Testing Chiral Symmetry Breaking at DAPHNE

Abstract

The spontaneous breakdown of the chiral symmetry of the QCD Lagrangian ensures that $\pi \pi$ interactions are weak at low energies. How weak depends on the nature of explicit symmetry breaking. Measurements of $K_{e4}$ decays at DA$\Phi$NE will provide a unique insight into this mechanism and test whether the $q\overline{q}$--condensate is large or small.

14 pages, LaTeX, to be published in the Proceedings of the DAPHCE Workshop, held at Frascati, November 1996

Cited by in corpus (7)

• Polarizability of the Nucleon and Compton Scattering
• Dynamical chiral symmetry breaking and a critical mass
• Meson-Meson Scattering in the Quark Model: Spin Dependence and Exotic Channels
• Swimming with Quarks
• Dispersion theory of nucleon Compton scattering and polarizabilities
• Low-energy photon-photon fusion into three pions in Generalized Chiral Perturbation Theory
• The decay tau -> 3 pi + nu(tau) as a probe of the mechanism of dynamical chiral symmetry breaking