Spectroscopy of SU(4) gauge theory with two flavors of sextet fermions

2015/01/31 by Thomas DeGrand, Yuzhi Liu, Ethan T. Neil +2 · 2 citations
Physics and Astronomy · #Antisymmetric relation #Baryon #Black Holes and Theoretical Physics #Diquark #Fermion #Gauge theory #Mathematical physics #Meson #Octet #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quark #hep-lat #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.91.114502

published as Phys. Rev. D 91, 114502 (2015) · 20 pages, 16 figures. v2: updated to match journal version

openalex publication_date 2015/06/10 · arxiv created 2015/06/15 · arxiv updated 2015/06/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We present a first look at the spectroscopy of SU(4) gauge theory coupled to two flavors of Dirac fermions in the two-index antisymmetric representation, which is a real representation. We compute meson and diquark masses, the pseudoscalar and vector meson decay constants, and the masses of six-quark baryons. We make comparisons with large-N_c expectations.

Citations

• Higgs boson from an extended symmetry
• Ncdependencies of baryon masses: Analysis with lattice QCD and effective theory
• Baryon hyperfine mass splittings large N QCD
• Vacuum alignment and lattice artifacts: Wilson fermions
• Chiral perturbation theory: Expansions in the mass of the strange quark
• Bulk first-order phase transition in three-flavor lattice QCD withO(a)-improved Wilson fermion action at zero temperature
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• A planar diagram theory for strong interactions
• Spin-flavor structure of largeNcbaryons
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Cited by

• The large N_c limit of QCD on the lattice
• Stability analysis of the chiral transition in SU(4) gauge theory with fermions in multiple representations