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On-shell improvement of the massive Wilson quark action | | S. Aoki
; Y. Kayaba
; Y. Kuramashi
; N. Yamada
; | | Date: |
1 Sep 2004 | | Subject: | hep-lat | | Abstract: | We review a relativistic approach to the heavy quark physics in lattice QCD by applying a relativistic $O(a)$ improvement to the massive Wilson quark action on the lattice. After explaining how power corrections of $m_Q a$ can be avoided and remaining uncertainties are reduced to be of order $(aLambda_{
m QCD})^2$, we demonstrate a determination of four improvement coefficients in the action up to one-loop level in a mass dependent way. We also show a perturbative determination of mass dependent renormalization factors and $O(a)$ improvement coefficients for the vector and axial vector currents. Some preliminary results of numerical simulations are also presented. | | Source: | arXiv, hep-lat/0409001 | | Services: | Forum | Review | PDF | Favorites | |
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