Naslov
γ-ray spectroscopy of low-lying excited states and shape competition in 194^Os

Autori
Daniel, T. ; Kisyov, S. ; Regan, P. H. ; Marginean, N. ; Podolyák, Zs. ; Marginean, R. ; Nomura, K. ; Rudigier, M. ; Mihai, R. ; Werner, V. ; Carroll, R. J. ; Gurgi, L. A. ; Oprea, A. ; Berry, T. ; Serban, A. ; Nita, C. R. ; Sotty, C. ; Suvaila, R. ; Turturica, A. ; Costache, C. ; Stan, L. ; Olacel, A. ; Boromiza, M. ; Toma, S.

Izvornik
Physical review. C (2469-9985) 95 (2017), 2; 024328, 9

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
γ -ray spectroscopy ; excited states

Sažetak
The properties of excited states in the neutron-rich nucleus 194Os have been investigated using the 192Os(18O , 16O) 194Os reaction with an 80 MeV beam provided by the IFIN-HH Laboratory, Bucharest. Discrete γ -ray decays from excited states have been measured using the hybrid HPGe-LaBr3(Ce) array RoSPHERE. The current work identifies a number of previously unreported low-lying nonyrast states in 194Os as well as the first measurement of the half-life of the yrast 2+ state of 302(50) ps. This is equivalent to a B(E2:2+ → 0+) = 45(16) W.u. and intrinsic quadrupole deformation of βeff = 0.14(1). The experimental results are compared with Hartree-Fock- Bogoliubov–interacting-boson-model calculations and are consistent with a reduction in a quadrupole collectivity in Os isotopes with increasing neutron number

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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