Speaker
Description
Octupole deformation can be inferred in even-even nuclei by two signatures: the presence of low-lying negative parity states and strong E3 transition strengths. In odd nuclei, this deformation gives rise to opposite parity doublets.
The aim of this experiment is to exploit the potentiality of the AGATA + PRISMA setup, implemented with an array of fast scintillators, to identify the collective states in 226Th, 228,230U populated using multi-nucleon transfer reactions. The proposed reaction is the 129Xe + 232Th at 950 MeV of beam energy. It is also important to highlight here the relevance of the measurements of E3 moments with on-going searches for non-zero Electric Dipole Moments (EDMs) in atoms with odd-A nuclei, whose observation would indicate CP violation much larger than that predicted by the Standard Model. Octupole-deformed nuclei have enhanced nuclear Schiff moments that induce the atomic EDM due to the presence of nearly degenerate parity doublets and large reflection-asymmetric octupole deformations
