Chiral extrapolation of baryon mass ratios

Abstract

We analyze lattice data for octet baryon masses from the QCDSF collaboration employing manifestly covariant Baryon Chiral Perturbation Theory. It is shown that certain combinations of low-energy constants can be fixed more accurately than before from this data. We also examine the impact of this analysis on the pion-nucleon sigma term, and on the convergence properties of baryon mass expansions in the SU(3) symmetry limit.

arXiv commentUpdated version, to be published in Phys. Rev. D

References in corpus (39)

• 2+1 Flavor Lattice QCD toward the Physical Point
• Review of lattice results concerning low energy particle physics
• Baryon Chiral Perturbation Theory in Manifestly Lorentz Invariant Form
• Chiral expansion of baryon masses and $\sigma$-terms
• Octet baryon masses and sigma terms from an SU(3) chiral extrapolation
• Lattice QCD at the physical point: Simulation and analysis details
• Consistent Analysis of the Spin Content of the Nucleon
• Light hadron spectroscopy using domain wall valence quarks on an Asqtad sea
• Flavour blindness and patterns of flavour symmetry breaking in lattice simulations of up, down and strange quarks
• SU(3) Baryon Chiral Perturbation Theory and Long Distance Regularization
• Chiral dynamics of the S11(1535) and S11(1650) resonances revisited
• Sigma term and strangeness content of octet baryons
• Nucleon mass and sigma term from lattice QCD with two light fermion flavors
• Critical Analysis of Baryon Masses and Sigma-Terms in Heavy Baryon Chiral Perturbation Theory
• Chiral extrapolations of baryon masses for unquenched three-flavor lattice simulations
• The lowest-lying baryon masses in covariant SU(3)-flavor chiral perturbation theory
• Baryon axial currents
• Hyperon sigma terms for 2+1 quark flavours
• SU(2) and SU(3) chiral perturbation theory analyses on baryon masses in 2+1 flavor lattice QCD
• The nucleon axial-vector coupling beyond one loop
• First Calculation of Hyperon Axial Couplings from Lattice QCD
• Aspects of meson-baryon scattering in three- and two-flavor chiral perturbation theory
• Octet Baryon Masses in Partially Quenched Chiral Perturbation Theory
• Baryon masses and nucleon sigma terms in manifestly Lorentz-invariant baryon chiral perturbation theory
• Pion photoproduction off the proton in a gauge-invariant chiral unitary framework
• Baryon self energies in the chiral loop expansion
• Strangeness in the baryon ground states
• Hyperons in Two Flavor Chiral Perturbation Theory
• Baryon masses, chiral extrapolations, and all that
• On the quark-mass dependence of the baryon ground-state masses
• On the structure of large N cancellations in baryon chiral perturbation theory
• Baryon Masses in Chiral Perturbation Theory with Infrared Regularization
• Evidence for non-analytic light quark mass dependence in the baryon spectrum
• Baryon Masses at Second Order in Chiral Perturbation Theory
• Probing the convergence of perturbative series in baryon chiral perturbation theory
• On the consistency of recent QCD lattice data of the baryon ground-state masses
• Reordering of Baryon Chiral Perturbation Theory
• Kaon Thresholds and Two-Flavor Chiral Expansions for Hyperons
• The Convergence Radius of the Chiral Expansion in the Dyson-Schwinger Approach

Cited by in corpus (15)

• Octet baryon masses in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
• Recent developments in SU(3) covariant baryon chiral perturbation theory
• On finite volume effects in the chiral extrapolation of baryon masses
• On the convergence of the chiral expansion for the baryon ground-state masses
• Decuplet baryon masses in covariant baryon chiral perturbation theory
• Model-independent calculation of $SU(3{)}_f$ violation in baryon octet light-cone distribution amplitudes
• Chiral behavior of vector meson self energies
• Baryon chiral perturbation theory with Wilson fermions up to $\mathcal{O}(a^2)$ and discretization effects of latest $n_f=2+1$ LQCD octet baryon masses
• Baryons in/and Lattice QCD
• Chiral Analysis of the Nucleon Mass and Sigma Commutator
• Constraints from a large-N_c analysis on meson-baryon interactions at chiral order Q^3
• Lattice QCD with 2+1 Flavors and Open Boundaries: First Results of the Baryon Spectrum
• Quark mass dependence of the ground-state octet baryons in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
• Lowest-lying octet baryon masses in covariant baryon chiral perturbation theory
• SU(3) flavor symmetry considerations for the $\bar{K}N$ coupled channels system