Fourth Generation CP Violation Effect on B -> K pi, phi K and rho K in NLO PQCD

Abstract

We study the effect from a sequential fourth generation quark on penguin-dominated two-body nonleptonic B meson decays in the next-to-leading order perturbative QCD formalism. With an enhancement of the color-suppressed tree amplitude and possibility of a new CP phase in the electroweak penguin, we can account better for A_{CP}(B^0 -> K^+ pi^-)-A_{CP}(B^+ -> K^+ pi^0). Taking |V_{t's}V_{t'b}| \sim 0.02 with phase just below 90^\circ, which are consistent with the b -> s l^+ l^- rate and the B_s mixing parameter Δm_{B_s}, we find a downward shift in the mixing-induced CP asymmetries of B^0 -> K_S pi^0 and phi K_S. The predicted behavior for B^0 -> rho^0 K_S is opposite.

4 pages, 6 figures; version to appear in Phys. Rev. Lett

References in corpus (3)

• Penguin-dominated B -> PV decays in NLO perturbative QCD
• Four Generation CP Violation in B -> phi K^0, pi^0 K^0, eta' K^0 and Hadronic Uncertainties
• Has New Physics already been seen in B_d meson decays?

Cited by in corpus (20)

• Large Time-dependent CP Violation in B_s^0 System and Finite D^0-D^0bar Mass Difference in Four Generation Standard Mode
• Patterns of Flavour Violation in the Presence of a Fourth Generation of Quarks and Leptons
• Source of CP Violation for the Baryon Asymmetry of the Universe
• Direct CP violation in ${\Lambda }_b$ decays
• Resolving B-CP Puzzles in QCD Factorization
• Glauber gluons in spectator amplitudes for $B\to \pi M$ decays
• Searching for New Physics in b to s Hadronic Penguin Decays
• Rescattering effects in charmless B_{u,d,s} to P P decays
• $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ Forward-backward Asymmetry and New Physics
• An A_5 Model of Four Lepton Generations
• Charm Physics - A Field Full with Challenges and Opportunities
• Extended Friedberg Lee hidden symmetries, quark masses and CP-violation with four generations
• Consequences of a Pati-Salam unification of the electroweak-scale active ${\nu }_R$ model
• Signature of new physics in B -> phi pi decay
• The Effects of Fourth Generation on the double Lepton Polarization in B \rar K \ell^+ \ell^- decay
• Search for TeV Scale Physics in Heavy Flavour Decays
• Exclusive $B \rar ρ\ell^+ \ell^-$ Decay in the Standard Model with Fourth--Generation
• Analysis of the B --> π\ell^+ \ell^- Decay in the Standard Model with Fourth Generation
• The B ---> π K puzzle and the Bulk Randall-Sundurm model
• Analysis of Various Polarization Asymmetries In The Inclusive $b\to s{\ell }^{+}{\ell }^{-}$ Decay In The Fourth-Generation Standard Model