Time-dependent CP asymmetries in D and B decays

Abstract

The measurement of time-dependent CP asymmetries in charm decays can provide a unique insight into the flavor changing structure of the Standard Model. We examine a number of different CP eigenstate decays of D mesons and describe a method that can be used to measure time-dependent CP asymmetries at existing and future experiments, with a preliminary assessment, based on statistical considerations, of their various capabilities. Any asymmetry observed in time-dependent analysis of neutral D mesons could signify new physics. We discuss the measurements required to perform direct and indirect tests of the charm unitarity triangle and the relationship between this and the B_d unitarity triangle. We also highlight that current experimental bounds on DeltaGamma(B_d) translate into a significant systematic uncertainty on the measurement of beta from b to c c-bar s decays.

19 pages, 7 figures, 3 tables

References in corpus (5)

• New Physics and CP Violation in Singly Cabibbo Suppressed D Decays
• Observation of Time-Dependent CP Violation in B0 -> eta' K0 Decays and Improved Measurements of CP Asymmetries in B0 -> phiK0, KsKsKs and B0 -> J/psi K0 Decays
• Observation of Direct CP-Violation in B0 --> pi+pi- Decays and Model-Independent Constraints on phi2
• Determination of the D0 -> K+pi- Relative Strong Phase Using Quantum-Correlated Measurements in e+e- -> D0 D0bar at CLEO
• Isospin analysis of D0 decay to three pions

Cited by in corpus (11)

• Testing for new physics in singly Cabibbo suppressed D decays
• Searching for the Origin of CP violation in Cabibbo Suppressed D-meson Decays
• Direct CP Violation in Charm Decays due to Left-Right Mixing
• Flavor and CP Violation from a QCD-like Hidden Sector
• Bounding hadronic uncertainties in $c\to u$ decays
• Prospects of mixing and CP violation in the D system at SuperB
• CP Violation in Charm: a New Method
• The SuperB factory: Physics Prospects and Project Status
• Charm Mesons at the SuperB Experiment: Rare Decays, Mixing and CP Violation Potential
• Escaping from controversies in $CP$ violation measurements in charm decays
• Time-dependent CP asymmetries in charm decays