Yazar, Harun ReşitUluer, İhsan2020-06-252020-06-252007closedAccess0556-2813https://doi.org10.1103/PhysRevC.75.034309https://hdl.handle.net/20.500.12587/3963The negative parity states and some electromagnetic transition properties of even-odd erbium isotopes (Er-159,Er-161,Er-163,Er-165) were studied within the framework of the interacting boson-fermion model. The single fermion is assumed to be in one of the lh(9/2),3p(3/2),2f(5/2), and 3p(1/2) single-particle orbits. It was found that the calculated negative parity state energy spectra of the even-odd erbium isotopes agree quite well with the experimental data. The B(E2) values were also calculated and compared with the experimental data.eninfo:eu-repo/semantics/closedAccessArticle75310.1103/PhysRevC.75.0343092-s2.0-33947510727N/AWOS:000245332200019Q1