First lifetime measurement of dipole collective bands in neutron-deficient lead nuclei

T. F. Wang; E. A. Henry; J. A. Becker; A. Kuhnert; M. A. Stoyer; S. W. Yates; M. J. Brinkman; J. A. Cizewski; A. O. Macchiavelli; F. S. Stephens; M. A. Deleplanque; R. M. Diamond; J. E. Draper; F. A. Azaiez; W. H. Kelly; W. Korten; E. Rubel; Y. A. Akovali

doi:10.1103/PhysRevLett.69.1737

First lifetime measurement of dipole collective bands in neutron-deficient lead nuclei

T. F. Wang, E. A. Henry, J. A. Becker, A. Kuhnert, M. A. Stoyer, S. W. Yates, M. J. Brinkman, J. A. Cizewski, A. O. Macchiavelli, F. S. Stephens, M. A. Deleplanque, R. M. Diamond, J. E. Draper, F. A. Azaiez, W. H. Kelly, W. Korten, E. Rubel, and Y. A. Akovali

Phys. Rev. Lett. 69, 1737 – Published 21 September 1992

Abstract

Lifetimes of states in two ΔI=1 bands in ${}^{198}{Pb}$ have been measured using the Doppler-shift attenuation method. The in-band reduced transition probabilities are ∼1–2 Weisskopf units assuming magnetic dipole transitions. The measured lifetimes in conjunction with the partial level scheme support an oblate collective interpretation for these structures.