Enhancement of CP Violation in B^+- to K_i^+- D^0 By Resonant Effects

Abstract

Resonance width effects in charged $B$ decays to neutral $D$ mesons and excited kaon states $K_i$ around 1400 MeV are shown to lead to large calculable final state phases. $CP$ asymmetries are defined for any charged $B$ decay to three pseudoscalar mesons involving intermediate overlapping resonance states. Asymmetries up to about 10$\%$ are found in $B^{+}\to K_i^{+}{D}^0\to (K\pi {)}^{+}{D}^0$. Decay distributions can be used to determine the weak phase $\gamma$ of the Cabibbo-Kobayashi-Maskawa (CKM) matrix. No separation of the contributions from individual resonances is required.

11 pages

Cited by in corpus (21)

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• Feasibility study of model-independent approach to phi_3 measurement using Dalitz plot analysis
• Measurement of phi_3 with Dalitz plot analysis of B+ -> D(*)K(*)+ decay
• |V_ub| from UTangles and B->pi l nu
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• Measurements of the Branching fractions for $B_{(}s)->D_{(}s)\pi \pi \pi$ and ${\Lambda }_b^0->{\Lambda }_c^{+}\pi \pi \pi$
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• Determining gamma using B->D^**K
• Search for b --> u Transitions in B^{+-} --> [K^{-+} pi^{+-} pi0]_D K^{+-} Decays
• Rescattering effects in B_{u,d,s}(bar) to D P, D(bar) P decays
• Measurement of the Branching Fraction and Polarization for the Decay B- to D*0 K*-
• First observation of the decays ${\bar{B}}_{(s)}^0\to D_s^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ and ${\bar{B}}_s^0\to D_{s1}(2536{)}^{+}{\pi }^{-}$
• Time-dependent Dalitz plot analysis of B0 -> D-(+) K0 Pi+(-) decays
• Implications of Bbar to D0 h0 Decays on Bbar to D Kbar, Dbar Kbar Decays
• Measurement of the B- -> D0 K*- branching fraction
• First observation of the decays B0bar -->D+ K- pi+ pi- and B- --> D0 K- pi+ pi-
• A variety of CP violating B decays
• Test for exotic isoscalar resonance dominating $D^0\to {\pi }^{+}{\pi }^{-}{\pi }^0$ decays
• Search for New Physics in the Semileptonic D_{l4} Decays, D->K πl ν