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A perturbative determination of O(a) boundary improvement coefficients for the Schrödinger Functional coupling at 1-loop with improved gauge actions

Shinji Takeda·Sinya Aoki·Kiyotomo Ide
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Abstract

We determine O($a$) boundary improvement coefficients up to 1-loop level for the Schrödinger Functional coupling with improved gauge actions including plaquette and rectangle loops. These coefficients are required to implement 1-loop O($a$) improvement in full QCD simulations for the coupling with the improved gauge actions. To this order, lattice artifacts of step scaling function for each improved gauge action are also investigated. In addition, passing through the SF scheme, we estimate the ratio of $Λ$-parameters between the improved gauge actions and the plaquette action more accurately.

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Shinji Takeda, Sinya Aoki, Kiyotomo Ide. 2003-04-21. A perturbative determination of O(a) boundary improvement coefficients for the Schrödinger Functional coupling at 1-loop with improved gauge actions. https://doi.org/10.1103/physrevd.68.014505

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