SU(3) sextet model with Wilson fermions

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Abstract

We present our final results for the SU(3) sextet model with the non-improved Wilson fermion discretization. We find evidence for several phases of the lattice model, including a bulk phase with broken chiral symmetry. We study the transition between the bulk and weak coupling phase which corresponds to a significant change in the qualitative behavior of spectral and scale setting observables. In particular the t0 and w0 observables seem to diverge in the chiral limit in the weak coupling phase. We then focus on the study of spectral observables in the chiral limit in the weak coupling phase at infinite volume. We consider the masses and decay constants for the pseudoscalar and vector mesons, the mass of the axial vector meson and the spin-1/2 baryon as a function of the quark mass, while controlling finite volume effects. We then test our data against both the IR conformal and the chirally broken hypotheses. Preprint: CP3-Origins-2017-49 DNRF90

Original languageEnglish
Article number08018
JournalEPJ Web of Conferences
Volume175
Number of pages8
ISSN2101-6275
DOIs
Publication statusPublished - 26. Mar 2018
Event35th International Symposium on Lattice Field Theory, Lattice 2017 - Granada, Spain
Duration: 18. Jun 201724. Jun 2017

Conference

Conference35th International Symposium on Lattice Field Theory, Lattice 2017
CountrySpain
CityGranada
Period18/06/201724/06/2017
SponsorConsejo Superior de Investigaciones Cient�ficas, et al., Institute of Cosmos Sciences (ICCUB), Autonomous University of Madrid, University of Granada, University of Valencia

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