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Title: Lifetime measurements of yrast states in 162Yb and 166Hf

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Clark University
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
898324
Report Number(s):
DOE/ER/40417-212
DOE Contract Number:
FG02-88ER40417
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review C; Journal Volume: 73
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

E. A. McCutchan, N. V. Zamfir, R. F. Casten, H. Ai, H. Amro, M. Babilon, D. S. Brenner, G. Gürdal, A. Heinz, R. O. Hughes, D. A. Meyer, C. Plettner, J. Qian, J. J. Ressler, N. J. Thomas, V. Werner, E. Williams, and and R. Winkler. Lifetime measurements of yrast states in 162Yb and 166Hf. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.034303.
E. A. McCutchan, N. V. Zamfir, R. F. Casten, H. Ai, H. Amro, M. Babilon, D. S. Brenner, G. Gürdal, A. Heinz, R. O. Hughes, D. A. Meyer, C. Plettner, J. Qian, J. J. Ressler, N. J. Thomas, V. Werner, E. Williams, & and R. Winkler. Lifetime measurements of yrast states in 162Yb and 166Hf. United States. doi:10.1103/PhysRevC.73.034303.
E. A. McCutchan, N. V. Zamfir, R. F. Casten, H. Ai, H. Amro, M. Babilon, D. S. Brenner, G. Gürdal, A. Heinz, R. O. Hughes, D. A. Meyer, C. Plettner, J. Qian, J. J. Ressler, N. J. Thomas, V. Werner, E. Williams, and and R. Winkler. Thu . "Lifetime measurements of yrast states in 162Yb and 166Hf". United States. doi:10.1103/PhysRevC.73.034303.
@article{osti_898324,
title = {Lifetime measurements of yrast states in 162Yb and 166Hf},
author = {E. A. McCutchan and N. V. Zamfir and R. F. Casten and H. Ai and H. Amro and M. Babilon and D. S. Brenner and G. Gürdal and A. Heinz and R. O. Hughes and D. A. Meyer and C. Plettner and J. Qian and J. J. Ressler and N. J. Thomas and V. Werner and E. Williams and and R. Winkler},
abstractNote = {},
doi = {10.1103/PhysRevC.73.034303},
journal = {Physical Review C},
number = ,
volume = 73,
place = {United States},
year = {Thu Mar 09 00:00:00 EST 2006},
month = {Thu Mar 09 00:00:00 EST 2006}
}
  • We report on the measurement of lifetimes and magnetic moments of yrast states in /sup 134/Nd and /sup 136/Nd. Lifetimes in the 10--100 ps range were measured via the recoil distance Doppler shift method applied to the reactions /sup 110/Pd(/sup 28,30/Si,4n) at 120--125 MeV beam energy. Magnetic moments of the 21 state in /sup 134/Nd and the 10 and 12 yrast states in /sup 136/Nd were deduced from the integral Larmor precessions measured after recoil implantation in a magnetized nickel foil, via the reactions /sup 76/Ge(/sup 62,64/Ni,4n). The 10 backbending state in /sup 136/Nd results from h/sub 11/2/ proton (twomore » quasiparticle) alignment. The paramagnetic relaxation time of Nd in nickel was measured by Coulomb excitation and implantation of /sup 148/Nd(21 ).« less
  • Lifetime measurements of yrast levels in {sup 162}Yb and {sup 166}Hf were performed using the recoil distance Doppler-shift method in coincidence mode. Excited states in {sup 162}Yb and {sup 166}Hf were populated via the reactions {sup 116}Cd({sup 50}Ti, 4n) and {sup 122}Sn({sup 48}Ti, 4n), respectively. The resulting B(E2) values are compared with the X(5) critical point model predictions and interacting boson approximation (IBA) model calculations. The X(5) model provides a reasonable description of the yrast B(E2) values in {sup 166}Hf, whereas the IBA fails to reproduce the transition strengths from the higher spin levels. In {sup 162}Yb, some transitions agreemore » with the X(5) predictions while others are more consistent with the predictions of the IBA or a deformed symmetric rotor.« less
  • Cited by 3
  • Quadrupole moments of the six known superdeformed (SD) bands of {sup 193}Hg and the yrast SD band of {sup 192}Hg have been determined by a Doppler-shift-attenuation-method measurement utilizing the gammasphere array. The quadrupole moments of all {sup 193}Hg SD bands were found to be similar, suggesting the active single-particle orbitals in the mass-190 region exhibit only small shape-driving effects. Additionally, there is evidence for an unexpected difference in the quadrupole moments of SD bands in {sup 192}Hg and {sup 193}Hg. {copyright} {ital 1998} {ital The American Physical Society}
  • No abstract prepared.