Signature dependence of M1 and E2 transition probabilities for the <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>i</mi></mrow><mrow><mn>1</mn><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msub></mrow></math> rotational band in <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><mmultiscripts><mrow><mi mathvariant="normal">Dy</mi></mrow><mprescripts></mprescripts><mrow></mrow><mrow><mn>161</mn></mrow><mrow></mrow><mrow></mrow></mmultiscripts></mrow></math>

M. Oshima; E. Minehara; S. Ichikawa; H. Iimura; T. Inamura; A. Hashizume; H. Kusakari; S. Iwasaki

doi:10.1103/PhysRevC.37.2578

Signature dependence of M1 and E2 transition probabilities for the $i_{13 / 2}$ rotational band in ${}^{161}{Dy}$

M. Oshima, E. Minehara, S. Ichikawa, H. Iimura, T. Inamura, A. Hashizume, H. Kusakari, and S. Iwasaki

Phys. Rev. C 37, 2578 – Published 1 June 1988

Abstract

The ground-state rotational band of ${}^{161}{Dy}$ has been investigated through multiple Coulomb excitation with a beam of 250-MeV ${}^{58}{Ni}$ . γ-ray branchings and E2/M1 mixing ratios were determined up to the ${(25 / 2}^{+}$ state by measurements of γ-ray angular distributions and γ-γ angular correlations. Nuclear lifetimes of levels up to I=(25/2 have been measured using the Doppler-shift recoil-distance method. Considerable signature dependence was observed for ΔI=1 M1 transition probabilities. ΔI=1 E2 transition probabilities were found to decrease significantly as a function of spin. The results are compared with a microscopic model calculation based on the angular momentum projection method.