Isomeric state in the odd-odd 68Ga nucleus

R. Escudeiro, C.E.C. Vasconcellos, P.R.P. Allegro, N.H. Medina, D.L. Toufen, N. Added, V.A.P. Aguiar,S.G.P.N. Alberton, J. Alcántara-Núñez, M.A. Guazzelli, E.L.A. Macchione, J.R.B. Oliveira,R.V. Ribas,V.B. Scarduelli

Journal of Physics: Conference Series(2022)

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摘要
Abstract The half life of the 7− isomeric state of the odd-odd 68Ga nucleus was measured using a particle-γ delayed coincidence technique. The 68Ga nuclei were produced using the fusion-evaporation reaction 55Mn(16O,2pn)68Ga at 55 MeV incident beam energy. The beam was produced by the 8 MV Pelletron accelerator of the Nuclear Physics Open Laboratory of the University of São Paulo. The half life was measured using the Isomeric State Measurement System (SISMEI). The obtained value was 60.83(25) ns, compatible with previous measurements. The 68Ga excited states were well described with the Large Scale Shell Model using the JUN45 residual interaction.
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关键词
isomeric state,<sup>68</sup>ga,odd-odd
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