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Semileptonic decays of D mesons in unquenched lattice QCD

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arxiv hep-lat/0309107 v1 pith:LGCR73FC submitted 2003-09-16 hep-lat

Semileptonic decays of $D$ mesons in unquenched lattice QCD

classification hep-lat
keywords actionfactorsformlatticemesonsquarkquarksresults
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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abstract

We present our preliminary results for semileptonic form factors of $D$ mesons in unquenched lattice QCD. Simulations are carried out with $n_f=2+1$ dynamical quarks using gauge configurations generated by the MILC collaboration. For the valence quarks, we adopt an improved staggered light quark action and the clover heavy quark action. Our results for $D \to K$ and $D \to \pi$ form factors at $q^2=0$ are in agreement with the experimental values.

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