{ "id": "1108.1327", "version": "v1", "published": "2011-08-05T13:44:10.000Z", "updated": "2011-08-05T13:44:10.000Z", "title": "Dressed-quarks and the Roper resonance", "authors": [ "Craig D. Roberts", "Ian C. Cloet", "Lei Chang", "Hannes L. L. Roberts" ], "comment": "4 pages, 3 figures. Contribution to the Proceedings of \"NSTAR2011 - The 8th International Workshop on the Physics of Excited Nucleons,\" Thomas Jefferson National Accelerator Facility, Newport News, Virginia USA, 17-20 May 2011", "categories": [ "nucl-th", "hep-lat", "hep-ph", "nucl-ex" ], "abstract": "A Dyson-Schwinger equation calculation of the light hadron spectrum, which correlates the masses of meson and baryon ground- and excited-states within a single framework, produces a description of the Roper resonance that corresponds closely with conclusions drawn recently by EBAC. Namely, the Roper is a particular type of radial excitation of the nucleon's dressed-quark core augmented by a material meson cloud component. There are, in addition, some surprises.", "revisions": [ { "version": "v1", "updated": "2011-08-05T13:44:10.000Z" } ], "analyses": { "subjects": [ "14.20.Gk", "12.38.Aw", "14.40.Be", "12.38.Lg" ], "keywords": [ "roper resonance", "material meson cloud component", "dyson-schwinger equation calculation", "light hadron spectrum", "conclusions drawn" ], "tags": [ "journal article" ], "publication": { "doi": "10.1063/1.3701237" }, "note": { "typesetting": "TeX", "pages": 4, "language": "en", "license": "arXiv", "status": "editable", "inspire": 922293, "adsabs": "2012AIPC.1432..309R" } } }