Using untagged B^0 -> D K_S to determine gamma

Abstract

It is shown that the weak phase gamma=arg(-V_{ud}V^*_{ub}V_{cb}V_{cd}^*) can be determined using only untagged decays B/Bbar--> D K_S. In order to reduce the uncertainty in gamma, we suggest combining information from B^{+-}--> DK^{+-} and from untagged B^0 decays, where the D meson is observed in common decay modes. Theoretical assumptions, which may further reduce the statistical error, are also discussed.

18 pages, same as published version

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Cited by in corpus (25)

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• New Physics at a Super Flavor Factory
• The Effect of $D-\bar{D}$ Mixing on the Measurement of $\gamma$ in $B\to DK$ Decays
• Observation of the decay B0 -> D0bar K+ K- and evidence for Bs -> D0bar K+ K-
• A Method to Measure ${\varphi }_1$ Using ${\bar{B}}^0\to D{h}^0$ With Multibody $D$ Decay
• Rescattering Contributions to rare B-Meson Decays
• Enhanced effects on extracting γfrom untagged B^0 and B_s decays
• A Method to Measure cos(2beta) Using Time-Dependent Dalitz Plot Analysis of B0 -> D_CP pi+ pi-
• Determining gamma using B->D^**K
• Observation of the decay $B_s^0\to {\bar{D}}^0\varphi$
• Observation of the decay $B_s^0\to {\overline{D}}^0{K}^{+}{K}^{-}$
• Observation of $B_s^0\to {\overline{D}}^{\ast 0}\varphi$ and search for $B^0\to {\overline{D}}^0\varphi$ decays
• Branching Fraction Measurements of the Color-Suppressed Decays B0bar to D(*)0 pi0, D(*)0 eta, D(*)0 omega, and D(*)0 eta_prime and Measurement of the Polarization in the Decay B0bar to D*0 omega
• Electroweak effects in the extraction of the CKM angle $\gamma$ from $B\to D\pi$ decays
• The case for measuring gamma precisely
• Study of CKM angle $\gamma$ sensitivity using flavor untagged $B_s^0\to {\tilde{D}}^{(\ast )0}\varphi$ decays
• Observation of $B_s^0\to {\bar{D}}^0{K}_S^0$ and evidence for $B_s^0\to {\bar{D}}^{\ast 0}{K}_S^0$ decays
• Quark mixing and CP violation - the CKM matrix
• Resonant contributions to three-body $B_{(s)}\to [D^{(\ast )},{\bar{D}}^{(\ast )}]K^{+}{K}^{-}$ decays in the perturbative QCD approach
• CP violation in beauty decays
• CP violation in B meson decays
• Extracting the unitarity angle gamma in Bs to D0 h0, D0bar h0 Decays
• A method for model-independent measurement of the CKM angle $\beta$ via time-dependent analysis of the $B^0\to D{\pi }^{+}{\pi }^{-}$, $D\to K_S^0{\pi }^{+}{\pi }^{-}$ decays
• Visualisation of $CP$-violation effects in decay-time-dependent analyses of multibody $B$-meson decays