CP violation in B meson decays

Abstract

Recent CP asymmetry measurements in tree-dominated processes, $B^0\to {\pi }^{+}{\pi }^{-},{\rho }^{+}{\rho }^{-},{\rho }^{\pm }{\pi }^{\mp },B^{+}\to D{K}^{+}$, and in penguin-dominated decays, $B\to {\pi }^0{K}_S,{\eta }^{\prime }{K}_S,\varphi K_S$, are interpreted in the framework of the Kobayashi-Maskawa (KM) mechanism of CP violation. The KM phase emerges as the dominant source of CP violation in tree-dominated decays, which are beginning to constrain the unitarity triangle beyond other constraints. Improving precision of CP asymmetry measurements in penguin-dominated decays may indicate the need for new physics.

Talk presented at the Sixth International Conference on Hyperons, Charm and Beauty Hadrons, IIT, Chicago, June 27--July 3 2004

References in corpus (9)

• Charmless $B\to PP$ decays using flavor SU(3) symmetry
• Observation of Large CP Violation and Evidence for Direct CP Violation in B0-->pi+pi- Decays
• Comment on extracting alpha from B -> rho rho
• Correlated bounds on CP asymmetries in $B^0\to {\eta }^{\prime }{K}_S$
• Interpreting the time-dependent CP asymmetry in $B^0\to {\pi }^0{K}_S$
• Using untagged B^0 -> D K_S to determine gamma
• Observation of the Decay B0 => rho+ rho- and Measurement of the Branching Fraction and Polarization
• Implications of CP Asymmetries in $B\to {\pi }^{+}{\pi }^{-}$
• Measurement of the branching fractions and CP-asymmetry of B^- -> D^0_(CP) K^- decays with the BaBar detector

Cited by in corpus (3)

• Flavor Physics in the Quark Sector
• Measurement of the branching fraction and time-dependent $CP$ asymmetry for $B^0\to J/\psi {\pi }^0$ decays
• On the difference of time-integrated $CP$ asymmetries in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays: unparticle physics contribution