Heavy quark masses from finite volume effects
نویسندگان
چکیده
منابع مشابه
Heavy quark masses from finite volume effects
I discuss the results of a new calculation of the charm and bottom quark masses in the quenched approximation and in the continuum limit of lattice QCD. The work has been done by the APE group at the “Tor Vergata” University [1] making use of the step scaling method, previously introduced to deal with two scale problems, that allows to take the continuum limit of the lattice data. We have compu...
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We apply the resummed version of the Lüscher formula to analyze finite volume corrections to the mass of the nucleon and of heavy mesons. We show that by applying the subthreshold expansion of the scattering amplitudes one can express the finite volume corrections in terms of only a few physical observables and the size of the box. In the case of the nucleon, the available information about the...
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Recent theoretical and experimental improvements in the determination of charmedand bottom-quark masses are discussed. The final results, mc(3GeV) = 986(13)MeV and mb(mb) = 4163(16) MeV, are among the most precise determinations of these two fundamental parameter. A critical analysis of the theoretical and experimental uncertainties is presented and possibilities for further improvements of the...
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Using automated perturbation theory techniques, we have computed the one-loop mass of Fermilab fermions, with an improved gluon action. We will present the results of these calculations, and the resulting predictions for the charm and bottom quark masses in the MSbar scheme. We report mc(mc) = 1.22(9) GeV and mb(mb) = 4.7(4) GeV. In addition we present results for the one-loop coefficients of t...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2004
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(03)02582-9