Bonn 2010 – wissenschaftliches Programm
HK 66.4: Vortrag
Freitag, 19. März 2010, 15:15–15:30, HG V
Isomer spectroscopy of 125,127Cd — •F. Naqvi1,2, M. Górska2, L. Cáceres2,3, A. Jungclaus3, M. Pfützner4, H. Grawe2, S. Pietri2, P.H Regan5, D. Rudolf6, and Z. Podolyák5 — 1Institut für kernphysik, Universitat zu Köln, Germany — 2GSI, Helmholtzzentrum für Scwerionenforschung, Darmstadt, Germany — 3Departmento de fisicia Teórica, Universidad Autonóma de Madrid , Spain — 4IEP,Warsaw University, Warsaw — 5Department of Physics, University of Surrey, Guildford ,UK — 6Department of Physics, Lund University, Sweden
The results of investigations of isomeric decay in odd mass heavy Cd isotopes namely 125,127Cd will be reported. To date information has been obtained on even mass heavy Cd isotopes and the sytematics show evolution of single particle energies for them. The experiment was performed at GSI, Darmstadt to investigate the single particle level structure of odd mass heavy Cd isotopes . Nuclei of interest were produced in fragmentation reaction of 136Xe beam at energy 750MeV/u on a 9Be target of 4g/cm2 thickness. Selection of ions from unwanted reaction products and event by event identification was facilitated by FRagment Separator (FRS). Isomers populated in the reaction were implanted in a plastic catcher surrounded by 15 Ge cluster detectors from RISING array to detect gamma radiations. Level scemes based on the intensity balance and life time information were constructed for the first time for these nuclei. Comparison of the experimental results with shell model calculation will be discussed.