Measurement of branching fractions and mass spectra of B -> K pi pi gamma (vol 98, art no 211804, 2007)

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Improved measurement of the CKM angle gamma in B--/+->(DK(*)-/+)-K-(*) decays with a Dalitz plot analysis of D decays to K-S(0)pi(+)pi(-) and (KSK+K-)-K-0

We report on an improved measurement of the Cabibbo-Kobayashi-Maskawa CP-violating phase gamma through a Dalitz plot analysis of neutral D meson decays to K-S(0)pi(+)pi(-) and (KSK+K-)-K-0 produced in the processes B--/+-> DK -/+, B--/+->(DK -/+)-K-* with D-*-> D pi(0), D gamma, and B--/+-> DK*-/+ with K-*-/+-> K-S(0)pi(-/+). Using a sample of 383x10(6) B (B) over bar pairs collected by the BABAR detector, we measure gamma=(76 +/- 22 +/- 5 +/- 5)degrees (mod 180 degrees), where the first error is statistical, the second is the experimental systematic uncertainty, and the third reflects the uncertainty on the description of the Dalitz plot distributions. The corresponding 2-standard-deviation region is 29 degrees <gamma < 122 degrees. This result has a significance of direct CP violation (gamma not equal 0) of 3.0 standard deviations

Search for CPT and lorentz violation in B-0-(B)over-bar(0) oscillations with dilepton events

We report results of a search for CPT and Lorentz violation in B-0-(B) over bar (0) oscillations using inclusive dilepton events from 232x10(6) Upsilon(4S)-> B (B) over bar decays recorded by the BABAR detector at the PEP-II B Factory at SLAC. We find 2.8 sigma significance, compatible with no signal, for variations in the complex CPT violation parameter z at the Earth's sidereal frequency and extract values for the quantities Delta a(mu) in the general Lorentz-violating standard-model extension. The spectral powers for variations in z over the frequency range 0.26 yr(-1) to 2.1 solar day(-1) are also compatible with no signal

Measurements of e+e-→K+K-η, K+K-π0, and Ks0K±π∓ cross sections using initial state radiation events

This paper reports measurements of processes: e+e-→γKS0K±π∓, e+e-→γK+K-π0, e+e-→γϕη, and e+e-→γϕπ0. The initial-state radiated photon allows to cover the hadronic final state in the energy range from thresholds up to ≈4.6  GeV. The overall size of the data sample analyzed is 232  fb-1, collected by the BABAR detector running at the PEP-II e+e- storage ring. From the Dalitz plot analysis of the KS0K±π∓ final state, moduli, and relative phase of the isoscalar and the isovector components of the e+e-→KK*(892) cross section are determined. Parameters of ϕ and ρ recurrences are also measured, using a global fitting procedure which exploits the interconnection among amplitudes, moduli, and phases of the e+e-→KS0K±π∓, K+K-π0, ϕη final states. The cross section for the OZI-forbidden process e+e-→ϕπ0, and the J/ψ branching fractions to KK*(892) and K+K-η are also measured