Study of kaonic final states in $\pi^-p$ at $190\,\textrm{GeV}$

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 $K^+K^-\pi^-$ 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 $K\bar K\pi$ states. Two prominent three-body structures, one around $1.8\,\GeV$, the other at $2.2\,\GeV$ decaying via known $K\bar K$ and $K\pi$ states are seen.