{ "id": "1005.2055", "version": "v1", "published": "2010-05-12T11:27:50.000Z", "updated": "2010-05-12T11:27:50.000Z", "title": "Reconciling the X(4630) with the Y(4660)", "authors": [ "Feng-Kun Guo", "Johann Haidenbauer", "Christoph Hanhart", "Ulf-G. Meißner" ], "comment": "9 pages", "journal": "Phys.Rev.D82:094008,2010", "doi": "10.1103/PhysRevD.82.094008", "categories": [ "hep-ph" ], "abstract": "The Belle Collaboration observed an enhancement called X(4630) in the Lambda_c^+ Lambda_c^- mass distribution using initial state radiation. We demonstrate that the enhancement could be consistent with the psi'f_0(980) molecular picture of the Y(4660) taking into account the Lambda_c^+ Lambda_c^- final state interaction. To test the hypothesis that the X(4630) and Y(4660) are the same molecular state, we give predictions for its spin partner, the eta_c'f_0(980) molecule. High statistic measurements of the B decays into the K Lambda_c^+ Lambda_c^- and K eta_c' pi^+ pi^- are strongly recommended.", "revisions": [ { "version": "v1", "updated": "2010-05-12T11:27:50.000Z" } ], "analyses": { "subjects": [ "14.40.Pq", "14.40.Rt" ], "keywords": [ "initial state radiation", "final state interaction", "high statistic measurements", "molecular picture", "reconciling" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2010, "month": "Nov", "volume": 82, "number": 9, "pages": "094008" }, "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "inspire": 855854, "adsabs": "2010PhRvD..82i4008G" } } }