Exploring CP Violation with $B_c$ Decays

Abstract

We point out that the pure ``tree'' decays $B_c^{\pm }\to D_s^{\pm }D$ are particularly well suited to extract the CKM angle $\gamma$ through amplitude relations. In contrast to conceptually similar strategies using $B^{\pm }\to K^{\pm }D$ or $B_d\to K^{\ast 0}D$ decays, the advantage of the $B_c$ approach is that the corresponding triangles have three sides of comparable length and do not involve small amplitudes. Decays of the type $B_c^{\pm }\to D^{\pm }D$ -- the $U$-spin counterparts of $B_c^{\pm }\to D_s^{\pm }D$ -- can be added to the analysis, as well as channels, where the $D_s^{\pm }$- and $D^{\pm }$-mesons are replaced by higher resonances.

9 pages, LaTeX, 3 figures, reference added

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• Using Heavy Quark Spin Symmetry in Semileptonic $B_c$ Decays
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• Constraints on the phase $\gamma$ and new physics from $B\to K\pi$ Decays
• Searching for New Physics in Non-Leptonic B Decays
• Electroweak penguin amplitudes and constraints on $\gamma$ in charmless $B\to VP$ decays

Cited by in corpus (29)

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• New, Efficient and Clean Strategies to Explore CP Violation Through Neutral B Decays
• The pure annihilation type B_c to M_2 M_3 decays in the perturbative QCD approach
• The nonleptonic decays Bc->Ds antiD0 and Bc->Ds D0 in a relativistic quark model
• Study of Bc -> BP,BV Decays with QCD Factorization
• Non-leptonic two-body decays of the Bc meson in light-front quark model and QCD factorization approach
• Charged $B$ Mesogenesis
• Probing Non-leptonic Two-body Decays of $B_c$ meson
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• Non-leptonic decays of the B_c into tensor mesons
• Gold-plated Mode of CP-Violation in Decays of B_c Meson from QCD Sum Rules
• Shedding Light on the "Dark Side" of $B_d^0$--${\bar{B}}_d^0$ Mixing through $B_d\to {\pi }^{+}{\pi }^{-}$, $K\to \pi \nu \bar{\nu }$ and $B_{d,s}\to {\mu }^{+}{\mu }^{-}$
• Hadron physics potential of future high-luminosity B-factories at the Upsilon(5S) and above
• The double charm decays of $B_c$ Meson in the Perturbative QCD Approach
• Possibility of extracting the weak phase $\gamma$ from ${\Lambda }_b\to \Lambda D^0$ decays
• Determination of the angle $\gamma$ from nonleptonic $B_c\to D_s{D}^0$ decays
• Present and Future CP Measurements
• Search for $B_c^{+}$ decays to two charm mesons
• Weak phases from topological-amplitude parametrization
• Branching ratio and CP violation of $B_c\to DK$ decays in the perturbative QCD approach
• Determining the CKM angle gamma with B_c decays
• CP violation in non-leptonic $B_c$ decays to excited final states
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• Weak phase information from the color suppressed B_d^0 -> D^{*0} K^{*0} modes
• Exploring CP Violation through B Decays
• Possibility of Measuring the CP-Violation gamma-parameter in Decays of Xi_bc Baryons