Measuring CP Violation and Testing Factorization
نویسنده
چکیده
We show that the CP-violating phases β and β ′ can respectively be determined from the time-dependent measurements of B d → D * ± D ∓ and B s → D * ± s D ∓ s decays, whose final states are non-CP eigenstates. The penguin contributions to the mixing-induced interference quantities are expected to be about 4% or smaller. We also point out two observables of O(1), which are pure functions of decay constants and form-factors, for a clean test of the factorization hypothesis in neutral-B decays into two heavy charmed mesons.
منابع مشابه
Perspectives for Direct CP Violation Tests in Hyperon Decays
We discuss the perspectives of measuring direct CP violation parameters in hyperon decays by measurements with proton and/or antiproton beams, to be carried out at various facilities, and in particular we propose new experiments at the Tevatron and at the LHC.
متن کاملCP Violation in B Decays within QCD Factorization
We analyze the extraction of weak phases from CP violation in B → π+π− decays. By combining the information on mixing induced CP violation in B → π+π−, namely Sππ, with the precision observable sin 2β obtained from the “gold-plated”mode B → ψKS, we propose the determination of the unitarity triangle. We also discuss alternative ways to analyze Sππ which can be useful if new physics affects Bd–B̄...
متن کاملNon-leptonic B-decays, CP violation & the UT ∗
We study the implication of the time-dependent CP asymmetry in B → π + π − decays on the extraction of weak phases taking into account the precise measurement of sin 2β, obtained from the " gold-plated " mode B → J/ψKS. Predictions and uncertainties for the hadronic parameters are investigated in QCD factorization. Furthermore, independent theoretical and experimental tests of the factorization...
متن کاملOn the Consequences of the Violation of Critical Pedagogy Principles from Iranian EFL Teacher Trainers’ Perspectives
The application of critical pedagogy in educational contexts has received adequate research attention over the last decades. The main focus of this strand of research has, however, been on raising awareness of the educators. Nevertheless, little is known about the consequences of the violation of critical pedagogy principles from EFL teacher trainers’ perspectives. To begin to address this gap ...
متن کاملTesting Cp Violation and Universal Extra Dimensions at Future Colliders
A 1 TeV linear ee collider with high luminosity and polarized beams is now a distinct possibility. If spin rotators can produce transversely polarized beams (TPB), providing two more vectors, they would make it possible to observe CP violation by observing a single final-state particle without measuring its spin. Two specific processes have been considered: a) ee → tt̄1,2 The four-Fermi Lagrangi...
متن کامل