D^0-\bar{D}^0 Mixing and CP Violation in Neutral D-meson Decays

Abstract

D^0-\bar{D}^0 mixing at the detectable level or significant CP violation in the charm system may strongly signify the existence of new physics. In view of the large discovery potential associated with the fixed target experiments, the B-meson factories and the τ-charm factories, we make a further study of the phenomenology of D^0-\bar{D}^0 mixing and CP violation in neutral $D$-meson decays. The generic formulas for the time-dependent and time-integrated decay rates of both coherent and incoherent D^0\bar{D}^0 events are derived, and their approximate expressions up to the second order of the mixing parameters x_D and y_D are presented. Explicitly we discuss D^0-\bar{D}^0 mixing and various CP-violating signals in neutral D decays to the semileptonic final states, the hadronic CP eigenstates, the hadronic non-CP eigenstates and the CP-forbidden states. A few non-trivial approaches to the separate determination of x_D and y_D and to the demonstration of direct and indirect CP asymmetries in the charm sector are suggested.

Latex 42 pages (including 6 PS figures). Minor changes: a) the more popular notation for D^0-\bar{D}^0 mixing is adopted; b) the possibility to test CPT symmetry in D^0-\bar{D}^0 system is not overrated. The present version is going to appear in Phys. Rev. D 1 (January 1997)

References in corpus (19)

• Nonleptonic weak decays of charmed mesons
• Interference Between Cabibbo Allowed and Doubly Forbidden Transitions in $D\ra K_{S,L} + π'$s Decays
• Testing CPT with the Neutral-D System
• The Role of CP violation in D0 anti-D0 Mixing
• SU(3) Breaking Effects in Charmed Meson Decays
• CP Violation in $D^0-\overline{D^0}$Mixing
• Experimental Implications of Large CP Violation and Final State Interactions in the Search for $D^0\overline{D^0}$ Mixing
• On Test of CPT Symmetry in CP Violating B Decays
• Test of $CPT$ Symmetry in $CP$-violating $B$ Decays
• $D^0-{\bar{D}}^0$ Mixing in the Presence of Isosinglet Quarks
• Effect of $K^0-{\bar{K}}^0$ Mixing on $CP$ Asymmetries in Weak Decays of $D$ and $B$ Mesons
• D-Meson Mixing in Broken SU(3)
• Rephase-Invariant CP-Violating Observables and Mixings in the $B^0$, $D^0$, $K^0$ Systems.
• Time Dependence of Coherent $P^0{\bar{P}}^0$ Decays and CP Violation at Asymmetric $B$ Factories
• D^0 \to K^{\pm}π^{\mp} and CP Violation at a τ-charm Factory
• On Testing Unitarity of the Quark Mixing Matrix
• Possible Effects of $D^0-{\bar{D}}^0$ Mixing in Weak $B$ Decays
• A Time-independent Way to Probe D^0-\bar D^0 Mixing at Tau-charm Factories
• Remarks on the Quark-diagram Description of Two-body Nonleptonic B-meson Decays

Cited by in corpus (56)

