Lattice study of conformality in twelve-flavor QCD

Abstract

We study infrared conformality of the twelve-flavor QCD on the lattice. Utilizing the highly improved staggered quarks (HISQ) type action which is useful to study the continuum physics, we analyze the lattice data of the mass and the decay constant of a pseudoscalar meson and the mass of a vector meson as well at several values of lattice spacing and fermion mass. Our result is consistent with the conformal hypothesis for the mass anomalous dimension ${\gamma }_m\sim 0.4-0.5$.

38pages, 21figures

References in corpus (8)

• Highly Improved Staggered Quarks on the Lattice, with Applications to Charm Physics
• Scaling studies of QCD with the dynamical HISQ action
• The physics of eight flavours
• Nearly conformal gauge theories in finite volume
• Higher-Loop Corrections to the Infrared Evolution of a Gauge Theory with Fermions
• Scaling relations for the entire spectrum in mass-deformed conformal gauge theories
• Running coupling constant of ten-flavor QCD with the Schrödinger functional method
• Comments on lattice gauge theories with infrared-attractive fixed points

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