Charmless decays B->pipi, piK and KK in broken SU(3)symmetry

Abstract

Charmless B decay modes $B\to \pi \pi ,\pi K$ and $KK$ aresystematically investigated with and without flavor SU(3) symmetry. Independent analyses on $\pi \pi$ and $\pi K$ modes both favor a large ratio between color-suppressed tree ($C$) and tree ($T)$ diagram, which suggests that they are more likely to originate from long distance effects. The sizes of QCD penguin diagrams extracted individually from $\pi \pi$, $\pi K$ and $KK$ modes are found to follow a pattern of SU(3) breaking in agreement with the naive factorization estimates. Global fits to these modes are done under various scenarios of SU(3)relations. The results show good determinations of weak phase $\gamma$ in consistency with the Standard Model (SM), but a large electro-weak penguin $(P_{\tmop{EW}})$ relative to $T+C$ with a large relative strong phase are favored, which requires an big enhancement of color suppressed electro-weak penguin ($P_{\tmop{EW}}^C$) compatible in size but destructively interfering with $P_{\tmop{EW}}$ within the SM, or implies new physics. Possibility of sizable contributions from nonfactorizable diagrams such as $W$-exchange ($E$), annihilation($A$) and penguin-annihilation diagrams($P_A$) are investigated. The implications to the branching ratios and CP violations in $KK$modes are discussed.

27 pages, 9 figures, reference added, to appear in Phy.Rev.D

References in corpus (16)

• CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories
• Final State Interactions in Hadronic B Decays
• The 2004 UTfit Collaboration Report on the Status of the Unitarity Triangle in the Standard Model
• Direct CP Violating Asymmetry in B0 -> K+pi- Decays
• Non-factorizable Contributions to $B\to \pi \pi$ Decays
• Solution to the B -> pi K Puzzle in a Flavor-Changing Z' Model
• Improved Measurement of CP Asymmetries in B0 -> (ccbar)K0(*) Decays
• The B -> pi K Puzzle and New Physics
• Improved Measurement of CP-Violation Parameters sin(2phi1) and |lambda|, B Meson Lifetimes, and B0-B0bar Mixing Parameter Delta m_d
• Large electroweak penguin contribution in B -> K pi and pi pi decay modes
• Weak phases from the $B\to \pi \pi$, $K\pi$ decays
• Implications of Charmless B Decays with Large Direct CP Violation
• Methods for Measuring New-Physics Parameters in B Decays
• A New Method for Determining gamma from B-> pi pi Decays
• Bd^0(t)->pi^+pi^- and Bs^0(t)-> K^+ K^- Decays: A Tool to Measure New-Physics Parameters
• CP Asymmetry in ${\bar{B}}^0\to K^{-}{\pi }^{+}$ from SUSY Flavor Changing Interactions

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