High-spin states in Cs133 and the shell model description

The high-spin states in Cs-133, populated using the reaction Te-130(Li-7, 4n) with 45-MeV beam energy, have been extended up to an excitation energy of 5.265 MeV using the Indian National Gamma Array. The observed one- and three-quasiparticle bands in Cs-133, built on the pi h(11/2), pi g(7/2), pi d(5/2); and (pi g(7/2)pi d(5/2))(1) circle times vh(11/2)(-2) configurations, respectively, have similar structure as seen in the lighter odd-A Cs isotopes. The experimental level scheme has been compared with the large-scale shell model calculation without truncation using the jj55pna interaction, showing a good agreement for both positive- and negative-parity states.