On the consistency of recent QCD lattice data of the baryon ground-state masses

Abstract

In our recent analysis of lattice data of the BMW, LHPC and PACS-CS groups we determined a parameter set of the chiral Lagrangian that allows a simultaneous description of the baryon octet and decuplet masses as measured by those lattice groups. The results on the baryon spectrum of the HSC group were recovered accurately without their inclusion into our 6 parameter fit. We show that the same parameter set provides an accurate reproduction of the recent results of the QCDSF-UKQCD group probing the baryon masses at quite different quark masses. This shows a remarkable consistency amongst the different lattice simulations. With even more accurate lattice data in the near future it will become feasible to determine all low-energy parameters relevant at N${}^3$LO.

7 pages, 2 figures

References in corpus (8)

• Ab-initio Determination of Light Hadron Masses
• First results from 2+1 dynamical quark flavors on an anisotropic lattice: light-hadron spectroscopy and setting the strange-quark mass
• Light hadron spectroscopy using domain wall valence quarks on an Asqtad sea
• Chiral dynamics of the S11(1535) and S11(1650) resonances revisited
• Nucleon mass: from lattice QCD to the chiral limit
• The lowest-lying baryon masses in covariant SU(3)-flavor chiral perturbation theory
• Aspects of meson-baryon scattering in three- and two-flavor chiral perturbation theory
• Large-N_c operator analysis of 2-body meson-baryon counterterms in the chiral Lagrangian

Cited by in corpus (14)

• The Scalar Strange Content of the Nucleon from Lattice QCD
• Octet baryon masses in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
• The nucleon mass and pion-nucleon sigma term from a chiral analysis of lattice QCD world data
• 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
• Virtual decuplet effects on octet baryon masses in covariant baryon chiral perturbation theory
• Chiral extrapolation of baryon mass ratios
• Consistency between SU(3) and SU(2) chiral perturbation theory for the nucleon mass
• 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
• Low-energy constants in the chiral Lagrangian with baryon octet and decuplet fields from Lattice QCD data on CLS ensembles
• Quark mass dependence of the ground-state octet baryons in next-to-next-to-next-to-leading order covariant baryon chiral perturbation theory
• Chiral extrapolations and strangeness in the baryon ground states