出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Preliminary results are presented in a step scaling determination of the coefficients in the relativistic
heavy quark action. By matching finite volume, heavy-heavy and heavy-light meson masses,
we attempt to determine the four parameters (m, z , cB and cE) in the on-shell-improved, heavy
quark action. In this report we carry out one step in this program by matching two physically
equivalent systems. The first is a fully relativistic calculation using a 243 ×48, 1/a = 5.4 GeV
lattice with both the heavy and light quarks treated as domain wall fermions. The second calculation
uses at 163 ×32, 1/a = 3.6 GeV lattice, a domain-wall light quark and a heavy quark
computed with the relativistic heavy quark action. The four parameters in this heavy quark effective
action are then varied to reproduce the mass spectrum from the first calculation. These
calculations are carried out in the quenched approximation for a heavy quark mass approximately
that of the charmed quark.
