Taste-Changing in Staggered Quarks
Quentin Mason, Peter Lepage, Paul Mackenzie, Howard Trottier, Joachim, Hein, Christine Davies, Eduardo Follana
TL;DR
This paper investigates taste-changing interactions in improved staggered quarks, demonstrating how one-loop taste-changing effects can be mitigated through an effective four-quark term with calculated coefficients.
Contribution
It provides a systematic perturbative analysis and explicit calculation of coefficients to remove taste-changing interactions in staggered quarks.
Findings
One-loop taste-changing interactions can be eliminated perturbatively.
Effective four-quark terms can be used to cancel taste-changing effects.
Calculated coefficients for the four-quark operators are provided.
Abstract
We present results from a systematic perturbative investigation of taste-changing in improved staggered quarks. We show one-loop taste-changing interactions can be removed perturbatively by an effective four-quark term and calculate the necessary coefficients.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Quantum Chromodynamics and Particle Interactions · Relativity and Gravitational Theory