Neutron hole states in Sn studied via the Sn(d,t)Sn reaction

Sn(d,t)Sn反応によるSnの中性子ホール状態の研究

Orlandi, R.  ; Pain, S. D.*; Bardayan, D. W.*; Gross, C. J.*; Smith, M. S.*; Jungclaus, A.*; Ahn, S.*; Jones, K. L.*; Pittman, S. T.*; Schmitt, K. T.*; Chipps, K. A.*; Cizewski, J. A.*; Howard, M.*; Manning, B.*; O'Malley, P. D.*; Ratkiewicz, A.*; Peters, W. A.*; Matos, M.*; Chapman, R.*; Smith, J. F.*; Catford, W. N.*; Shand, C.*

Orlandi, R.; Pain, S. D.*; Bardayan, D. W.*; Gross, C. J.*; Smith, M. S.*; Jungclaus, A.*; Ahn, S.*; Jones, K. L.*; Pittman, S. T.*; Schmitt, K. T.*; Chipps, K. A.*; Cizewski, J. A.*; Howard, M.*; Manning, B.*; O'Malley, P. D.*; Ratkiewicz, A.*; Peters, W. A.*; Matos, M.*; Chapman, R.*; Smith, J. F.*; Catford, W. N.*; Shand, C.*

Knowledge of single-particle energies in the vicinity of exotic doubly-magic nuclei is of critical importance to understand evolution of nuclear structure. In the present work, the Sn(d,t)Sn reaction (Q=-1.055 MeV) was studied in inverse kinematics at HRIBF of Oak Ridge National Laboratory. The Sn ISOL beam was post-accelerated to an energy of 4.39 MeV/u using the ORNL HRIBF accelerator. The beam (average intensity of 1.2e4 pps) impinged on a 250 g/cm deuterated polyethylene target, for approximately 4 days. Ejected tritons were detected using the Super ORRUBA array of segmented Si telescopes. Low-lying states in Sn were populated in the experiment. Preliminary results will be shown.