Observation of the hot GDR in neutron-deficient thorium evaporation residues |
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| Authors: | J.P. Seitz, B.B. Back, M.P. Carpenter, I. Di szegi, K. Eisenman, P. Heckman, D.J. Hofman, M.P. Kelly, T.L. Khoo, S. Mitsuoka, V. Nanal, T. Pennington, R.H. Siemssen, M. Thoennessen,R.L. Varner |
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| Affiliation: | J.P. Seitz, B.B. Back, M.P. Carpenter, I. Diószegi, K. Eisenman, P. Heckman, D.J. Hofman, M.P. Kelly, T.L. Khoo, S. Mitsuoka, V. Nanal, T. Pennington, R.H. Siemssen, M. Thoennessen,R.L. Varner |
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| Abstract: | The giant dipole resonance built on excited states was observed in very fissile nuclei in coincidence with evaporation residues. The reaction 48Ca + 176Yb populated evaporation residues of mass A=213–220 with a cross section of 200 μb at 259 MeV. The extracted giant dipole resonance parameters are in agreement with theoretical predictions for this mass region. |
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| Keywords: | Nuclear reactions, 176Yb (48Ca, X), E=206, 219, 256, 259 MeV measured Eγ , Iγ , (evaporation residue) γ -coin, γ -ray multiplicity and sum energy, fusion and evaporation residue σ 224Th deduced GDR parameters Comparison with model predictions. |
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