Complex microscopic optical potential between two nuclei based on Dirac-Brueckner theory for nuclear matter |
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| Institution: | 1. Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China;2. Bristol Urological Institute, Southmead Hospital, Bristol, UK;1. Institute of Neuroepidemiology and Tropical Parasitology INSERM UMR 1094, Faculties of Medicine and Pharmacy, 2 Docteur Raymond Marcland Street, 87025 Limoges, France;2. Faculty of Health Sciences, Université des Montagnes, P.B 208, Bangangté, Cameroon;3. Faculty of Sciences, Department of Zoology, Tanta, Egypt;4. Department of Biomedical Sciences, Institute of Tropical Medicine, Nationalestraat 155, 2000 Antwerp, Belgium;1. China Nuclear Data Center, China Institute of Atomic Energy, P. O. Box 275(41), Beijing 102413, China;2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China |
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| Abstract: | The real and imaginary parts of the optical-model potential between two nuclei are calculated in the energy density formalism. The energy density is derived from the Dirac-Brueckner approach to nuclear matter. In this approach, both free NN scattering and the saturation properties of nuclear matter can be explained starting from a realistic NN interaction. The relativistic features incorporated in the Dirac-Brueckner approach make the real part of the optical potential less attractive than that obtained in a non-relativistic calculation while the imaginary part is enhanced. The comparison of the calculated differential cross section for elastic 12C-12C scattering with the experimental data suggests that the enhancement of the imaginary part due to the relativistic treatment is favourable while its repulsive contribution to the real part is unfavourable. |
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