On the Dirac Structure of the Nucleon Selfenergy in Nuclear Matter
A. Trasobares, A. Polls, A. Ramos, H. Müther
Abstract
The relativistic structure of the self-energy of a nucleon in nuclear matter is investigated including the imaginary and real components which arise from the terms of first and second order in the NN interaction. A parameterized form of Brueckner G matrix is used for the NN interaction. The effects of the terms beyond the DBHF approximation on quasiparticle energies and the optical potential for nucleon-nucleus scattering are discussed.
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