Author/Authors :
M Loewe، نويسنده , , P Alexa، نويسنده , , T Czosnyka، نويسنده , , J de Boer، نويسنده , , J. Iwanicki، نويسنده , , A.I Levon، نويسنده , , H.J. Maier، نويسنده , , P.J Napiorkowski، نويسنده , , P. Von Neumann-Cosel، نويسنده , , A Richter، نويسنده , , C Schlegel، نويسنده , , G Sletten، نويسنده , , J. Srebrny، نويسنده , , Wurkner، M. نويسنده ,
Abstract :
Collective structures in 180Ta built on the meta-stable Kπ=9− high-spin isomer were investigated using two types of Coulomb excitation experiments. In-beam studies identify γ-vibrational bands with typical bandhead E2 excitation strengths of 6 Weisskopf units (W.u.). Coulomb activation of the 180Ta ground state was measured with 36S and 64Ni projectiles using thin targets. The excitation functions and the 180Ta recoil angular distributions favor a Kπ=7+ octupole vibration at Ex=1155(40) keV as intermediate state in the population of the ground state.
