Lifetime measurements in Ru-100

KONSTANTINOPOULOS T., PETKOV P., Goasduff A., ARICI T., ASTIER A., Atanasova L., ...More

PHYSICAL REVIEW C, vol.95, no.1, 2017 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 95 Issue: 1
  • Publication Date: 2017
  • Doi Number: 10.1103/physrevc.95.014309
  • Journal Name: PHYSICAL REVIEW C
  • Journal Indexes: Science Citation Index Expanded, Scopus


The nucleus Ru-100 appears to be a good candidate for the E(5) critical point symmetry which describes the U(5)-SO(6) shape phase transition. To investigate this point with respect to the electromagnetic transition strengths, lifetime measurements of its yrast states have been performed using the recoil distance Doppler shift technique as well as the Doppler shift attenuation method. As a result, the lifetimes of the yrast 2(+), 4(+), and 8(+) states were determined. The deduced transition strengths are compared to the E(5) predictions as well as to the results of excited Vampir and shell-model calculations.