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The alpha-particle in nuclear matter

M. Beyer·S. A. Sofianos·C. Kuhrts·G. Roepke·P. Schuck
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Abstract

Among the light nuclear clusters the alpha-particle is by far the strongest bound system and therefore expected to play a significant role in the dynamics of nuclei and the phases of nuclear matter. To systematically study the properties of the alpha-particle we have derived an effective four-body equation of the Alt-Grassberger-Sandhas (AGS) type that includes the dominant medium effects, i.e. self energy corrections and Pauli-blocking in a consistent way. The equation is solved utilizing the energy dependent pole expansion for the sub system amplitudes. We find that the Mott transition of an alpha-particle at rest differs from that expected from perturbation theory and occurs at approximately 1/10 of nuclear matter densities.

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M. Beyer, S. A. Sofianos, C. Kuhrts, G. Roepke, P. Schuck. 2000-05-11. The alpha-particle in nuclear matter. https://doi.org/10.1016/s0370-2693(00)00908-4

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