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Title: Excitation strengths in 109Sn: Single-neutron and collective excitations near 100Sn
Authors: DiJulio, D.D ×
Cederkall, J.
Fahlander, C.
Ekstr¨om, A.
Hjorth-Jensen, M.
Albers, M.
Bildstein, V.
Blazhev, A.
Darby, Iain
Davinson, T.
De Witte, Hilde
Diriken, Jan
Fransen, Ch.
Geibel, K.
Gernh¨auser, R.
G¨orgen, A.
Hess, H.
Iwanicki, J.
Lutter, R.
Reiter, P.
Scheck, M.
Seidlitz, M.
Siem, S.
Taprogge, J.
Tveten, G.M.
Van de Walle, J.
Voulot, D.
Warr, N.
Wenander, F.
Wimmer, K. #
Issue Date: Sep-2012
Publisher: Published for the American Physical Society by the American Institute of Physics
Series Title: Physical Review C, Nuclear Physics vol:86
Article number: 031302(R)
Abstract: A set of B(E2) values for the low-lying excited states in the radioactive isotope 109Sn were deduced from a Coulomb excitation experiment. The 2.87-MeV/u radioactive beam was produced at the REX-ISOLDE facility at CERN and was incident on a secondary 58Ni target. The B(E2) values were determined using the known 2+ → 0+ reduced transition probability in 58Ni as normalization with the semi-classical Coulomb excitation code GOSIA2. The transition probabilities are compared to shell-model calculations based on a realistic nucleon-nucleon
interaction and the predictions of a simple core-excitation model. This measurement represents the first determination of multiple B(E2) values in a light Sn nucleus using the Coulomb excitation technique with low-energy radioactive beams. The results provide constraints for the single-neutron states relative to 100Sn and also indicate the importance of both single-neutron and collective excitations in the light Sn isotopes.
ISSN: 0556-2813
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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