Hadron Spectroscopy with Dynamical Chirally Improved Fermions

Abstract

We simulate two dynamical, mass degenerate light quarks on 16^3x32 lattices with a spatial extent of 2.4 fm using the Chirally Improved Dirac operator. The simulation method, the implementation of the action and signals of equilibration are discussed in detail. Based on the eigenvalues of the Dirac operator we discuss some qualitative features of our approach. Results for ground state masses of pseudoscalar and vector mesons as well as for the nucleon and delta baryons are presented.

26 pages, 17 figures, 10 tables

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• Excited hadrons on the lattice: Baryons
• Fitting Correlated Data
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• Excited hadrons on the lattice: Mesons
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• Two-flavor QCD simulation with exact chiral symmetry
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• Baryons as relativistic three-quark bound states
• On the generalized eigenvalue method for energies and matrix elements in lattice field theory
• Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
• Resonance Parameters of the rho-Meson from Lattice QCD
• Nuclear Physics from Lattice QCD
• Coupled channel analysis of the rho meson decay in lattice QCD
• QCD Analysis of the Polarized World Data
• QCD Analysis of Polarized Deep Inelastic Scattering Data
• QCD with Two Light Dynamical Chirally Improved Quarks: Baryons
• Scalar mesons moving in a finite volume and the role of partial wave mixing
• Meson and baryon spectrum for QCD with two light dynamical quarks
• Lattice study of light scalar tetraquarks with I=0,2,1/2,3/2: are sigma and kappa tetraquarks?
• Nucleon, $\Delta$ and $\Omega$ excited states in $N_f=2+1$ lattice QCD
• On light baryons and their excitations
• Finite volume effects in pion-kaon scattering and reconstruction of the kappa(800) resonance
• Symmetries of hadrons after unbreaking the chiral symmetry
• Pion cloud effects on baryon masses
• Delta and Omega masses in a three-quark covariant Faddeev approach
• A novel analysis method for excited states in lattice QCD - the nucleon case
• Unbreaking chiral symmetry
• Scattering of unstable particles in a finite volume: the case of pi rho scattering and the a1(1260) resonance
• Nucleon to Delta electromagnetic transition in the Dyson-Schwinger approach
• Quark mass dependence of the pion vector form factor
• Strategy to find the two $\Lambda (1405)$ states from lattice QCD simulations
• P-wave nucleon-pion scattering amplitude in the $\Delta (1232)$ channel from lattice QCD
• The pion-pion Interaction in the rho Channel in Finite Volume
• Nucleon Excited States in N${}_f$=2 lattice QCD
• Finite volume treatment of pi pi scattering and limits to phase shifts extraction from lattice QCD
• The chirally improved quark propagator and restoration of chiral symmetry
• Ferromagnetic planar Josephson junction with transparent interfaces: a ϕ junction proposal
• The effect of normal metal layers in ferromagnetic Josephson junctions
• Topology of dynamical lattice configurations including results from dynamical overlap fermions
• QCD with two light dynamical chirally improved quarks: Mesons
• Angular momentum content of the rho-meson in lattice QCD
• The $DN$, $\pi {\Sigma }_c$ interaction in finite volume and the ${\Lambda }_c(2595)$ resonance
• The Dichotomous Nucleon: Some Radical Conjectures for the Large Nc Limit
• Dark matter relic density in strongly interacting dark sectors with light vector mesons
• Low and high spin mesons from $N_f=2$ Clover-Wilson lattices
• The chiral and angular momentum content of the rho-meson
• Chiral symmetry breaking and the spin content of the rho and rho' mesons
• Effects of the low lying Dirac modes on excited hadrons in lattice QCD
• Elastic Nucleon-Pion scattering amplitudes in the $\Delta$ channel at physical pion mass from Lattice QCD
• On ambiguities of sign determination of the S-matrix from energy levels in a finite box
• Effective chiral restoration in the rho'-meson in lattice QCD
• Screening masses in quenched (2+1)d Yang-Mills theory: universality from dynamics?
• Filtered topological structure of the QCD vacuum: Effects of dynamical quarks
• Effects of the low lying Dirac modes on the spectrum of ground state mesons
• Comparing the vacuum structure of quenched and dynamical configurations
• Beyond Rainbow-Ladder in a covariant three-body Bethe-Salpeter approach: Baryons
• Chiral symmetry breaking and the spin content of hadrons
• Link smearing considered as MCRG transformation
• Topological properties of minimally doubled fermions in two space-time dimensions