Near threshold kaon-kaon interaction in the reactions e+ e- --> K+ K- gamma and e+ e- --> K0 K0bar gamma

TL;DR

This paper develops a theoretical model to analyze the strong interactions between kaon pairs in radiative phi meson decays, providing predictions for cross sections and branching fractions.

Contribution

The paper introduces a new theoretical framework for studying kaon-kaon interactions in phi meson radiative decays, including effective mass dependence and cross section calculations.

Findings

Derived differential cross sections for K+ K- and K0 K0bar in phi decays.

Calculated total cross sections and branching fractions for the processes.

Provided insights into strong meson interactions via radiative decay channels.

Abstract

Strong interactions between pairs of the K+ K- and K0 K0bar mesons can be studied in radiative decays of phi(1020) mesons. We present a theoretical model of the reactions e+ e- --> phi --> K+ K- gamma and e+ e- --> phi --> K0 K0bar gamma. The K+ K- and K0 K0bar effective mass dependence of the differential cross sections is derived. The total cross sections and the branching fractions for the two radiative phi decays are calculated.