Mixed-symmetry octupole and hexadecapole excitations in N=52 isotones

In addition to the well-established quadrupole mixed-symmetry states, octupole and hexadecapole excitations with mixed-symmetry character have been recently proposed for the N = 52 isotones 92Zr and 94Mo. We performed two inelastic proton-scattering experiments to study this kind of excitations in the heaviest stable N = 52 isotone 96Ru. From the combined experimental data of both experiments absolute transition strengths were extracted

Investigation of the γ-decay behavior of ⁵²Cr with the γ³ setup at HIγS

The γ-ray strength function is an important input parameter for the calculation of nucleosynthesis processes. To study the dipole response in more detail, the γ-decay behavior of the fp shell nucleus ⁵²Cr was investigated with the high-efficiency γ³ setup at the High Intensity γ-ray Source facility at TUNL in Durham, USA. The highly intense quasi mono-energetic γ-ray beam allows for excitations selective in multipolarity (J=1 and J=2) and energy. The γ³ setup is a multi-detector array consisting of HPGe and LaBr₃ detectors with high efficiency and enables the measurement of γ-γ coincidences. Experimental results of ⁵²Cr will be presented and discussed in this contribution