The total and differential cross sections of the process e(+)e(-) --> n gamma with n greater than or equal to 2 are measured using data collected by the L3 experiment at centre-of-mass energies of root s = 183 and 189 GeV, The results are in agreement with the Standard Model expectations. Limits are set on deviations from QED, contact interaction cut-off parameters and masses of excited electrons. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

Hard-photon production and tests of QED at LEP / Acciarri, M., Achard, P., Adriani, O., AGUILAR BENITEZ, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M.g., Ambrosi, G., Anderhub, H., Andreev, V.p., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Balandras, A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 475:(2000), pp. 198-205. [10.1016/S0370-2693(00)00082-4]

Hard-photon production and tests of QED at LEP

BAGNAIA, Paolo;FACCINI, Riccardo;FERRONI, Fernando;GENTILE, Simonetta;GIAGU, Stefano;LUCI, Claudio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;
2000

Abstract

The total and differential cross sections of the process e(+)e(-) --> n gamma with n greater than or equal to 2 are measured using data collected by the L3 experiment at centre-of-mass energies of root s = 183 and 189 GeV, The results are in agreement with the Standard Model expectations. Limits are set on deviations from QED, contact interaction cut-off parameters and masses of excited electrons. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
2000
01 Pubblicazione su rivista::01a Articolo in rivista
Hard-photon production and tests of QED at LEP / Acciarri, M., Achard, P., Adriani, O., AGUILAR BENITEZ, M., Alcaraz, J., Alemanni, G., Allaby, J., Aloisio, A., Alviggi, M.g., Ambrosi, G., Anderhub, H., Andreev, V.p., Angelescu, T., Anselmo, F., Arefiev, A., Azemoon, T., Aziz, T., Bagnaia, P., Baksay, L., Balandras, A., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 475:(2000), pp. 198-205. [10.1016/S0370-2693(00)00082-4]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/248061
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