Active target-detector with scintillating fibers for hyperon-proton scattering

An active target with scintillating fibers has been developed and construct ed. This target-detector is designed for measurements of hyperon-proton sca ttering for hyperon moments of several hundred MeV/c. The detector serves a s a production target of hyperons as well as a hyperon scattering target on hydrogen. It works as a 4 pi -detector for the production, scattering, and decay of charged particles in the target region. A spectrometer system for an incident beam and outgoing particles is linked with this target-detecto r in order to produce triggers for the imaging device. Reactions inside the fiducial volume of the detector are reconstructed kinematically by using i mage data together with spectrometer information. (C) 2001 Elsevier Science B.V. All rights reserved.