Journal article

Discovery of Highly Excited Long-Lived Isomers in Neutron-Rich Hafnium and Tantalum Isotopes through Direct Mass Measurements


Authors listReed, M. W.; Cullen, I. J.; Walker, P. M.; Litvinov, Yu. A.; Blaum, K.; Bosch, F.; Brandau, C.; Carroll, J. J.; Cullen, D. M.; Deo, A. Y.; Detwiller, B.; Dimopoulou, C.; Dracoulis, G. D.; Farinon, F.; Geissel, H.; Haettner, E.; Heil, M.; Kempley, R. S.; Knoebel, R.; Kozhuharov, C.; Kurcewicz, J.; Kuzminchuk, N.; Litvinov, S.; Liu, Z.; Mao, R.; Nociforo, C.; Nolden, F.; Plass, W. R.; Prochazka, A.; Scheidenberger, C.; Steck, M.; Stoehlker, Th.; Sun, B.; Swan, T. P. D.; Trees, G.; Weick, H.; Winckler, N.; Winkler, M.; Woods, P. J.; Yamaguchi, T.

Publication year2010

JournalPhysical Review Letters

Volume number105

Issue number17

ISSN0031-9007

Open access statusGreen

DOI Linkhttps://doi.org/10.1103/PhysRevLett.105.172501

PublisherAmerican Physical Society


Abstract
A study of cooled (197)Au projectile-fragmentation products has been performed with a storage ring. This has enabled metastable nuclear excitations with energies up to 3 MeV, and half-lives extending to minutes or longer, to be identified in the neutron-rich nuclides (183,184,186)Hf and (186,187)Ta. The results support the prediction of a strongly favored isomer region near neutron number 116.



Citation Styles

Harvard Citation styleReed, M., Cullen, I., Walker, P., Litvinov, Y., Blaum, K., Bosch, F., et al. (2010) Discovery of Highly Excited Long-Lived Isomers in Neutron-Rich Hafnium and Tantalum Isotopes through Direct Mass Measurements, Physical Review Letters, 105(17), Article 172501. https://doi.org/10.1103/PhysRevLett.105.172501

APA Citation styleReed, M., Cullen, I., Walker, P., Litvinov, Y., Blaum, K., Bosch, F., Brandau, C., Carroll, J., Cullen, D., Deo, A., Detwiller, B., Dimopoulou, C., Dracoulis, G., Farinon, F., Geissel, H., Haettner, E., Heil, M., Kempley, R., Knoebel, R., ...Yamaguchi, T. (2010). Discovery of Highly Excited Long-Lived Isomers in Neutron-Rich Hafnium and Tantalum Isotopes through Direct Mass Measurements. Physical Review Letters. 105(17), Article 172501. https://doi.org/10.1103/PhysRevLett.105.172501



Keywords


ATOMIC-NUCLEIDECAYFRSGSIQUASI-PARTICLE STATES

Last updated on 2025-10-06 at 09:56