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 / M. Acciarri, P. Achard, O. Adriani, M. Aguilar-Benitez, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, A. Balandras, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 475:(2000), pp. 198-205. [10.1016/S0370-2693(00)00082-4]

Hard-photon production and tests of QED at LEP

ADRIANI, OSCAR;BECATTINI, FRANCESCO;D'ALESSANDRO, RAFFAELLO;
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
475
198
205
M. Acciarri;P. Achard;O. Adriani;M. Aguilar-Benitez;J. Alcaraz;G. Alemanni;J. Allaby;A. Aloisio;M. G. Alviggi;G. Ambrosi;H. Anderhub;V. P. ...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/775478
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