2007/01/25 by Robert Fleischer, Fleischer, Robert
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/0701216
4 pages, 2 figures, talk given at the 4th International Workshop on the CKM Unitarity Triangle (CKM2006), 12-16 December 2006, Nagoya, Japan, to appear in the proceedings (KEK Report)
arxiv created 2007/01/25 · openalex publication_date 2007/01/25 · arxiv updated 2009/12/01 · openalex created_date 2020/05/13 · openalex updated_date 2026/07/28
We give an overview of various determinations of γ/ϕ3 with the help of Bs decays into charmed final states, distinguishing between transitions with tree and penguin contributions and pure tree decays. In the corresponding strategies, the U-spin flavour symmetry of strong interactions provides a very useful tool, and offers interesting "by-producs" for the B-physics programme at the LHC, including the control of the penguin uncertainties in the determinations of the B0d- B0d and B0s-- B0s mixing phases ϕd and ϕs from Bd→ J/ψKS and Bs→ J/ψϕ, respectively, and an alternative extraction of the latter phase through Bs→ Ds+Ds-. Finally, we point out that the cleanest determinations of the mixing phases ϕs and ϕd are offered by the pure tree decays Bs→ D_± KS(L) and Bd→ D_±π0, D_±ρ0, ..., respectively, which are very interesting for the searches of new physics.