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

AIP Conf. Proc.

1012
296
(2008)
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

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.

DOI
10.1063/1.2939314
Published on
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