Particle-hole excited states in 133Te Academic Article uri icon

abstract

  • Excited states in neutron-rich 133 Te have been identified with the Gamma sphere array by measuring three- and higher-fold prompt coincidence events following spontaneous fission of 252 Cf. Four types of particle-hole bands built on the known 334.3 keV isomer in 133 Te are identified. The yrast and near yrast particle-hole states observed up to 6.2 MeV in 133 Te have characteristics quite similar to those in 134 Te. These states are interpreted as a result of coupling a neutron νh 11/2 hole to the 134 Te core. The group of states observed above 5.214 MeV is the result of a neutron particle-hole excitation of the double magic core nucleus 132 Sn, and is a candidate for a tilted rotor band. Shell-model calculations considering 132 Sn as a closed core have been performed and have provided guidance to the interpretation of the levels below 4.3 MeV. Very good agreement between theory and experiment is obtained for these states.

author list (cited authors)

  • Hwang, J. K., Ramayya, A. V., Hamilton, J. H., Beyer, C. J., Rasmussen, J. O., Luo, Y. X., ... Gargano, A.

citation count

  • 14

publication date

  • March 2002