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arXiv · hep-ph/9612417

Testing Chiral Symmetry Breaking at DAPHNE

M. R. Pennington
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Abstract

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

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M. R. Pennington. 1996-12-19. Testing Chiral Symmetry Breaking at DAPHNE. https://doi.org/10.1016/s0375-9474(97)00438-7

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