The chiral limit of QCD and above

Abstract

I review aspects of chiral dynamics pertinent to the structure of baryons and few-nucleon systems, such as chiral extrapolations for the nucleon and the delta mass, double pion photoproduction off protons, single neutral pion electroproduction off the deuteron, pion photoproduction in the delta region, the quark mass dependence of the nuclear forces and the possibility of an infrared limit cycle in QCD.

arXiv comment10 pages, 5 figures, plenary talk at BARYONS 2004, Paris, Oct. 25-29, to be published in the proceedings

References in corpus (39)

• Universality in Few-body Systems with Large Scattering Length
• Chiral Dynamics in Nucleons and Nuclei
• The two-nucleon system at next-to-next-to-next-to-leading order
• Renormalization of the Three-Body System with Short-Range Interactions
• The QCD spectrum with three quark flavors
• Heavy Baryon Chiral Perturbation Theory with Light Deltas
• Effective Theory of the Triton
• Chiral expansion of baryon masses and $\sigma$-terms
• Hadron Scattering Lengths in Lattice QCD
• Nuclear forces in the chiral limit
• Pion-nucleon scattering inside the Mandelstam triangle
• Pion-nucleon scattering in chiral perturbation theory II: Fourth order calculation
• Low energy analysis of pi N --> pi N
• Improving the convergence of the chiral expansion for nuclear forces II: low phases and the deuteron
• Variation of Fundamental Couplings and Nuclear Forces
• Resonance saturation for four-nucleon operators
• Chiral unitary meson-baryon dynamics in the presence of resonances: Elastic pion-nucleon scattering
• An Infrared Renormalization Group Limit Cycle in QCD
• The reaction $\pi N\to \pi \pi N$ at threshold in chiral perturbation theory
• Chiral extrapolations of baryon masses for unquenched three-flavor lattice simulations
• Cutoff schemes in chiral perturbation theory and the quark mass expansion of the nucleon mass
• Neutral pion photoproduction on deuterium in baryon chiral perturbation theory to order q^4
• Test of low-energy theorems for p(\vec{gamma},π^{0})p in the threshold region
• Infrared regularization with spin-3/2 fields
• Octet Baryon Masses in Partially Quenched Chiral Perturbation Theory
• Decuplet Baryon Masses in Partially Quenched Chiral Perturbation Theory
• The $\sigma$ meson in a nuclear medium through two pion photoproduction
• One-loop analysis of the reaction pi N to pi pi N
• Threshold Two-Pion Photo- and Electroproduction: More neutrals than expected
• Double ${\pi }^0$ Photoproduction off the Proton at Threshold
• A Derivative of the Gerasimov-Drell-Hearn Sum Rule
• The reaction $\pi N\to \pi \pi N$ above threshold in chiral perturbation theory
• Improved analysis of neutral pion electroproduction off deuterium in chiral perturbation theory
• Double neutral pion photoproduction at threshold
• The Fubini-Furlan-Rossetti Sum Rule Revisited
• Near threshold neutral pion electroproduction on deuterium in chiral perturbation theory
• Coherent π^0 threshold production from the deuteron at Q^2 = 0.1 GeV^2/c^2
• SU(3) Chiral Effective Field Theories -- A Status Report --
• Chiral dynamics with strange quarks

Cited by in corpus (3)

• Towards a theory of hadron resonances
• Chiral Extrapolations and the Covariant Small Scale Expansion
• Strong Isospin Breaking in the Nucleon and Delta Masses on the Lattice