Flavor Symmetry and the Static Potential with Hypercubic Blocking

Abstract

We introduce a new smearing transformation, the hypercubic (HYP) fat link. The hypercubic fat link mixes gauge links within hypercubes attached to the original link only. Using quenched lattices at beta = 5.7 and 6.0 we show that HYP fat links improve flavor symmetry by an order of magnitude relative to the thin link staggered action. The static potential measured on HYP smeared lattices agrees with the thin link potential at distances r/a >= 2 and has greatly reduced statistical errors. These quenched results will be used in forthcoming dynamical simulations of HYP staggered fermions.

18 pages, 8 figures, few comments added in section 3 and new figures 6 and 7 split for better presentation, few references added

References in corpus (1)

• Dynamical Fermions with Fat Links

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• The determination of potential scales in 2+1 flavor QCD
• Large $N_c$ Thermodynamics with Dynamical Fermions
• Kaon B-parameter using Overlap Fermions
• Gauge Problem of Monopole Dynamics in SU(2) Lattice Gauge Theory
• Studies of Conformal Behavior in Strongly Interacting Quantum Field Theories
• Neutral B meson mixing with static heavy and domain-wall light quarks
• Strong-Isospin Breaking in the Neutron-Proton Mass Difference
• Pion spectrum using improved staggered fermions
• Progress report on the staggered epsilon'/epsilon project
• Monopoles of the Dirac type and color confinement in QCD -- Study of the continuum limit
• Neutral B-meson mixing from dynamical lattice QCD with chiral light quarks and static b-quarks
• Study of 1/m corrections in HQET
• Wilson loops with neural networks
• Novel Approaches to Renormalization Group Transformations in the Continuum and on the Lattice
• Soft dynamics in heavy-light mesons
• NSPT estimate of the improvement coefficient $c_A$ to two loops
• Calculating weak matrix elements using HYP staggered fermions
• One loop matching factors for improved staggered four-fermion operators with improved glue
• Link smearing considered as MCRG transformation
• Taming lattice artifacts with Pauli--Villars fields
• Lattice measurement of $B_{B_s}$ with a chiral light quark action
• Penguin diagrams for improved staggered fermions
• Flux tubes in QCD with (2+1) HISQ fermions
• Kaon Condensation with Lattice QCD
• Colour flux-tubes in static Pentaquark systems
• Tetraquark and the flux tube recombination
• Rotationally invariant dynamical lattice regulators for Euclidean quantum field theories