Associated strangeness production at COSY-TOF

Abstract

The associated strangeness production in elementary reactions like pp→KYN close to reaction thresholds is one of the main topics to be investigated at the Time-of-Flight spectrometer TOF located at the Cooler Synchrotron COSY (FZ Jülich). The concept of the event reconstruction is based on the identification of the delayed hyperon and kaon decay (Λ→pπ−, Σ+→pπ0, nπ+ and Ks0→π+π−). Since the highly granulated detector covers almost the full phase space all differential distributions as well as total cross sections and the hyperon polarization can be extracted from the data.