One-loop determination of mass dependent $O(a)$ improvement coefficients for the heavy-light vector and axial-vector currents with relativistic heavy and domain-wall light quarks

Details One-loop determination of mass dependent $O(a)$ improvement coefficients for the heavy-light vector and axial-vector currents with relativistic heavy and domain-wall light quarks One-loop determination of mass dependent $O(a)$ improvement coefficients for the heavy-light vector and axial-vector currents with relativistic heavy and domain-wall light quarks

2004-09-14

arxiv.org/abs/hep-lat/0409057v1

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, 1 figure, talk presented at Lattice2004(improved), Fermilab, June 21-26, 2004

Scientific paper

10.1016/j.nuclphysbps.2004.11.26

We present the one-loop results of the mass dependent $O(a)$ improvement coefficients for the heavy-light vector and axial-vector currents consisting of the relativistic heavy and the domain-wall light quarks. The calculations are performed with the plaquette, Iwasaki and DBW2 gauge actions. The heavy quark mass and domain-wall height dependence is investigated. We point out that the exact chiral symmetry held by the lattice light quark action leads to an exact relation between the improvement coefficients for the vector and axial-vector currents without regard to the lattice heavy quark action.

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