{ "id": "hep-ph/0312148", "version": "v2", "published": "2003-12-11T14:52:16.000Z", "updated": "2003-12-16T13:14:15.000Z", "title": "The electric charge at the two-loop level in the Standard Model and the precision measurements of Delta alpha_{had}", "authors": [ "Alessandro Vicini" ], "comment": "Talk given at the workshop SIGHAD03, Pisa, 8-10 October 2003, two references added", "doi": "10.1016/S0920-5632(04)00018-0", "categories": [ "hep-ph" ], "abstract": "The complete calculation of the 2-loop electroweak corrections to the renormalization of the electric charge in the Standard Model allows to discuss in detail the value of the MSbar effective coupling $\\hat e(m_Z)$. We discuss the phenomenological impact of these results in view of the increasing accuracy in the measurements of the cross-section of the reaction e+e- -->hadrons at low energies.", "revisions": [ { "version": "v2", "updated": "2003-12-16T13:14:15.000Z" } ], "analyses": { "keywords": [ "standard model", "electric charge", "two-loop level", "precision measurements", "complete calculation" ], "tags": [ "journal article" ], "publication": { "journal": "Nuclear Physics B Proceedings Supplements", "year": 2004, "month": "Apr", "volume": 131, "pages": 112 }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 635258, "adsabs": "2004NuPhS.131..112V" } } }