Abstract
The lifetime of the (11/2+) state in the band above the proton-emitting (3/2+) state in 113Cs has been measured to be τ=24(6) ps from a recoil-decay-tagged differential-plunger experiment. The measured lifetime was used to deduce the deformation of the states using wave functions from a nonadiabatic quasiparticle model to independently calculate both proton-emission and electromagnetic γ-ray transition rates as a function of deformation. The only quadrupole deformation, which was able to reproduce the experimental excitation energies of the states, the electromagnetic decay rate of the (11/2+) state and the proton-emission rate of the (3/2+) state, was found to be β2=0.22(6). This deformation is in agreement with the earlier proton emission studies which concluded that 113Cs was best described as a deformed proton emitter, however, it is now more firmly supported by the present measurement of the electromagnetic transition rate.
Original language | English |
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Article number | 034321 |
Number of pages | 8 |
Journal | Physical Review C |
Volume | 94 |
Early online date | 21 Sept 2016 |
DOIs | |
Publication status | Published - 21 Sept 2016 |
Keywords
- collective models
- electromagnetic transitions
- lifetimes and widths
- nuclear structure and decays
- proton emission
- spectroscopic factors andelectromagnetic moments