@article{Piepenbring1988,
abstract = {The multiphonon method, which is mainly an exact diagonalisation of the total hamiltonian in the collective space, is applied to the analysis of the $\gamma$-vibrations in 168Er. The results are compared to those obtained by Dumitrescu and Hamamoto in a perturbation treatment and by Matsuo and Matsuyanagi in the self-consistent collective coordinate method. It is also explained why the quasiparticle phonon model of Soloviev strongly overestimates the energies of the two phonon states. {\textcopyright} 1988.},
author = {Piepenbring, R. and Jammari, M. K.},
doi = {10.1016/0375-9474(88)90474-5},
issn = {03759474},
journal = {Nuclear Physics, Section A},
keywords = {Nuclear Structure},
number = {1},
pages = {81--93},
title = {{Anharmonicities of $\gamma$-vibrations in 168Er}},
volume = {481},
year = {1988}
}

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