Blockinðð× Ôöóóððñ× Ò Ððøøø Ééé
نویسندگان
چکیده
A novel method to calculate fB on the lattice is introduced, based on the study of the dependence of finite size effects upon the heavy quark mass of flavoured mesons and on a non–perturbative recursive finite size technique. We avoid the systematic errors related to extrapolations from the static limit or to renormalization aspects of non–relativistic QCD and the results can be extrapolated to the continuum limit. The value at finite lattice spacing, but close to the continuum limit, is fB = 170(11) MeV. We also obtain fBs = 192(9) MeV. The method can be generalized to two–scale problems in lattice QCD.
منابع مشابه
F B Òò Øûó × Blockin Blockinðð× Ôöóóððñ× Ò Ððøøø Ééé
A novel method to calculate fB on the lattice is introduced, based on the study of the dependence of finite size effects upon the heavy quark mass of flavoured mesons and on a non–perturbative recursive finite size technique. We avoid the systematic errors related to extrapolations from the static limit or to the tuning of the coefficients of effective Lagrangian and the results admit an extrap...
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تاریخ انتشار 2002