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Constraints on the relativistic mean field of $Δ$-isobar in nuclear matter

D. S. Kosov·C. Fuchs·B. V. Martemyanov·Amand Faessler
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Abstract

The effects of the presence of $Δ$-isobars in nuclear matter are studied in the framework of relativistic mean-field theory. The existence of stable nuclei at saturation density imposes constraints on the $Δ$-isobar self-energy and thereby on the mean-field coupling constants of the scalar and vector mesons with $Δ$-isobars. The range of possible values for the scalar and vector coupling constants of $Δ$-isobars with respect to the nucleon coupling is investigated and compared to recent predictions of QCD sum-rule calculations.

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D. S. Kosov, C. Fuchs, B. V. Martemyanov, Amand Faessler. 1998-05-12. Constraints on the relativistic mean field of $Δ$-isobar in nuclear matter. https://doi.org/10.1016/s0370-2693(97)01598-0

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