Charm physics with highly improved staggered quarks

Details Charm physics with highly improved staggered quarks Charm physics with highly improved staggered quarks

2006-10-20

arxiv.org/abs/hep-lat/0610110v1

PoSLAT2006:082,2006

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, contribution to Lattice 2006

Scientific paper

We use a relativistic highly improved staggered quark action to discretize charm quarks on the lattice. We calculate the masses and the dispersion relation for heavy-heavy and heavy-light meson states, and show that for lattice spacings below .1 fm, the discretization errors are at the few percent level. We also discuss the prospects for accurate calculations at the few percent level of f_D_s, f_D, and the leptonic width of the psi and phi.

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