|Title: ||Excitation strengths in 109Sn: Single-neutron and collective excitations near 100Sn|
|Authors: ||DiJulio, D.D ×|
De Witte, Hilde
Van de Walle, J.
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.
|Publication status: ||published|
|KU Leuven publication type: ||IT|
|Appears in Collections:||Nuclear and Radiation Physics Section|