B Leptonic Decays and B- bar B Mixing with 2+1 Flavors of Dynamical Quarks

Abstract

Calculations of B leptonic decays and B- bar B mixing using NRQCD heavy and Asqtad light valence quarks on the MILC dynamical configurations are described. Smearing has been implemented to substantially reduce the statistical errors of the matrix elements needed for the determination of f_B. The four-fermion matrix elements needed for the determination of f_{B_s}^2B_{B_s} have been calculated and a preliminary result is given.

arXiv comment3 pages, 3 figures, talk given at Lattice2004(heavy), Batavia, Illinois, 21-26 Jun 2004

References in corpus (4)

• The QCD spectrum with three quark flavors
• High-Precision Lattice QCD Confronts Experiment
• Heavy-light mesons with staggered light quarks
• One-Loop Matching of the Heavy-Light A_0 and V_0 Currents with NRQCD Heavy and Improved Naive Light Quarks

Cited by in corpus (6)

• Mass of the B_c Meson in Three-Flavor Lattice QCD
• Full CKM matrix with lattice QCD
• Lattice calculation of SU(3) flavor breaking ratios in B - anti-B mixing
• Searching for chiral logs in the static-light decay constant
• B Physics on the Lattice: Present and Future
• B Decays on the Lattice and Results for Phenomenology