$K\to3π$ Decays in Chiral Perturbation Theory

Details $K\to3π$ Decays in Chiral Perturbation Theory $K\to3π$ Decays in Chiral Perturbation Theory

2002-05-30

arxiv.org/abs/hep-ph/0205341v2

Nucl.Phys. B648 (2003) 317-344

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, uses axodraw.sty, some misprints corrected. Short discussion on isospin breaking and final state interaction added

Scientific paper

10.1016/S0550-3213(02)00970-7

The CP conserving amplitudes for the decays $K\to3\pi$ are calculated in Chiral Perturbation Theory at the next-to-leading order. We present the expressions in a compact form with single parameter functions only. These expressions are then fitted to all available $K\to2\pi$ and $K\to3\pi$ data to obtain a fit of the parameters that occur. We compare with the work of Kambor, Missimer and Wyler.

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