Coulomb excitation of 6828Ni40 at “safe” energies

The 𝐵⁡(𝐸⁢2;0+→2+) value in
68
Ni
has been measured using Coulomb excitation at safe energies. The
68
Ni
radioactive beam was postaccelerated at the CERN on-line isotope mass separator (ISOLDE) facility to 2.9 MeV/u and directed to a
108
Pd
target. The emitted 𝛾 rays were detected by the MINIBALL detector array. Not only directly registered but also indirectly deduced information on the nucleus emitting the 𝛾 ray was used to perform the Doppler correction, leading to a larger center-of-mass angular range to infer the excitation cross section. The obtained value of 2.8+1.2
−1.0×102⁢𝑒2 fm4 is in good agreement with the value measured at intermediate energy Coulomb excitation, confirming the low 0+→2+ transition probability.

Authors: N. Bree, I. Stefanescu, P. A. Butler, J. Cederkäll, T. Davinson, P. Delahaye, J. Eberth, D. Fedorov, V. N. Fedosseev, L. M. Fraile, S. Franchoo, G. Georgiev, K. Gladnishki, M. Huyse, O. Ivanov, J. Iwanicki, J. Jolie, U. Köster, Th. Kröll, R. Krücken, B. A. Marsh, O. Niedermaier, P. Reiter, H. Scheit, D. Schwalm, T. Sieber, J. Van de Walle, P. Van Duppen, N. Warr, D. Weisshaar, F. Wenander, S. Zemlyanoy

Doi: 10.1103/PhysRevC.78.047301

Issue number:

Journal: Phys. Rev. C

Page number: 047301

Published on: 2008-10-20

Year: