{ "id": "hep-ph/0112184", "version": "v1", "published": "2001-12-13T17:02:37.000Z", "updated": "2001-12-13T17:02:37.000Z", "title": "Radiative return at NLO and the measurement of the hadronic cross-section in electron-positron annihilation", "authors": [ "G. Rodrigo", "H. Czyz", "J. H. Kuhn", "M. Szopa" ], "comment": "13 pages, 15 figures", "journal": "Eur.Phys.J.C24:71-82,2002", "doi": "10.1007/s100520200912", "categories": [ "hep-ph" ], "abstract": "Electron-positron annihilation into hadrons plus an energetic photon from initial state radiation allows the hadronic cross-section to be measured over a wide range of energies. The full next-to-leading order QED corrections for the cross-section for e^+ e^- annihilation into a real tagged photon and a virtual photon converting into hadrons are calculated where the tagged photon is radiated off the initial electron or positron. This includes virtual and soft photon corrections to the process e^+ e^- \\to \\gamma +\\gamma^* and the emission of two real hard photons: e^+ e^- \\to \\gamma + \\gamma + \\gamma^*. A Monte Carlo generator has been constructed, which incorporates these corrections and simulates the production of two charged pions or muons plus one or two photons. Predictions are presented for centre-of-mass energies between 1 and 10 GeV, corresponding to the energies of DAPHNE, CLEO-C and B-meson factories.", "revisions": [ { "version": "v1", "updated": "2001-12-13T17:02:37.000Z" } ], "analyses": { "keywords": [ "electron-positron annihilation", "hadronic cross-section", "radiative return", "measurement", "monte carlo generator" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "inspire": 568265 } } }