Journalartikel
Autorenliste: Reed, M. W.; Walker, P. M.; Cullen, I. J.; Litvinov, Yu. A.; Shubina, D.; Dracoulis, G. D.; Blaum, K.; Bosch, F.; Brandau, C.; Carroll, J. J.; Cullen, D. M.; Deo, A. Y.; Detwiler, B.; Dimopoulou, C.; Dong, G. X.; 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.; Podolyak, Zs.; 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.; Xu, F. R.; Yamaguchi, T.
Jahr der Veröffentlichung: 2012
Zeitschrift: Physical Review C
Bandnummer: 86
Heftnummer: 5
ISSN: 0556-2813
eISSN: 1089-490X
Open Access Status: Green
DOI Link: https://doi.org/10.1103/PhysRevC.86.054321
Verlag: American Physical Society
Abstract:
A study of neutron-rich isotopes in the A = 185 region of the nuclear chart has uncovered long-lived (>1 s) isomers in several isotopes of hafnium, tantalum, tungsten, rhenium, and osmium. The region was accessed via the use of projectile fragmentation with the UNILAC-SIS accelerators at GSI. Fragmentation products of Au-197 were passed through the fragment separator (FRS) and injected into the experimental storage ring (ESR), where single-ion identifications could be made. Evidence is presented for isomers in Hf-183,Hf-184,Hf-186, Ta-186,Ta-187, W-186, Re-190,Re-192,Re-194, and Os-195 with excitation energies in the range of 0.1-3.0 MeV. The lightest of these nuclides have well deformed prolate shapes, while the heaviest are transitional and susceptible to shape changes. Their properties are interpreted with the help of multi-quasiparticle and potential-energy-surface calculations.
Zitierstile
Harvard-Zitierstil: Reed, M., Walker, P., Cullen, I., Litvinov, Y., Shubina, D., Dracoulis, G., et al. (2012) Long-lived isomers in neutron-rich Z=72-76 nuclides, Physical Review C, 86(5), Article 054321. https://doi.org/10.1103/PhysRevC.86.054321
APA-Zitierstil: Reed, M., Walker, P., Cullen, I., Litvinov, Y., Shubina, D., Dracoulis, G., Blaum, K., Bosch, F., Brandau, C., Carroll, J., Cullen, D., Deo, A., Detwiler, B., Dimopoulou, C., Dong, G., Farinon, F., Geissel, H., Haettner, E., Heil, M., ...Yamaguchi, T. (2012). Long-lived isomers in neutron-rich Z=72-76 nuclides. Physical Review C. 86(5), Article 054321. https://doi.org/10.1103/PhysRevC.86.054321
Schlagwörter
DECAY; Exotic nuclei; EXPERIMENTAL STORAGE-RING; FRS; HEAVY-ION STORAGE; K-ISOMERS; PROJECTILE FRAGMENTS; QUASI-PARTICLE STATES; SCHOTTKY MASS-SPECTROMETRY
