Speaker
Dominik Stamen
(B)
Description
We provide a dispersion-theoretical representation
of the reaction amplitudes $\gamma K\to K\pi$ 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 $K^∗(892)$ resonances, thereby providing
a model-independent framework for future analyses of
high-precision kaon Primakoff data.
Primary author
Dominik Stamen
(B)
Co-authors
Dr
Bastian Kubis
(Bonn University)
Maximilian Dax
(Bonn University)
