The WASA Detector Facility at CELSIUS
  The WASA 4pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is presented. A detailed description of the design, together with the anticipated and achieved performance parameters are given. 
Chr. Bargholtz, M. Bashkanov, M. Ber{\l}owski, A. Bondar, D.   Bogoslawsky, W. Brodowski, J. Brudvik, H. Cal\'en, F. Capella...