Centrifugal stretching from lifetime measurements in the 170Hf ground state band
Artikel i vetenskaplig tidskrift, 2013
Centrifugal stretching in the deformed rare-earth nucleus 170Hf is investigated using high-precision lifetime measurements, performed with the New Yale Plunger Device at Wright Nuclear Structure Laboratory, Yale University. Excited states were populated in the fusion-evaporation reaction 124Sn(50Ti,4n)170Hf at a beam energy of 195 MeV. Recoil distance doppler shift data were recorded for the ground state band through the J=16+ level. The measured B(E2) values and transition quadrupole moments improve on existing data and show increasing β deformation in the ground state band of 170Hf. The results are compared to descriptions by a rigid rotor and by the confined β-soft rotor model. © 2013 American Physical Society.
Författare
M.K. Smith
V. Werner
J.R. Terry
N. Pietralla
P. Petkov
Z. Berant
R.J. Casperson
Andreas Martin Heinz
Chalmers, Teknisk fysik, Subatomär fysik
G. Henning
R. Lüttke
J. Qian
B. Shoraka
G.I. Rainovski
E.S. Williams
R.P. Winkler
Physical Review C - Nuclear Physics
24699985 (ISSN) 24699993 (eISSN)
Vol. 87 4Ämneskategorier
Subatomär fysik
Fundament
Grundläggande vetenskaper
DOI
10.1103/PhysRevC.87.044317