AbstractWe provide a dispersion-theoretical representation of the reaction amplitudes $$\gamma K\rightarrow K \pi $$
γ
K
→
K
π
in all charge channels, based on modern pion–kaon P-wave phase shift input. Crossed-channel singularities are fixed from phenomenology as far as possible. We demonstrate how the subtraction constants can be matched to a low-energy theorem and radiative couplings of the $$K^*(892)$$
K
∗
(
892
)
resonances, thereby providing a model-independent framework for future analyses of high-precision kaon Primakoff data.
Dispersive analysis of glueball masses
