We analyze the decay B-0 -> K+ K- K-0 using 383 x 10(6) BB 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 beta(eff) = 0.352 +/- 0.076 +/- 0.026 rad, corresponding to a CP violation significance of 4.8 sigma. A second solution near pi/2-beta(eff) is disfavored with a significance of 4.5 sigma. We also report A(CP) and beta(eff) separately for decays to phi(1020)K-0, f(0)(980)K-0, and K+ K- K-0 with m(K)(K)(+)(-) > 1.1 GeV/c(2).

We analyze the decay B-0 -> K+ K- K-0 using 383 x 10(6) BB 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 beta(eff) = 0.352 +/- 0.076 +/- 0.026 rad, corresponding to a CP violation significance of 4.8 sigma. A second solution near pi/2-beta(eff) is disfavored with a significance of 4.5 sigma. We also report A(CP) and beta(eff) separately for decays to phi(1020)K-0, f(0)(980)K-0, and K+ K- K-0 with m(K)(K)(+)(-) > 1.1 GeV/c(2).

Measurements of CP-Violating asymmetries in the decay B-0 ->(K+K-K0)

Baracchini E;Ferroni F;
2007

Abstract

We analyze the decay B-0 -> K+ K- K-0 using 383 x 10(6) BB 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 beta(eff) = 0.352 +/- 0.076 +/- 0.026 rad, corresponding to a CP violation significance of 4.8 sigma. A second solution near pi/2-beta(eff) is disfavored with a significance of 4.5 sigma. We also report A(CP) and beta(eff) separately for decays to phi(1020)K-0, f(0)(980)K-0, and K+ K- K-0 with m(K)(K)(+)(-) > 1.1 GeV/c(2).
We analyze the decay B-0 -> K+ K- K-0 using 383 x 10(6) BB 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 beta(eff) = 0.352 +/- 0.076 +/- 0.026 rad, corresponding to a CP violation significance of 4.8 sigma. A second solution near pi/2-beta(eff) is disfavored with a significance of 4.5 sigma. We also report A(CP) and beta(eff) separately for decays to phi(1020)K-0, f(0)(980)K-0, and K+ K- K-0 with m(K)(K)(+)(-) > 1.1 GeV/c(2).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12571/1319
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