Neutral B Meson Mixing and Heavy-light Decay Constants from Quenched Lattice QCD

Abstract

We present high-statistics results for neutral $B$-meson mixing and heavy-light-meson leptonic decays in the quenched approximation from tadpole-improved clover actions at $\beta =6.0$ and $\beta =6.2$. We consider quantities such as $B_{B_{d(s)}}$, $f_{D_{d(s)}}$, $f_{B_{d(s)}}$ and the full $\Delta B=2$ matrix elements as well as the corresponding SU(3)-breaking ratios. These quantities are important for determining the CKM matrix element $|V_{td}|$.

LATTICE98(heavyqk). Revised version. Typos in the second and third equations corrected. Very small changes to text. Results unchanged

References in corpus (1)

• SU(3) Flavor Breaking in Hadronic Matrix Elements for $B-\bar{B}$ Oscillations

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• Operator Product Expansion for Exclusive Decays: B^+ ->Ds^+ e+e- and B^+ -> Ds^{*+} e+e-