The authors extract the psi(3770) to D Dbar hadronic mixing and a decay width compatible with experiment using a narrow-width ratio method on two CLS ensembles.
Charm quark mass and D-meson decay constants from two-flavour lattice QCD
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We present a computation of the charm quark's mass and the leptonic D-meson decay constants f_D and f_{D_s} in two-flavour lattice QCD with non-perturbatively O(a) improved Wilson quarks. Our analysis is based on the CLS configurations at two lattice spacings (a=0.065 and 0.048 fm, where the lattice scale is set by f_K) and pion masses ranging down to ~ 190 MeV at L*m_pi > 4, in order to perform controlled continuum and chiral extrapolations with small systematic uncertainties.
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The hadronic decay of vector charmonium
The authors extract the psi(3770) to D Dbar hadronic mixing and a decay width compatible with experiment using a narrow-width ratio method on two CLS ensembles.