Search for D^0-\bar{D^0} mixing using semileptonic decays at Belle

Abstract

A search for mixing in the neutral D meson system has been performed using semileptonic D^0 \to K^(*)- e^+ nu decays. Neutral D mesons from D^*+ \to D^0 pi+ decays are used; the flavor at production is tagged by the charge of the slow pion. The measurement is performed using 253 fb^-1 of data recorded by the Belle detector. From the yield of right-sign and wrong-sign decays arising from non-mixed and mixed events, respectively, we estimate the upper limit of the time-integrated mixing rate to be r_D < 1.0 x 10^-3 at 90 % C.L.

6 pages, 3 figures, submitted to PRD-RC; version 2: the result and other numbers are the same; improved description of the motivation and the background, improved grammar, wording and Fig. 1; 1 column -> 2 columns

References in corpus (4)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The $D^0-{\bar{D}}^0$ mass difference from a dispersion relation
• Limits on Neutral D Mixing in Semileptonic Decays
• Search for D0-D0bar Mixing Using Semileptonic Decay Modes

Cited by in corpus (11)

• Model-independent constraints on Delta F=2 operators and the scale of New Physics
• Charm Meson Decays
• D-Dbar mixing and new physics: general considerations and constraints on the MSSM
• Time-Independent Measurements of D0-D0bar Mixing and Relative Strong Phases Using Quantum Correlations
• Determination of the D0 -> K+pi- Relative Strong Phase Using Quantum-Correlated Measurements in e+e- -> D0 D0bar at CLEO
• Search for $D^0-{\bar{D}}^0$ Mixing Using Doubly Flavor Tagged Semileptonic Decay Modes
• Improved search for D^0 mixing using semileptonic decays at Belle
• Mass spectra and decay properties of $D$ Meson in a relativistic Dirac formalism
• Determination of the Strong Phase in D0 -> K+pi- Using Quantum-Correlated Measurements
• Measurements of D0-D0bar Mixing and Searches for CP Violation: HFAG Combination of all Data
• HFAG Charm Mixing Averages