Spectrum and decay matrix elements of B and D-mesons in lattice NRQCD

Details Spectrum and decay matrix elements of B and D-mesons in lattice NRQCD Spectrum and decay matrix elements of B and D-mesons in lattice NRQCD

2000-09-07

arxiv.org/abs/hep-ph/0009088v1

Nucl.Phys.Proc.Suppl.96:386-393,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at: QCD 00 International Euroconference in Quantum Chromodynamics 6-13th July Montpellier, France

Scientific paper

10.1016/S0920-5632(01)01157-4

We discuss recent results on the excitation spectra of B and D-mesons obtained in the framework of non-relativistic lattice QCD in the quenched approximation. The results allow for the determination of the $\msbar$-mass of $m_{b,\msbar}(m_{b,\msbar})= 4.34(7)$ GeV in ${\cal O}(\alpha_s^3)$ in the perturbative matching. The determination of the decay constants f_{B_s} and f_{D_s} is discussed in detail. Results for the matrix elements of semi-leptonic B to D decays are shown.

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