Light quark mass effects in the on-shell renormalization constants
نویسندگان
چکیده
We compute the three-loop relation between the pole and the minimally subtracted quark mass allowing for virtual effects from a second massive quark. We also consider the analogue effects for the on-shell wave function renormalization constant. PACS numbers: 12.38.Bx 12.38.-t 14.65.Dw 14.65.Fy
منابع مشابه
Quark Masses and Renormalization Constants from Quark Propagator and 3-point Functions
We have computed the light and strange quark masses and the renormalization constants of the quark bilinear operators, by studying the large-p behaviour of the lattice quark propagator and 3-point functions. The calculation is non-perturbatively improved, at O(a), in the chiral limit. The method used to compute the quark masses has never been applied so far, and it does not require an explicit ...
متن کاملQuark Masses and Renormalization Constants from Quark Propagator and 3 - point Functions ∗
We have computed the light and strange quark masses and the renormalization constants of the quark bilinear operators, by studying the large-p behaviour of the lattice quark propagator and 3-point functions. The calculation is non-perturbatively improved, at O(a), in the chiral limit. The method used to compute the quark masses has never been applied so far, and it does not require an explicit ...
متن کاملFour-loop renormalization of QCD: full set of renormalization constants and anomalous dimensions
The anomalous dimensions of the gluon and ghost fields as well as those of the ghost-ghost-gluon and quark-quark-gluon vertexes are analytically computed at four loops in pQCD. Taken together with already available anomalous dimensions of the coupling constant, the quark field and the mass the results lead to complete knowledge of all renormalization constant entering into the renormalization o...
متن کاملar X iv : h ep - l at / 9 60 81 44 v 1 2 8 A ug 1 99 6 1 Topics in Light Hadron Mass Spectrum in Quenched QCD ∗
Several topics concerning the light hadron spectrum are discussed. Flavor symmetry breaking effects and the problem of quenched chiral logarithm are examined with pion mass data for the Kogut-Susskind quark action, and light meson decay constants for the Wilson action calculated with non-perturbative renormalization constants are discussed. Results for quark masses are also given both for the K...
متن کاملRelation between the pole and the minimally subtracted mass in dimensional regularization and dimensional reduction to three-loop order
We compute the relation between the pole quark mass and the minimally subtracted quark mass in the framework of QCD applying dimensional reduction as a regularization scheme. Special emphasis is put on the evanescent couplings and the renormalization of the ε-scalar mass. As a by-product we obtain the three-loop on-shell renormalization constants ZOS m and Z OS 2 in dimensional regularization a...
متن کامل