Hurst, A.M., Butler, P.A., Jenkins, D.G., Delahaye, P., Wenander, F., Ames, F., Barton, C.J., Behrens, T., Bürger, A., Cederkäll, J., Clément, E., Czosnyka, T., Davinson, T., de Angelis, G., Eberth, J., Ekström, A., Franchoo, S., Georgiev, G., Görgen, A., Herzberg, R-D., Huyse, M., Ivanov, O., Iwanicki, J., Jones, G.D., Kent, P., Köster, U., Kröll, T., Krücken, R., Larsen, A.C., Nespolo, M., Pantea, M., Paul, E.S., Petri, M., Scheit, H., Sieber, T., Siem, S., Smith, J.F., Steer, A., Stefanescu, I., Syed, N.U.H., Van de Walle, J., Van Duppen, P., Wadsworth, R., Warr, N., Weisshaar, D. and Zielińska, M. (2007) Measurement of the sign of the spectroscopic quadrupole moment for the 21+ state in 70Se: no evidence for oblate shape. Physical Review Letters, 98 (7). Art. No. 072501. ISSN 1079-7114
Full text not available from this repository.Abstract
Using a method whereby molecular and atomic ions are independently selected, an isobarically pure beam of 70Se ions was postaccelerated to an energy of 206 MeV using REX-ISOLDE. Coulomb-excitation yields for states in the beam and target nuclei were deduced by recording deexcitation rays in the highly segmented MINIBALL -ray spectrometer in coincidence with scattered particles in a silicon detector. At these energies, the Coulomb-excitation yield for the first 2+ state is expected to be strongly sensitive to the sign of the spectroscopic quadrupole moment through the nuclear reorientation effect. Experimental evidence is presented here for a prolate shape for the first 2+ state in 70Se, reopening the question over whether there are, as reported earlier, deformed oblate shapes near to the ground state in the light selenium isotopes.
| Item Type: | Article |
|---|---|
| Academic Units: | The University of York > Physics (York) |
| Depositing User: | York RAE Import |
| Date Deposited: | 31 Jul 2009 12:50 |
| Last Modified: | 31 Jul 2009 12:50 |
| Published Version: | http://dx.doi.org/10.1103/PhysRevLett.98.072501 |
| Status: | Published |
| Publisher: | The American Physical Society. |
| Identification Number: | 10.1103/PhysRevLett.98.072501 |
| URI: | http://eprints.whiterose.ac.uk/id/eprint/7285 |
Actions (login required)
 |
View Item |
