@article {Watanabe2011186,
	title = {Low-lying level structure of the neutron-rich nucleus 109Nb: A possible oblate-shape isomer},
	journal = {Physics Letters B},
	volume = {696},
	number = {3},
	year = {2011},
	pages = {186 - 190},
	abstract = {The neutron-rich nuclei 109Nb and 109Zr have been populated using in-flight fission of a 238U beam at 345 MeV/nucleon at the \RIBF\ facility. A T 1 / 2 = 150 ( 30 ) ns isomer at 313 keV has been identified in 109Nb for the first time. The low-lying levels in 109Nb have been also populated following the β-decay of 109Zr. Based on the difference in feeding pattern between the isomeric and β decays, the decay scheme from the isomeric state in 109Nb was established. The observed hindrances of the electromagnetic transitions deexciting the isomeric state are discussed in terms of possible shape coexistence. Potential energy surface calculations for single-proton configurations predict the presence of low-lying oblate-deformed states in 109Nb.},
	keywords = {shape coexistence},
	issn = {0370-2693},
	doi = {http://dx.doi.org/10.1016/j.physletb.2010.12.028},
	url = {http://www.sciencedirect.com/science/article/pii/S0370269310014206},
	author = {H. Watanabe and T. Sumikama and S. Nishimura and K. Yoshinaga and Z. Li and Y. Miyashita and K. Yamaguchi and H. Baba and J.S. Berryman and Blasi, N. and Bracco, A. and F. Camera and J. Chiba and P. Doornenbal and S. Go and T. Hashimoto and S. Hayakawa and C. Hinke and E. Ideguchi and T. Isobe and Y. Ito and D.G. Jenkins and Y. Kawada and N. Kobayashi and Y. Kondo and R. Kr{\"u}cken and S. Kubono and G. Lorusso and T. Nakano and M. Kurata-Nishimura and A. Odahara and H.J. Ong and S. Ota and Podoly{\'a}k, Zs. and H. Sakurai and H. Scheit and Y. Shi and K. Steiger and D. Steppenbeck and K. Sugimoto and K. Tajiri and S. Takano and A. Takashima and T. Teranishi and Y. Wakabayashi and P. M. Walker and O. Wieland and F.R. Xu and H. Yamaguchi}
}
