Nuclear Matter Spectral Functions by Transport Theory

Details Nuclear Matter Spectral Functions by Transport Theory Nuclear Matter Spectral Functions by Transport Theory

2001-08-04

arxiv.org/abs/nucl-th/0108008v2

Nucl.Phys. A703 (2002) 393-408

Physics

Nuclear Physics

Nuclear Theory

24 pages, 8 figures, few changes in the text, new figure 3

Scientific paper

10.1016/S0375-9474(01)01534-2

Quantum transport theory is used to calculate the nucleon spectral function in infinite nuclear matter. A self-consistent description is obtained by utilizing the relations between collision rates and correlation functions. Static and dynamical self-energies are taken into account in the single particle propagators. The real parts of the non-static self-energy contributions are calculated by dispersion theory thus conserving the analyticity of momentum distributions. The transport theoretical spectral functions, momentum distributions, occupation probabilities and responce functions are in close agreement with results of variational and other many-body theoretical calculations. The results indicate that the nucleon spectral functions are determined only by the average short-range correlation strength.

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