Status of lattice calculations of B-meson decays and mixing

Details Status of lattice calculations of B-meson decays and mixing Status of lattice calculations of B-meson decays and mixing

2003-10-29

arxiv.org/abs/hep-ph/0310329v1

Eur.Phys.J.C33:s890-s894,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk at Int. Europhysics Conf. on High Energy Physics, EPS-HEP2003, 17-23 July 2003, Aachen, Germany. 5 pages LaTeX, 4

Scientific paper

10.1140/epjcd/s2003-03-1005-y

The present status of lattice calculations of f_B, B_B and SU(3) flavour breaking ratios such as f_Bs/f_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.

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