Relativistic heavy quarks on the lattice

We investigate feasibility of relativistic approaches to the heavy quark physics on both anisotropic and isotropic lattices. Our peturbative calculation reveals that the anisotropic lattice is not theoretically adovantageous over the isotropic one to control $m_Q a$ errors. We instead propose a new relativistic approach to handle heavy quarks on the isotropic lattice.

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