Reinvestigation of the excited states in the proton emitter Lu 151 : Particle-hole excitations across the N=Z=64 subshell

Autor: Wang, H F, Sun, B. H., Liu, Z., Qi, C., Zhu, L. H., Scholey, C., Ashley, S. F., Bianco, L., Cullen, I. J., Darby, I G, Eeckhaudt, S, Garnsworthy, A. B., Gelletly, W., Gomez-Hornillos, M. B., Grahn, T., Greenlees, P. T., Jenkins, D. G., Jones, G. A., Jones, P., Joss, D T, Julin, R., Juutinen, S., Ketelhut, S, Khan, S., Kishada, A., Leino, M., Niikura, M., Nyman, M., Page, R D, Pakarinen, J., Pietri, S., Podolyák, Z.S., Rahkila, P., Rigby, S. V., Sarén, J., Shizuma, T., Sorri, J., Steer, S., Thomson, J., Thompson, N. J., Uusitalo, J., Walker, P. M., Williams, S.
Jazyk: angličtina
Rok vydání: 2017
ISSN: 2469-9993
Popis: The excited states of the proton emitter Lu151 were reinvestigated in a recoil-decay tagging experiment at the Accelerator Laboratory of the University of Jyväskylä (JYFL). The level scheme built on the ground state of Lu151 was updated with five new γ-ray transitions. Large-scale shell model calculations were carried out in the model space consisting of the neutron and proton orbitals 0g7/2, 1d5/2, 1d3/2, 2s1/2, and 0h11/2 with the optimized monopole interaction in order to interpret the experimental level scheme of Lu151. It is found that the excitation energies of states above the 27/2- and 23/2+ isomeric levels in Lu151 can be sensitive to excitations from g7/2 and d5/2 to single-particle orbitals above N=Z=64.
Databáze: OpenAIRE