Cross section limits for the 248 Cm ( 25 Mg , 4 n – 5 n ) 268 , 269 Hs reactions

J. Dvorak,1,* W. Brüchle,2 Ch. E. Düllmann,2 Z. Dvorakova,1,† K. Eberhardt,3 R. Eichler,4 E. Jäger,2 Y. Nagame,5 Z. Qin,6 M. Schädel,2 B. Schausten,2 E. Schimpf,2 R. Schuber,1 A. Semchenkov,1,2,‡ P. Thörle,3 A. Türler,1 M. Wegrzecki,7 and A. Yakushev1 1Technische Universität München, D-85748 Garching, Germany 2GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany 3Universität Mainz, D-55128 Mainz, Germany 4Paul Scherrer Institut, CH-5232 Villigen, Switzerland 5Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan 6Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People’s Republic of China 7Institute of Electron Technology, PL-02-668 Warsaw, Poland (Received 3 December 2008; published 23 March 2009)