{ "id": "0901.1437", "version": "v2", "published": "2009-01-11T13:18:24.000Z", "updated": "2009-05-11T10:52:06.000Z", "title": "Experimental constraints on nMSSM and implications on its phenomenology", "authors": [ "Junjie Cao", "Heather E. Logan", "Jin Min Yang" ], "comment": "version in PRD (Rapid Communication)", "journal": "Phys.Rev.D79:091701,2009", "doi": "10.1103/PhysRevD.79.091701", "categories": [ "hep-ph", "hep-ex" ], "abstract": "We examine various direct and indirect experimental constraints on the nearly minimal supersymmetric standard model (nMSSM) and obtain the following observations: (i) Current experiments stringently constrain the parameter space, setting a range of 1-37 GeV for the lightest neutralino (LSP), 30-140 GeV (1-250 GeV) for the lightest CP-even (CP-odd) Higgs boson, and 1.5-10 for \\tan\\beta; (ii) To account for the dark matter relic density, besides the s-channel exchange of a Z-boson, the s-channel exchange of a light A_1 (the lightest CP-odd Higgs boson) can also play an important role in LSP annihilation. Compared with the Z-exchange annihilation channel, the A_1 exchange channel is more favored by muon g-2 data and allows much broader regions for the parameters; (iii) In a large part of the allowed parameter space the SM-like Higgs boson may dominantly decay to LSP pair or A_1 pair and the conventional visible decays (e.g. into bottom quarks) are severely suppressed.", "revisions": [ { "version": "v2", "updated": "2009-05-11T10:52:06.000Z" } ], "analyses": { "subjects": [ "12.60.Jv", "14.80.Cp", "12.60.Fr", "11.30.Qc" ], "keywords": [ "lightest cp-odd higgs boson", "parameter space", "s-channel exchange", "dark matter relic density", "implications" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2009, "month": "May", "volume": 79, "number": 9, "pages": "091701" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 810749, "adsabs": "2009PhRvD..79i1701C" } } }