Relativistic aspects of the nuclear mean field in high-energy nucleus-nucleus collisions |
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| Affiliation: | 1. Center for Gravitational Physics, Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan;2. Theoretical Research Division, Nishina Center, RIKEN, Wako 351-0198, Japan;3. Center for Computational Sciences, University of Tsukuba, Ibaraki 305-8571, Japan;4. iTHEMS Program and iTHES Research Group, RIKEN, Wako 351-0198, Japan;5. Research Center for Nuclear Physics (RCNP), Osaka University, Osaka 567-0047, Japan;6. Nihon University, College of Bioresource Sciences, Kanagawa 252-0880, Japan;7. Department of Physics, Kyoto University, Kyoto 606-8502, Japan;1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China;2. Institut de Physique Nucléaire de Lyon, IN2P3-CNRS, Université Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex, France;3. Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, F-91406 Orsay Cedex, France;4. Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, Lanzhou 730000, China;1. Department of Physics and Astronomy, Mississippi State University, MS 39762, United States of America;2. Ghana Atomic Energy Commission, National Nuclear Research Institute, P.O. Box LG80, Legon, Ghana;3. Fakultät für Physik, Technische Universität München, D-85748 Garching, Germany;1. Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700064, India;2. Laboratório de Física Teórica e Computacional, Universidade Cruzeiro do Sul, Rua Galvão Bueno, 868, Liberdade 01506-000, São Paulo, SP, Brazil |
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| Abstract: | The nuclear mean field as obtained within the Dirac-Brueckner approach is studied concerning its high-energy relativistic aspects. It is demonstrated that due to the different Lorentz character of the scalar and vector self-energies, which are the building blocks of the mean field, additional repulsion arises not present in non-relativistic treatments. |
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