Lhcb Strategies for Γ from B → Dk
نویسنده
چکیده
One of the most promising ways to determine the angle γ of the CKM unitarity triangle is through measurement of the tree level processes B → DK. The LHCb collaboration has studied the potential of these decays employing the Atwood-Dunietz-Soni (ADS) and Dalitz methods, making use of a large sample of simulated data. For each method the expected sensitivities to the angle γ are presented in this report.
منابع مشابه
Towards Precision Measurements of Γ: Cleo-c’s Pivotal Role
Strategies that utilise the interference effects within B±→ DK± decays hold great potential for improving our sensitivity to the CKM angle γ. However, in order to exploit fully this potential, detailed knowledge of the D meson decay structure is required. This essential information can be obtained from the quantum correlated ψ(3770) datasets at CLEO-c. Results of such analyses involving the dec...
متن کاملConstraints on the unitarity triangle angle γ from Dalitz plot analysis of B0 → DKþπ− decays
The first study is presented of CP violation with an amplitude analysis of the Dalitz plot of B → DKþπ− decays, with D → Kþπ−, KþK−, and πþπ−. The analysis is based on a data sample corresponding to 3.0 fb−1 of pp collisions collected with the LHCb detector. No significant CP violation effect is seen, and constraints are placed on the angle γ of the unitarity triangle formed from elements of th...
متن کاملγ measurements at LHCb
The LHCb collaboration has studied various promising ways to determine the Unitarity Triangle angle γ. Three complementary methods will be considered. The potential of the B → DK(∗) decays has been studied by employing the combined Gronau-London-Wyler (GLW) and the Atwood-Dunietz-Soni (ADS) methods, making use of a large sample of simulated data. γ can also be extracted with a time-dependent an...
متن کاملMeasurement of CP violation and constraints on the CKM angle γ in B±→DK± with D→K0Sπ+π− decays
A model-dependent amplitude analysis of B± →DK± with D→K0 Sπ+π− decays is performed using proton–proton collision data, corresponding to an integrated luminosity of 1 fb−1, recorded by LHCb at a centre-of-mass energy of 7 TeV in 2011. Values of the CP violation observables x± and y±, which are sensitive to the CKM angle γ, are measured to be x− =+0.027 ± 0.044+0.010 −0.008 ± 0.001, y− =+0.013 ±...
متن کاملA new method for extracting the weak phase γ from B →
A new method to extract the weak phase γ is suggested by exploiting B → DK(∗) decay modes that are not Cabibbo suppressed, using the isospin relations, and ignoring the annihilation diagram as usual. Assuming 3× 108BB̄ pair at B factories, one can determine γ with 3− σ accuracy for 80 ∼ γ ∼ 150 using B → DK modes and for 50 ∼ γ ∼ 170 using B → DK∗ modes. ∗e-mail : [email protected] †e-mai...
متن کامل