Spectral functions of nuclear matter using self-consistent Green’s function approach based on three-body force
Physics department, Faculty of Science, Sohag University, Sohag, Egypt
2 Physics department, Faculty of Science, Taif University, Taif, Saudi Arabia
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Accepted: 3 October 2018
Published online: 29 November 2018
A self-consistent Green’s Function approach is used to study the influence of short-range correlations beyond the mean-field approach of nuclear matter. The ladder equation, including both particle-particle and hole-hole propagation, is solved in nuclear matter for a realistic interaction derived from the CD-Bonn potential. The hole-hole interaction is used to calculate the spectral functions that describe the distribution of holes below Fermi level. The nucleon spectral functions are calculated from the momentum- and energy-dependent self-energy. For comparison, the calculations are investigated by including nuclear three-body force. These spectral functions directly reflect the effects of the nucleon-nucleon correlations and can be explored by the analysis of nucleon knock-out experiments like .
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2018