The single-particle interaction in nuclear matter via the relativistic Dirac-Brueckner approach |
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| Affiliation: | 1. Department of Chemistry & Biochemistry, Northern Illinois University, 1425 W. Lincoln Hwy, Dekalb, IL 60115, USA;2. Department of Chemistry & Biology, Ryerson University, 350 Victoria Street, Toronto, ON M5B 2K3, Canada;1. Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China;2. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China;3. Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China;4. School of Physics and Astronomy and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai 200240, China;5. Cyclotron Institute and Department of Physics and Astronomy, Texas A&M University, College Station, Texas 77843, USA;1. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, PR China;2. University of Chinese Academy of Sciences, Beijing, 100049, China;3. Chongqing Key Laboratory of Soil Multi-Scale Interfacial Processes, College of Resources and Environment, Southwest University, Chongqing 400715, PR China |
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| Abstract: | ![]()
Within the relativistic Dirac-Brueckner approach and starting from a one-boson-exchange interaction, the nucleon selfenergy is calculated above the nuclear-matter Fermi sea. The effects of Pauli blocking and energy dispersion are studied. At low energy we see a dominance of the Pauli blocking whereas at nucleon energies up to 250 MeV the dispersive effect still has a very large influence on the single-particle interaction. From the selfenergy a Schrödinger optical potential is deduced, for which the DB results nicely agree with empirical values. The density dependence of this optical potential compares well with earlier calculations. |
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