Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with $J^P=0^{-}$

G. D. Alexeev, M. G. Alexeev, C. Alice +160

We measured the strange-meson spectrum in the scattering reaction $K^{-}+p\to K^{-}{\pi }^{-}{\pi }^{-}+p$ with the COMPASS spectrometer at CERN. Using the world's largest sample of…