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$B^{0}-\overline{B}^{0}$ Mixing and Decay Constants from Lattice QCD

We present updates of our results for neutral $B$-meson mixing and leptonic decay constants obtained in the quenched approximation from a mean-field-improved Sheikholeslami-Wohlert action at two values of lattice spacing. We consider quantities such as $B_{B_{d(s)}}$, $f_{D_{(s)}}$, $f_{B_{(s)}}$ an...

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Detalles Bibliográficos
Autores principales: Lellouch, Laurent, Lin, C.J.David
Lenguaje:eng
Publicado: 1999
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.003.0050
http://cds.cern.ch/record/411926
Descripción
Sumario:We present updates of our results for neutral $B$-meson mixing and leptonic decay constants obtained in the quenched approximation from a mean-field-improved Sheikholeslami-Wohlert action at two values of lattice spacing. We consider quantities such as $B_{B_{d(s)}}$, $f_{D_{(s)}}$, $f_{B_{(s)}}$ and the full $\Delta B=2$ matrix-elements, as well as the corresponding SU(3)-breaking ratios.