Measurements of CP-Violating Asymmetries in the Decay B0 -> K+ K- K0

B Aubert; Pablo Del Amo Sanchez; Christopher Hawkes; Alan Watson

doi:10.1103/PhysRevLett.99.161802

Measurements of CP-Violating Asymmetries in the Decay B0 -> K+ K- K0

B Aubert, Pablo Del Amo Sanchez, Christopher Hawkes, Alan Watson

Physics and Astronomy

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56 Citations (Scopus)

Abstract

We analyze the decay B0-->K+K-K0 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-K0 events, we find ACP=-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 ACP and beta eff separately for decays to phi(1020)K0, f0(980)K0, and K+K-K0 with mK+K- > 1.1 GeV/c2.

Original language	English
Pages (from-to)	161802
Number of pages	1
Journal	Physical Review Letters
Volume	99
Early online date	1 Oct 2007
DOIs	https://doi.org/10.1103/PhysRevLett.99.161802
Publication status	Published - 1 Oct 2007

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title = "Measurements of CP-Violating Asymmetries in the Decay B0 -> K+ K- K0",

abstract = "We analyze the decay B0-->K+K-K0 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-K0 events, we find ACP=-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 ACP and beta eff separately for decays to phi(1020)K0, f0(980)K0, and K+K-K0 with mK+K- > 1.1 GeV/c2.",

author = "B Aubert and {Del Amo Sanchez}, Pablo and Christopher Hawkes and Alan Watson",

year = "2007",

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doi = "10.1103/PhysRevLett.99.161802",

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T1 - Measurements of CP-Violating Asymmetries in the Decay B0 -> K+ K- K0

AU - Aubert, B

AU - Del Amo Sanchez, Pablo

AU - Hawkes, Christopher

AU - Watson, Alan

PY - 2007/10/1

Y1 - 2007/10/1

N2 - We analyze the decay B0-->K+K-K0 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-K0 events, we find ACP=-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 ACP and beta eff separately for decays to phi(1020)K0, f0(980)K0, and K+K-K0 with mK+K- > 1.1 GeV/c2.

AB - We analyze the decay B0-->K+K-K0 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-K0 events, we find ACP=-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 ACP and beta eff separately for decays to phi(1020)K0, f0(980)K0, and K+K-K0 with mK+K- > 1.1 GeV/c2.

U2 - 10.1103/PhysRevLett.99.161802

DO - 10.1103/PhysRevLett.99.161802

M3 - Article

C2 - 17995239

SN - 1079-7114

VL - 99

SP - 161802

JO - Physical Review Letters

JF - Physical Review Letters

ER -

Measurements of CP-Violating Asymmetries in the Decay B0 -> K+ K- K0

Abstract

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