{ "id": "hep-ph/9411265", "version": "v1", "published": "1994-11-10T21:17:38.000Z", "updated": "1994-11-10T21:17:38.000Z", "title": "QCD sum rules for $Δ$ isobar in nuclear matter", "authors": [ "Xuemin Jin" ], "comment": "9 pages, 1 figure, which can be obtained upon request", "journal": "Phys.Rev.C51:2260-2263,1995", "doi": "10.1103/PhysRevC.51.2260", "categories": [ "hep-ph" ], "abstract": "The self-energies of $\\Delta$ isobar propagating in nuclear matter are calculated using the finite-density QCD sum-rule methods. The calculations show that the Lorentz vector self-energy for the $\\Delta$ is significantly smaller than the nucleon vector self-energy. The magnitude of the $\\Delta$ scalar self-energy is larger than the corresponding value for the nucleon, which suggests a strong attractive net self-energy for the $\\Delta$; however, the prediction for the scalar self-energy is very sensitive to the density dependence of certain in-medium four-quark condensate. Phenomenological implications for the couplings of the $\\Delta$ to the nuclear scalar and vector fields are briefly discussed.", "revisions": [ { "version": "v1", "updated": "1994-11-10T21:17:38.000Z" } ], "analyses": { "keywords": [ "qcd sum rules", "nuclear matter", "finite-density qcd sum-rule methods", "scalar self-energy", "in-medium four-quark condensate" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. C" }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "inspire": 379684 } } }