Centrifugal stretching from lifetime measurements in the 170Hf ground state band

M. K. Smith; V. Werner; J. R. Terry; N. Pietralla; P. Petkov; Z. Berant; R. J. Casperson; A. Heinz; G. Henning; R. Lüttke; J. Qian; B. Shoraka; G. Rainovski; E. Williams; R. Winkler

doi:10.1103/PhysRevC.87.044317

Centrifugal stretching from lifetime measurements in the 170Hf ground state band

M. K. Smith^*, V. Werner, J. R. Terry, N. Pietralla, P. Petkov, Z. Berant, R. J. Casperson, A. Heinz, G. Henning, R. Lüttke, J. Qian, B. Shoraka, G. Rainovski, E. Williams, R. Winkler

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

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.

Original language	English
Article number	044317
Journal	Physical Review C - Nuclear Physics
Volume	87
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevC.87.044317
Publication status	Published - 11 Apr 2013
Externally published	Yes

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Smith, M. K., Werner, V., Terry, J. R., Pietralla, N., Petkov, P., Berant, Z., Casperson, R. J., Heinz, A., Henning, G., Lüttke, R., Qian, J., Shoraka, B., Rainovski, G., Williams, E., & Winkler, R. (2013). Centrifugal stretching from lifetime measurements in the 170Hf ground state band. Physical Review C - Nuclear Physics, 87(4), Article 044317. https://doi.org/10.1103/PhysRevC.87.044317

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title = "Centrifugal stretching from lifetime measurements in the 170Hf ground state band",

abstract = "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.",

author = "Smith, {M. K.} and V. Werner and Terry, {J. R.} and N. Pietralla and P. Petkov and Z. Berant and Casperson, {R. J.} and A. Heinz and G. Henning and R. L{\"u}ttke and J. Qian and B. Shoraka and G. Rainovski and E. Williams and R. Winkler",

year = "2013",

month = apr,

day = "11",

doi = "10.1103/PhysRevC.87.044317",

language = "English",

volume = "87",

journal = "Physical Review C - Nuclear Physics",

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Smith, MK, Werner, V, Terry, JR, Pietralla, N, Petkov, P, Berant, Z, Casperson, RJ, Heinz, A, Henning, G, Lüttke, R, Qian, J, Shoraka, B, Rainovski, G, Williams, E & Winkler, R 2013, 'Centrifugal stretching from lifetime measurements in the 170Hf ground state band', Physical Review C - Nuclear Physics, vol. 87, no. 4, 044317. https://doi.org/10.1103/PhysRevC.87.044317

TY - JOUR

T1 - Centrifugal stretching from lifetime measurements in the 170Hf ground state band

AU - Smith, M. K.

AU - Werner, V.

AU - Terry, J. R.

AU - Pietralla, N.

AU - Petkov, P.

AU - Berant, Z.

AU - Casperson, R. J.

AU - Heinz, A.

AU - Henning, G.

AU - Lüttke, R.

AU - Qian, J.

AU - Shoraka, B.

AU - Rainovski, G.

AU - Williams, E.

AU - Winkler, R.

PY - 2013/4/11

Y1 - 2013/4/11

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84877075127&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.87.044317

DO - 10.1103/PhysRevC.87.044317

M3 - Article

SN - 0556-2813

VL - 87

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 4

M1 - 044317

ER -

Centrifugal stretching from lifetime measurements in the 170Hf ground state band

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