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Yrast band spectroscopy of132Sm and130Nd |
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| Authors: | R. Wadsworth P. Regan S. M. Mullins G. J. Gyapong D. L. Watson P. J. Nolan M. J. Godfrey I. Jenkins Y. J. He B. J. Varley J. Simpso W. Gelletly |
| Affiliation: | 1. Department of Physics, University of York, YO1 5DD, York, UK 2. Department of Physics, University of Liverpool, L69 3BX, Liverpool, UK 3. Department of Physics, University of Manchester, M13 9PL, Manchester, UK 4. SERC Daresbury Laboratory, WA4 4AD, Daresbury, Warrington, UK |
| Abstract: | The states in the yrast band of132 Sm have been identified for the first time up to Jπ=16+. The yrast band of130Nd has also been extended from Jπ=16+ to 24+. The energy of the first 2+ state in132Sm indicates that the quadrupole deformation ε2 ～ 0.3 and is still increasing as the neutron number N decreases across the samarium isotopes. The results for130Nd allow the (h2/11)2 proton crossing frequency to be determined as ω=0.325 ± 0.005 MeV/?. This result is compared with cranked shell model predictions. |
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