Constraints on the relativistic mean field of Δ-isobar in nuclear matter
Journal Publication ResearchOnline@JCUKosov, D.S.;Fuchs, C.;Martemyanov, B.V.;Faessler, Amand
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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Volume
421
ISBN/ISSN
1873-2445
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Issue
1-4
Pages Count
4
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Publisher
Elsevier
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DOI
10.1016/S0370-2693(97)01598-0