Kaonic Nuclear Systems KbarN and KbarNN as Decaying States

TL;DR

This paper investigates the formation spectra of kaonic nuclear systems KbarN and KbarNN via (K-, n) reactions, emphasizing that observable states like K-pp are decaying states distinct from pole solutions, aiding experimental interpretation.

Contribution

It provides a theoretical framework distinguishing decaying states from pole states in kaonic nuclear systems, enhancing understanding of experimental data interpretation.

Findings

K-pp should be regarded as a decaying state, not a pole state.

Formation spectra analysis clarifies the nature of kaonic nuclear states.

Theoretical basis aids in interpreting experimental data on kaonic nuclei.

Abstract

The formation spectra of model KbarN and KbarNN systems formed by (K-, n) reactions are investigated in order to obtain a theoretical basis for a proper interpretation of experimental data concerning kaonic nuclear quasi-bound states. It has been clarified that the experimentally observable kaonic nuclear state K-pp should be regarded as the decaying state introduced by Kapur-Peierls, which is different from the pole state solution of the Faddeev equation.