{ "id": "1110.5466", "version": "v2", "published": "2011-10-25T11:18:45.000Z", "updated": "2011-12-29T01:02:34.000Z", "title": "$η'$ photoproduction on the nucleons in the quark model", "authors": [ "Xian-Hui Zhong", "Qiang Zhao" ], "comment": "10 pages, 9 figures", "journal": "PHYS. REV. C84: 065204 (2011)", "doi": "10.1103/PhysRevC.84.065204", "categories": [ "nucl-th", "hep-ex", "hep-ph", "nucl-ex" ], "abstract": "A chiral quark-model approach is adopted to study the $\\gamma p\\rightarrow \\eta'p$ and $\\gamma n\\rightarrow \\eta' n$. Good descriptions of the recent observations from CLAS and CBELSA/TAPS are obtained. Both of the processes are governed by $S_{11}(1535)$ and $u$ channel background. Strong evidence of an $n=3$ shell resonance $D_{15}(2080)$ is found in the reactions, which accounts for the bump-like structure around $W=2.1$ GeV observed in the total cross section and excitation functions at very forward angles. The $S_{11}(1920)$ seems to be needed in the reactions, with which the total cross section near threshold for the $\\gamma p\\rightarrow \\eta' p$ is improved slightly. The polarized beam asymmetries show some sensitivities to $D_{13}(1520)$, although its effects on the differential cross sections and total cross sections are negligible. There is no obvious evidence of the $P$-, $D_{13}$-, $F$- and $G$-wave resonances with a mass around 2.0 GeV in the reactions.", "revisions": [ { "version": "v2", "updated": "2011-12-29T01:02:34.000Z" } ], "analyses": { "subjects": [ "13.60.Le", "12.39.Fe", "12.39.Jh", "14.20.Gk" ], "keywords": [ "total cross section", "quark model", "photoproduction", "chiral quark-model approach", "differential cross sections" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review C", "year": 2011, "month": "Dec", "volume": 84, "number": 6, "pages": "065204" }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "inspire": 942761, "adsabs": "2011PhRvC..84f5204Z" } } }