Details

Autor(en) / Beteiligte

• Petkov, P
• Gladnsihki, K A
• Dewald, A
• Fransen, C
• Hackstein, M
• Jolie, J
• Pissulla, Th
• Rother, W
• Zell, K O

Titel

182Pt as a possible candidate for X(5) symmetry

Ist Teil von

• Journal of physics. Conference series, 2012, Vol.366 (1)

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2012

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Recently, a new island of X(5) nuclei has been suggested around A=180 exemplified by some Osmium isotopes. To investigate the limits of its region, a Recoil-distance Doppler shift lifetime measurement has been performed for 182Pt. For the data analysis, the Differential decay curve method has been applied in a newly developed version convenient for low recoil velocities and a non-negligible fraction of nuclei stopped already in the target. The level energies and the newly deduced transition quadrupole moments in the yrast band reveal the persistence of X(5) features in the investigated nucleus, but other spectroscopic data and IBM and GCM calculations indicate shape coexistence and a position of 182Pt close but not at the critical point of the shape-transition.