Study of kaonic final states in pi-p at 190 GeV

Abstract

We discuss the status of analyses of data recorded in the 2008 and 2009 runs of the COMPASS experiment at CERN with sepcific focus on final states with $K^0_S K^0_S pi^-$ and $K^_s16K^-pi^-$ produced in $pi^-(190,textrm{GeV})p$ scattering. The interest in such final states is motivated by a summary of some of the relevant literature. We also show first results from the analysis of diffractively produced $Kbar Kpi$ states. Two prominent three-body structures, one around $1.8,GeV$, the other at $2.2,GeV$ decaying via known $Kbar K$ and $Kpi$ states are seen.