Access to the kaon radius with kaonic atoms

TL;DR

This paper proposes a method to determine the kaon radius by analyzing spectral data from kaonic atoms, considering various physical effects, and explores extracting related parameters like kaon mass and nuclear radii.

Contribution

It introduces a novel approach to measure the kaon radius using atomic spectra, accounting for multiple physical effects and demonstrating potential for extracting other fundamental parameters.

Findings

Sensitivity of transition energies to kaon size analyzed

Method accounts for finite-nuclear and kaon sizes, recoil, and QED effects

Potential to extract kaon mass and nuclear radii from spectra

Abstract

We put forward a method for determination of the kaon radius from the spectra of kaonic atoms. We analyze the few lowest transitions and their sensitivity to the size of the kaon for ions in the nuclear charge range Z = 1 - 100, taking into account finite-nuclear-size, finite-kaon-size, recoil and leading-order quantum-electrodynamic effects. Additionally, the opportunities of extracting the kaon mass and nuclear radii are demonstrated by examining the sensitivity of the transition energies in kaonic atoms.