J an 2 00 9 Double-Pionic Fusion of Nuclear Systems and the ABC Effect — Approaching a Puzzle by Kinematically Complete Measurements

M. Bashkanov, C. Bargholtz, M. Ber lowski, D. Bogoslawsky, H. Calén, H. Clement, L. Demiroers, E. Doroshkevich, D. Duniec, C. Ekström, K. Fransson, L. Geren L. Gustafsson, B. Höistad, G. Ivanov, M. Jacewicz, E. Jiganov, T. Johansson, O. Khakimova, S. Keleta, I. Koch, F. Kren, S. Kullander, A. Kupść, K. Lindberg, P. Marciniewski, R. Meier, B. Morosov, C. Pauly, H. Pettersson, Y. Petukhov, A. Povtorejko, A. Pricking, R.J.M.Y. Ruber, K. Schönning, W. Scobel, B. Shwartz, T. Skorodko, V. Sopov, J. Stepaniak, P.-E. Tegner, P. Thörngren-Engblom, V. Tikhomirov, A. Turowiecki, G.J. Wagner, M. Wolke, J. Zabierowski, I. Zartova, J. Z lomanczuk 1 Physikalisches Institut der Universität Tübingen, D-72076 Tübingen, Germany 2 Joint Institute for Nuclear Research, Dubna, Russia 3 The Svedberg Laboratory, Uppsala, Sweden 4 Uppsala University, Uppsala,Sweden 5 Hamburg University, Hamburg, Germany 6 Soltan Institute of Nuclear Studies, Warsaw and Lodz, Poland 7 Forschungszentrum Jülich, Germany 8 Budker Institute of Nuclear Physics, Novosibirsk, Russia 9 Institute of Experimental Physics, Warsaw, Poland 10 Institute of Theoretical and Experimental Physics, Moscow, Russia 11 Department of Physics, Stockholm University, Stockholm, Sweden