Abstract
We report here on the first study of the level structure of151Ho. High spin levels in151Ho have been populated in the141Pr+16O and144Sm+12C reactions. The level structure has been established up to 6.6 MeV energy and the spins and parities determined up to 49/2−. Most of the proposed level configurations can be explained by the coupling ofh 11/2 protons tof 7/2 and/orh 9/2 neutrons. An isomer with 14±3 ns half-life and a delayed gamma multiplicity equal to 17±2 has been found. Its spin is larger than 57/2ħ units.
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Work performed within the Grenoble-Swierk collaboration, operating under IN2P3-Warsaw University agreement
We thank J. Lukasiak and V. Barci for their help during several phases of the experiments, S. Jang, P. Kleinheinz and Z. Szymanski for many fruitful discussions and F.A. Beck for making his polarimeter available to us. We are indebted to the Grenoble cyclotron crew for providing the beam, to G. Margotton for his technical assistance during the experiments and to J.P. Richaud for preparation of rolled isotopic targets.
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Gizon, J., Gizon, A., André, S. et al. High spin levels in151Ho. Z Physik A 301, 67–74 (1981). https://doi.org/10.1007/BF01412465
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DOI: https://doi.org/10.1007/BF01412465