Status of lattice calculations of B-meson decays and mixing

  • Hartmut Wittig
PS10 Non-perturbative Field Theory


The present status of lattice calculations of fB, BB and SU(3) flavour breaking ratios such as \({f_{\rm B_s}}/{f_{\rm B}}\) is reviewed. Particular attention is devoted to systematic uncertainties, such as those arising from the lack of simulation data for dynamical quarks with realistic masses, and the related difficulties associated with chiral extrapolations. Global averages for decay constants and mixing parameters are presented (Table 1), and the procedures to obtain them are discussed in detail.

PACS: 11.30.Er CP violation – 12.38.Gc Lattice QCD calculations – 14.40.Nd Bottom mesons


Simulation Data Present Status Systematic Uncertainty Decay Constant Global Average 
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Copyright information

© Springer-Verlag, Società Italiana di Fisica 2003

Authors and Affiliations

  • Hartmut Wittig
    • 1
  1. 1.DESY, Notkestraße 85, D-22603 HamburgGermany

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