Discovery of Highly Excited Long-Lived Isomers in Neutron-Rich Hafnium and Tantalum Isotopes through Direct Mass Measurements
Reed, MW, Cullen, IJ, Walker, PM, Litvinov, YA, Blaum, K, Bosch, F, Brandau, C, Carroll, JJ, Cullen, DM, Deo, AY, Detwiller, B, Dimopoulou, C, Dracoulis, GD, Farinon, F, Geissel, H, Haettner, E, Heil, M, Kempley, RS, Knoebel, R, Kozhuharov, C, Kurcewicz, J, Kuzminchuk, N, Litvinov, S, Liu, Z, Mao, R, Nociforo, C, Nolden, F, Plass, WR, Prochazka, A, Scheidenberger, C, Steck, M, Stoehlker, T, Sun, B, Swan, TPD, Trees, G, Weick, H, Winckler, N, Winkler, M, Woods, PJ and 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). ? - ?. ISSN 0031-9007
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Plain Text (licence)
A study of cooled 197Au 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 183,184,186Hf and 186,187Ta. The results support the prediction of a strongly favored isomer region near neutron number 116.
|Uncontrolled Keywords:||Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, QUASI-PARTICLE STATES, ATOMIC-NUCLEI, STABILITY, STORAGE, TRAPS, DECAY, LINE, FRS, GSI|
|Divisions:||Faculty of Engineering and Physical Sciences > Physics|
|Depositing User:||Symplectic Elements|
|Date Deposited:||16 Nov 2011 10:56|
|Last Modified:||23 Sep 2013 18:48|
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