Band structures of the 123Cs nucleus
Department of Physics, Panjab University, 160 014, Chandigarh, India
2 Nuclear Science Centre, Aruna Asaf Ali Marg, 110 067, New Delhi, India
3 Oliver Lodge Laboratory, University of Liverpool, L69 7ZE, UK
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Band structures of the 123Cs nucleus have been investigated using the 100Mo(28Si, p4n) reaction at a beam energy of 130 MeV. The previously observed rotational bands based on h 11/2, g 7/2 and g 9/2 orbitals have been extended. The excitation energies of these bands have been established with the help of interband transitions and those connecting to the low-energy levels established from the + /EC decay of 123Ba (T 1/2 = 2.7 m). The bandhead of the g 9/2 band at the 328.1 keV () is proposed to be isomeric following arguments based on the intensity balance of the feeding and de-exciting transitions. New multiquasiparticle bands based on , and configurations have been identified.
© Società Italiana di Fisica and Springer-Verlag, 2004