Elastic and inelastic scattering of nucleons from 16O |
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| Institution: | 1. INFN-Florence and Department of Physics and Astronomy, University of Florence, via G. Sansone 1, 50019 Sesto Fiorentino, Italy;2. Tandem Accelerator Laboratory, Institute of Nuclear and Particle Physics, NCSR “Demokritos”, 153.10 Aghia Paraskevi, Athens, Greece;1. Universidad Autónoma de Madrid, Centro de Micro Análisis de Materiales, Madrid, Spain;2. Dipartimento di Fisica dell’Universitá and Sezione INFN, Genova, Italy;3. Laboratorio Nacional de Fusión CIEMAT, Madrid, Spain;1. Massachusetts Institute of Technology, Cambridge, MA 02139, USA;2. Columbia University, New York, NY 10027, USA;1. Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand;2. Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand;3. Department of Physics, Kyungpook National University, Daegu 702-701, Republic of Korea;1. University of Kansas, Lawrence, KS, United States of America;2. CEA Saclay, Irfu/DPhP, Gif-sur-Yvette, France |
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| Abstract: | Measurements of differential elastic and inelastic cross sections for neutron scattering from 16O at incident energies 18 to 26 MeV are presented. In addition to cross sections for neutron scattering differential cross sections for proton scattering up to 66 MeV are described in terms of phenomenological optical model potentials. At 24.5 MeV incident energy inelastic scattering up to 11.5 MeV excitation was measured. The elastic and inelastic compound nucleus contributions were examined. Direct inelastic scattering from the normal parity states was calculated using the DWBA and coupled-channel formalisms. The inelastic scattering cross section from non-normal parity state 2− was calculated using the coupled-channel formalism via multi-step processes. Cross sections due to inelastic scattering from some of the states, which are thought to be members of an excited state rotational band were calculated using both vibrational and rotational approaches and were compared. |
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