Direct CP Violation Searches in Charmless Hadronic B Meson Decays

Abstract

We search for direct CP violation in charmless hadronic B decays observed in a sample of about 22.7 million $B\bar{B}$ pairs collected with the BABAR detector at the PEP-II asymmetric-energy $e^{+}{e}^{-}$ collider. We measure the following charge asymmetries: ${\mathcal{A}}_{CP}(B^{\pm }\to {\eta }^{\prime }{K}^{\pm })=-0.11\pm 0.11\pm 0.02$, ${\mathcal{A}}_{CP}(B^{\pm }\to \omega {\pi }^{\pm })=-0.01_{-0.31}^{+0.29}\pm 0.03$, ${\mathcal{A}}_{CP}(B^{\pm }\to \varphi K^{\pm })=-0.05\pm 0.20\pm 0.03$, ${\mathcal{A}}_{CP}(B^{\pm }\to \varphi K^{\ast \pm })=-0.43_{-0.30}^{+0.36}\pm 0.06$, and ${\mathcal{A}}_{CP}(B^0\to \varphi K^{\ast 0})=0.00\pm 0.27\pm 0.03$.

8 pages, 2 postscript figues, submitted to Phys. Rev. D (rapid communications)

References in corpus (11)

• Observation of Large CP Violation in the Neutral B Meson System
• Observation of CP violation in the B^0 meson system
• Observation of Direct CP Violation in K_{S,L} to ππDecays
• A new measurement of direct CP violation in two pion decays of the neutral kaon
• CP-Violating Asymmetries in Charmless Non-Leptonic Decays $B\to PP,PV,VV$ in the Factorization Approach
• Measurement of Charge Asymmetries in Charmless Hadronic in B Meson Decays
• Measurement of Branching Fractions and Search for CP-Violating Charge Asymmetries in Charmless Two-Body B Decays into Pions and Kaons
• Measurements of the branching fractions of exclusive charmless B meson decays with ${\eta }^{p}rime$ or $\omega$ mesons
• Measurement of the decays B-->phi K and B-->phi K^*
• Prospects for Direct CP Violaton in Exclusive and Inclusive Charmless B decays
• Constraining CP Violating Phases of the MSSM

Cited by in corpus (13)

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• Branching Fractions and CP Asymmetries in B0 -> pi0pi0, B+ -> pi+pi0 and B+ -> K+pi0 Decays and Isospin Analysis of the B -> pipi System
• Measurements of CP-violating Asymmetries and Branching Fractions in B Meson Decays to eta' K
• Simultaneous solution to B --> phi K CP Asymmetry and B --> eta(prime) K, eta K^* branching ratio anomalies from R-parity violation
• Testing QCD factorisation and charming penguins in charmless $\mathbf{B}\to \mathbf{PV}$
• Observation of the Decay $B^{\pm }\to {\pi }^{\pm }{\pi }^0$, Study of $B^{\pm }\to K^{\pm }{\pi }^0$, and Search for $B^0\to {\pi }^0{\pi }^0$
• $B_s-\overline{B_s}$ mixing, B decays and R-parity violating supersymmetry
• Observing Direct CP Violation in Untagged B-Meson Decays
• Measurements of branching fractions in B -> phi K and B -> phi pi and search for direct CP violation in B+/- -> phi K+/-
• Does CPT violation affect the B_d meson life times and decay asymmetries?
• CP asymmetries in penguin-induced B decays in general left-right models