出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a detailed scaling study of the charm and bottom systems using our relativistic heavy
quark action and the Iwasaki gauge action in quenched QCD.We investigate two cases: (i) all the
four parameters n , rs, cB, cE in the heavy quark action are determined up to one-loop level, and (ii)
the parameter n is nonperturbatively determined from the dispersion relation of the quarkonium
with rs, cB, cE left at the one-loop level. We measure the charmonium and bottomonium spectra
including both spin-independent and spin-dependent splittings, heavy-light pseudoscalar decay
constants and charm and bottom quark masses. The results for the bottom system show good
scaling behavior compared to those with NRQCD. This feature is further improved, once the
nonperturbative n is employed.
