Home | << 1 >> |
Record | |||||
---|---|---|---|---|---|
Author | AGATA Collaboration (John, P.R. et al); Gadea, A. | ||||
Title | Shape evolution in the neutron-rich osmium isotopes: Prompt gamma-ray spectroscopy of Os-196 | Type | Journal Article | ||
Year | 2014 | Publication | Physical Review C | Abbreviated Journal | Phys. Rev. C |
Volume | 90 | Issue | 2 | Pages | 021301 - 6pp |
Keywords | |||||
Abstract | The shape transition in the neutron-rich Os isotopes is studied by investigating the neutron-rich Os-196 nucleus through in-beam gamma-ray spectroscopy using a two-proton transfer reaction from a Pt-198 target to a Se-82 beam. The beam-like recoils were detected and identified with the large-acceptance magnetic spectrometer PRISMA, and the coincident gamma rays were measured with the advanced gamma tracking array (AGATA) demonstrator. The de-excitation of the low-lying levels of the yrast-band of Os-196 were identified for the first time. The results are compared with state-of-the-art beyond-mean-field calculations, performed for the even-even Os188-198 isotopes. The new results suggest a smooth transition in the Os isotopes from a more axial rotational behavior towards predominately vibrational nuclei through triaxial configurations. An almost perfect gamma-unstable/triaxial rotor yrast band is predicted for Os-196 which is in agreement with the experimentally measured excited states. | ||||
Address | [John, P. R.; Mengoni, D.; Lunardi, S.; Gottardo, A.; Lenzi, S.; Menegazzo, R.; Michelagnoli, C.; Molini, P.; Montagnoli, G.; Montanari, D.; Recchia, F.; Scarlassara, F.] Univ Padua, Dipartimento Fis & Astron, I-35131 Padua, Italy, Email: philipp.john@pd.infn.it | ||||
Corporate Author | Thesis | ||||
Publisher | Amer Physical Soc | Place of Publication | Editor | ||
Language | English | Summary Language | Original Title | ||
Series Editor | Series Title | Abbreviated Series Title | |||
Series Volume | Series Issue | Edition | |||
ISSN | 0556-2813 | ISBN | Medium | ||
Area | Expedition | Conference | |||
Notes | WOS:000341105200001 | Approved | no | ||
Is ISI | yes | International Collaboration | yes | ||
Call Number | IFIC @ pastor @ | Serial | 1909 | ||
Permanent link to this record |