Mass renormalisation for improved staggered quarks
J. Hein, Q. Mason, G.P. Lepage, H. Trottier
TL;DR
This paper discusses the perturbative mass renormalisation of improved staggered quark actions, showing they reduce mass renormalisation effects and are comparable to Wilson quarks, enhancing lattice QCD simulations.
Contribution
It introduces perturbation theory calculations for improved staggered quarks, demonstrating reduced mass renormalisation compared to naive versions.
Findings
Reduced quark mass renormalisation with improved actions
Renormalisation sizes similar to Wilson quarks
Enhanced suppression of flavour-changing interactions
Abstract
Improved staggered quark actions are designed to suppress flavour changing strong interactions. We discuss the perturbation theory for this type of actions and show the improvements to reduce the quark mass renormalisation compared to naive staggered quarks. The renormalisations are of similar size as for Wilson quarks.
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