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Decays of mesons with charm quarks on the lattice

Braun, Vladimir M. and Ali Khan, Arifa and Burch, Tommy and Göckeler, Meinulf and Lacagnina, G. N. and Schäfer, Andreas and Schierholz, Gerrit (2007) Decays of mesons with charm quarks on the lattice. In: XXV International Symposium on Lattice Field Theory, 30. Juli - 4. August 2007, Regensburg.

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Abstract

We investigate mesons containing charm quarks on fine lattices with a^ ${-1}$ $\sim$ 5 GeV. The quenched approximation is employed using the Wilson gauge action at $\beta$ = 6.6 and nonperturbatively O(a) improved Wilson quarks. We present results for decay constants using various interpolating fields and give preliminary results for form factors of semileptonic decays of D_s mesons to light pseudoscalar mesons.