{ "id": "hep-ph/0502095", "version": "v1", "published": "2005-02-10T18:34:08.000Z", "updated": "2005-02-10T18:34:08.000Z", "title": "Supersymmetry and precision data after LEP2", "authors": [ "Guido Marandella", "Christian Schappacher", "Alessandro Strumia" ], "comment": "16 pages", "journal": "Nucl.Phys.B715:173-189,2005", "doi": "10.1016/j.nuclphysb.2005.03.001", "categories": [ "hep-ph" ], "abstract": "We study one loop supersymmetric corrections to precision observables. Adding LEP2 e ebar --> f fbar cross sections to the data-set removes previous hints for SUSY and the resulting constraints are in some cases stronger than direct bounds on sparticle masses. We consider specific models: split SUSY, CMSSM, gauge mediation, anomaly and radion mediation. Beyond performing a complete one-loop analysis, we also develop a simple approximation, based on the Shat, That, W, Y `universal' parameters. SUSY corrections give W,Y > 0 and mainly depend on the left-handed slepton and squark masses, on M_2 and on mu.", "revisions": [ { "version": "v1", "updated": "2005-02-10T18:34:08.000Z" } ], "analyses": { "subjects": [ "12.60.Jv", "12.15.Lk" ], "keywords": [ "precision data", "supersymmetry", "loop supersymmetric corrections", "fbar cross sections", "complete one-loop analysis" ], "tags": [ "journal article" ], "publication": { "publisher": "Elsevier", "journal": "Nucl. Phys. B" }, "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "inspire": 676552 } } }