Institution: | 1.Ruhr-Universit?t Bochum, Institut für Theoretische Physik II, D-44870 Bochum, Germany,DE;2.Department of Physics, University of Arizona, Tucson, AZ 85721, USA,US;3.Department of Physics, Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobata, Kitakyushu 804-8550, Japan,JP;4.Forschungszentrum Jülich, Institut für Kernphysik (Theorie), D-52425 Jülich, Germany,DE;5.Jagiellonian University, Institut of Physics, Reymonta 4, 30-059 Cracow, Poland,PL |