K3π Decays in Chiral Perturbation Theory
Johan Bijnens, Pierre Dhonte, Fredrik Persson
Abstract
The CP conserving amplitudes for the decays K3π 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 K2π and K3π data to obtain a fit of the parameters that occur. We compare with the work of Kambor, Missimer and Wyler.
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