Testing Fermion Universality at a Conformal Fixed Point
Department of Physics, University of Colorado, Boulder, CO 80309, USA
2 Department of Physics and Center for Computational Science, Boston University, Boston, MA 02215, USA
3 Higgs Centre for Theoretical Physics, University of Edinburgh, Edinburgh, EH9 3FD, UK
* Speaker, e-mail: Anna.Hasenfratz@colorado.edu
Published online: 26 March 2018
Universality of various fermion formulations is well established in QCD-like theories defined around the perturbative g2 = 0 fixed point. These arguments do not apply for conformal systems that exhibit an infrared fixed point at non-vanishing g2 coupling. We investigate the step scaling function for systems with 10 or 12 fundamental flavors using domain wall fermions and compare it to perturbative predictions. We test universality by contrasting our findings to results published in the literature based on staggered fermions.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).