Low-energy QCD

After a brief introduction to chiral perturbation theory, the effective field theory of the standard model at low energies, two recent applications are reviewed: elastic pion-pion scattering to two-loop accuracy and the complete renormalized pion-nucleon Lagrangian to

O(p^3)

in the chiral expansion.

Note:

14 pages, Latex, 1 figure in uuencoded postscript file embedded with epsfig.sty. To appear in Proc. of Int. School of Nuclear Physics, Erice, Sept. 1995, Progr. Part. Nucl. Phys., vol. 36

talk
quantum chromodynamics
energy: low
perturbation theory: chiral
effective Lagrangian: chiral
pi pi: elastic scattering
elastic scattering: pi pi
perturbation theory: higher-order
pi nucleon: interaction
interaction: pi nucleon

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