Sub-Barrier Coulomb Excitation of 106,108,110Sn

The reduced transition probabilities between the first excited
2
+
state and the
0
+
ground state,
B(E2;0
+
→2
+
),
have been measured in
106,108,110
Sn
using sub‐barrier Coulomb excitation in inverse kinematics at REX‐ISOLDE. The results are,
B(E2;0
+
→2
+
) = 0.220(22),
0.226(17), and
0.228(32)
e
2
b
2
,
for
110
Sn
,

108
Sn
,
and
106
Sn
,
respectively. The results for
106,108
Sn
are preliminary. De‐excitation γ‐rays were detected by the MINIBALL Ge‐array. The
B(E2)
reveals detailed information about the nuclear wave function. A shell model prediction based on an effective CD‐Bonn interaction in the ν
ν(0g
7/2
,2s,1d,0h
11/2
)
model space using
𝑒
eff
𝜈
= 1.0
e
follows the experimental values for the neutron rich Sn isotopes, but fails to reproduce the results presented here.

Authors: A. Ekstrom, J. Cederkall, C. Fahlander, M. Hjorth-Jensen, F. Ames, P.A. Butler, T. Davinson, J. Eberth, G. Georgiev, A. Gorgen, M. Gorska, D. Habs, M. Huyse, O. Ivanov, J. Iwanicki, O. Kester, U. Koster, B.A. Marsh, P. Reiter, H. Scheit, D. Schwalm, S. Siem, I. Stefanescu, G.M. Tveten, J. Van de Walle, P. Van Duppen, D. Voulot, N. Warr, D. Weisshaar, F. Wenander, M. Zielińska

Doi: 10.1063/1.2939314

Issue number:

Journal: AIP Conf. Proc.

Page number: 296

Published on: 2008-05-12

Year: