A study of the giant dipole resonance in doubly even tellurium and cerium isotopes |
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Authors: | A Leprêtre H Beil R Bergére P Carlos J Fagot A De Miniac A Veyssiére H Miyase |
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Institution: | Département de Physique Nucléaire, CEN Saclay, BP 2, 91190, Gif-sur-Yvette, France;Tohoku University, Kawanchi, Sendai, Japan |
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Abstract: | The partial photoneutron cross sections σ(γ, n) + σ(γ, pn)] and σ (γ, 2n) of 124, 126, 128, 130Te and 140, 142Ce were measured in the giant dipole resonance region by means of the monochromatic photon beam installation at SACLAY. Absolute total photoneutron cross sections, Lorentz line parameters and integrated cross sections are evaluated. The experimental behaviour of the GDR for the above nuclei and in particular its spreading, is then tentatively interpreted in terms of the improved dynamic collective model using the concept of potential energy surfaces. |
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Keywords: | Nuclear reactions |
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