• Improved Methods for Observing CP Violation in B+/- --> K+/- D0 and Measuring the CKM Phase gamma
• STCF Conceptual Design Report: Volume 1 -- Physics & Detector
• Charm System Tests of CPT and Lorentz Invariance with FOCUS
• B-factory Physics from Effective Supersymmetry
• Measurement of CP--violating asymmetries in D0 --> pi+ pi- and D0 --> K+K- decays at CDF
• The Emergence of the $\Delta U=0$ Rule in Charm Physics
• Study of the Standard Model with weak decays of charmed hadrons at BESIII
• Measuring $D^0-{\bar{D}}^0$ Mixing and Relative Strong Phases at a Charm Factory
• Time-Independent Measurements of D0-D0bar Mixing and Relative Strong Phases Using Quantum Correlations
• Charm mixing in the model-independent analysis of correlated D0-D0bar decays
• Determination of the D0 -> K+pi- Relative Strong Phase Using Quantum-Correlated Measurements in e+e- -> D0 D0bar at CLEO
• Measurement of the $D\to K^{-}{\pi }^{+}$ strong phase difference in $\psi (3770)\to D^0\overline{D}{}^0$
• Determination of the D0 -> K-pi+pi0 and D0 -> K-pi+pi+pi- Coherence Factors and Average Strong-Phase Differences Using Quantum-Correlated Measurements
• Updated Measurement of the Strong Phase in D0 --> K+pi- Decay Using Quantum Correlations in e+e- --> D0 D0bar at CLEO
• Improved search for D^0 mixing using semileptonic decays at Belle
• Flavor Symmetry, K^0-\bar{K}^0 Mixing and New Physics Effects on CP Violation in D^{\pm} and D^{\pm}_s Decays
• Branching Fractions for D0 -> K+K- and D0 -> pi+pi-, and a Search for CP Violation in D0 Decays
• Determination of the Strong Phase in D0 -> K+pi- Using Quantum-Correlated Measurements
• Study of CP violation in D->VV decay at BESIII
• Search for D^0-\bar{D^0} mixing using semileptonic decays at Belle
• $K_S^0-K_L^0$ asymmetries in $D$-meson decays
• Measuring the Relative Strong Phase in $D^0\to K^{\ast +}{K}^{-}$ and $D^0\to K^{\ast -}{K}^{+}$ Decays
• Measurement of $y_{CP}$ in $D^0-{\overline{D}}^0$ oscillation using quantum correlations in $e^{+}{e}^{-}\to D^0{\overline{D}}^0$ at $\sqrt{s}$ = 3.773\,GeV
• D^0-D^0bar mixing in Υ(1S) \to D^0 D^0bar decay at Super-B
• Study of the Decays $D_s^{+}\to K_S^0{K}^{+}$ and $K_L^0{K}^{+}$
• Strong Phase and $D^0-D^{0}bar$ mixing at BES-III
• Pathways to a clean gamma (phi3): From B to Super B-factories
• D0barD0 Quantum Correlations, Mixing, and Strong Phases
• Extracting CP violation and strong phase in D decays by using quantum correlations in psi(3770)-> D0\bar{D}0 -> (V1V2)(V3V4) and psi(3770)->D0\bar{D}0 -> (V1V2)(K pi)
• Time reversal symmetry violation in entangled pseudoscalar neutral charmed mesons
• Measurement of the $D\to K^{-}{\pi }^{+}{\pi }^{+}{\pi }^{-}$ and $D\to K^{-}{\pi }^{+}{\pi }^0$ coherence factors and average strong-phase differences in quantum-correlated $D\bar{D}$ decays
• CP violation for neutral charmed meson decays to CP eigenstates
• Opposite-sign Dilepton Asymmetry of Neutral B Decays: a Probe of New Physics from CPT or ΔB = ΔQ Violation
• Asymmetries from the interference between Cabibbo-favored and doubly-Cabibbo-suppressed D decays
• Improved measurements of the absolute branching fractions of the inclusive decays $D^{+(0)}\to \varphi X$
• Possible test for CPT invariance with correlated neutral B decays
• A U-spin prediction for the CP-forbidden transition $e^{+}{e}^{-}\to D^0{\bar{D}}^0\to (K^{+}{K}^{-}{)}_D({\pi }^{+}{\pi }^{-}{)}_D$
• Phenomenological Issues in the Determination of Delta Gamma_D
• Simultaneous least squares fitter based on the Lagrange multiplier method
• Charm Physics at the Super $\tau$-Charm Factory
• New Time Distributions of D^0-\bar{D}^0 or B^0-\bar{B}^0 Mixing and CP Violation
• Testing CPT Invariance in B^0_d-\bar{B}^0_d and B^0_s-\bar{B}^0_s Oscillations
• Novel correlated $D^0\overline{D}{}^0$ systems for $c/b$ physics and tests of $T/CPT$
• A Novel Possibility to Determine the CP-violating Phase γand the B^0_s-\bar{B}^0_s Mixing Parameter y_s at the Υ(5S) Resonance
• D0-anti-D0 Mixing and CP Violation in D0 vs anti-D0 to K*(+-) K(-+) Decays
• Observation of $D^{0(+)}\to K_S^0{\pi }^{0(+)}{\eta }^{\prime }$ and improved measurement of $D^0\to K^{-}{\pi }^{+}{\eta }^{\prime }$
• D0D0bar Quantum Correlations, Mixing, and Strong Phases
• A simulation study on the measurement of D0-D0bar mixing parameter y at BES-III
• Standard Model of Particle Physics Violating Crypto-Nonlocal Realism
• A novel measurement of the strong-phase difference between $D^0\to K^{-}{\pi }^{+}$ and ${\bar{D}}^0\to K^{-}{\pi }^{+}$ decays using $C$-even and $C$-odd quantum-correlated $D\bar{D}$ pairs
• First observation of quantum correlations in $e^{+}{e}^{-}\to XD\bar{D}$ and $C$-even constrained $D\bar{D}$ pairs
• Measurement of strong phase in $D^0\to K\pi$ decay at BESIII
• Extracting strong phase and $CP$ violation in $D$ decays by using quantum correlations in $\psi (3770)\to D^0{\overline{D}}^0\to (V_1{V}_2)(K\pi )$ and $ψ(3770)\to D^0\overline{D}^0\to (V_1V_2)(V_3V_4)
• Searches for New Physics in CP Violation from BaBar
• Search for CP violation in $e^{+}{e}^{-}\to \psi (3770)\to D^0{\bar{D}}^0$ via $D->K_S^0{\pi }^0$
• A Test of CPT Symmetry in K^0 vs \bar{K}^0 to π^+π^-π^0 Decays