@misc{10481/71548,
year = {2021},
month = {10},
url = {http://hdl.handle.net/10481/71548},
abstract = {The onset of octupole deformation and its impact on related spectroscopic properties is studied in even-even neutron-rich lanthanide isotopes Xe, Ba, Ce, and Nd with neutron number 86 <= N <= 94. Microscopic input comes from the Hartree-Fock-Bogoliubov approximation with constrains on the axially symmetric quadrupole and octupole operators using the Gogny-D1M interaction. At the mean-field level, reflection asymmetric ground states are predicted for isotopes with neutron number around N = 88. Spectroscopic properties are studied by diagonalizing the interacting boson model Hamiltonian, with the parameters obtained via the mapping of the mean-field potential energy surface onto the expectation value of the Hamiltonian in the s, d, and f boson condensate state. The results obtained for low-energy positive-and negative-parity excitation spectra as well as the electric dipole, quadrupole, and octupole transition probabilities indicate the onset of pronounced octupolarity for Z approximate to 56 and N approximate to 88 nuclei.},
organization = {Tenure Track Pilot Programme of the Croatian Science Foundation},
organization = {Ecole Polytechnique Federale de Lausanne},
organization = {Spanish Ministry of Economy and Competitiveness (MINECO)	PGC2018-094583-B-I00},
organization = {Spanish Government	PID2019-104002GB-C21},
organization = {Consejeria de Economia, Conocimiento, Empresas y Universidad de la Junta de Andalucia (Spain)	FQM-370},
organization = {European Commission	SOMM17/6105/UGR},
organization = {European Commission},
organization = {European Commission Joint Research Centre	H2020-INFRAIA-2014-2015},
organization = {ERDF/MINECO project	UNHU-15CE-2848},
organization = {Croatian-Swiss Research Programme		
TTP-2018-07-3554},
publisher = {American Physical Society},
title = {Evolution of octupole deformation and collectivity in neutron-rich lanthanides},
doi = {10.1103/PhysRevC.104.044324},
author = {Nomura, K. and García Ramos, J. E.},
}