O(a²)-improved actions for heavy quarks and scaling studies on quenched lattices

الأصل · EN

We investigate a new class of improved relativistic fermion action on the lattice with a criterion to give excellent energy-momentum dispersion relation as well as to be consistent with tree-level O(a²)-improvement. Main application in mind is that for heavy quark for which ma≃ O(0.5). We present tree-level results and a scaling study on quenched lattices.