Shedding New Light on Kaon-Nucleon/Nuclei Interaction and Its Astrophysical Implications with the AMADEUS Experiment at DAFNE

TL;DR

The AMADEUS experiment investigates low-energy kaon-nuclei interactions at DAFNE to understand strangeness in QCD and its astrophysical implications, focusing on potential bound states and dense baryonic matter formation.

Contribution

This study provides the first results on the { extSigma}0-p channel from reanalyzed KLOE data, exploring possible deeply bound kaonic states and their relevance to astrophysics.

Findings

Analysis of K- absorption in various nuclei

Identification of the { extSigma}0-p channel signals

Statistical assessment of potential bound states

Abstract

The AMADEUS experiment deals with the investigation of the low-energy kaon-nuclei hadronic interaction at the DA{\Phi}NE collider at LNF-INFN, which is fundamental to respond longstanding questions in the non-perturbative QCD strangeness sector. The antikaon-nucleon potential is investigated searching for signals from possible bound kaonic clusters, which would open the possibility for the formation of cold dense baryonic matter. The confirmation of this scenario may imply a fundamental role of strangeness in astrophysics. AMADEUS step 0 consisted in the reanalysis of 2004/2005 KLOE dataset, exploiting K- absorptions in H, 4He, 9Be and 12C in the setup materials. In this paper, together with a review on the multi-nucleon K- absorption and the particle identification procedure, the first results on the {\Sigma}0-p channel will be presented including a statistical analysis on the possible accomodation of a deeply bound state