Chiral Extrapolation: An Analogy with Effective Field Theory

Abstract

We draw an analogy between the chiral extrapolation of lattice QCD calculations from large to small quark masses and the interpolation between the large mass (weak field) and small mass (strong field) limits of the Euler--Heisenberg QED effective action. In the latter case, where the exact answer is known, a simple extrapolation of a form analogous to those proposed for the QCD applications is shown to be surprisingly accurate over the entire parameter range.

6 pp, revtex, 3 figs; minor changes -- version to appear in PLB

References in corpus (2)

• Chiral extrapolation of lattice moments of proton quark distributions
• Analytic results for the effective action

Cited by in corpus (10)

• Nucleon Electromagnetic Form Factors
• Chiral Analysis of Quenched Baryon Masses
• Nucleon electromagnetic form factors on the lattice and in chiral effective field theory
• Status on nucleon electromagnetic form factors
• Chiral Extrapolation of Hadronic Observables
• Calculation of QCD Instanton Determinant with Arbitrary Mass
• Two-loop self-dual Euler-Heisenberg Lagrangians (II): Imaginary part and Borel analysis
• Spin and orbital angular momentum of the proton
• Chiral extrapolation of the charged-pion magnetic polarizability with Padé approximant
• Overview of nucleon structure studies