The two-photon collision reaction e(+)e(-) --> e(+)e(-)l(+)l(-) has been studied at root s approximate to 91 GeV using the L3 detector at LEP for l = e, mu, tau. We have analysed untagged configurations where the two photons are quasi-real. Good agreement is found between our measurements and the O(alpha(4)) QED expectation. (C) 1997 Elsevier Science B.V.

Production of e, mu and tau pairs in untagged two-photon collisions at LEP / M. Acciarri, O. Adriani, M. AguilarBenitez, S. Ahlen, J. Alcaraz, G. Alemanni, J. Allaby, A. Aloisio, G. Alverson, M. G. Alviggi, G. Ambrosi, H. Anderhub, V. P. Andreev, T. Angelescu, F. Anselmo, A. Arefiev, T. Azemoon, T. Aziz, P. Bagnaia, L. Baksay, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 407:(1997), pp. 341-350. [10.1016/S0370-2693(97)00731-4]

Production of e, mu and tau pairs in untagged two-photon collisions at LEP

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;
1997

Abstract

The two-photon collision reaction e(+)e(-) --> e(+)e(-)l(+)l(-) has been studied at root s approximate to 91 GeV using the L3 detector at LEP for l = e, mu, tau. We have analysed untagged configurations where the two photons are quasi-real. Good agreement is found between our measurements and the O(alpha(4)) QED expectation. (C) 1997 Elsevier Science B.V.
1997
407
341
350
M. Acciarri;O. Adriani;M. AguilarBenitez;S. Ahlen;J. Alcaraz;G. Alemanni;J. Allaby;A. Aloisio;G. Alverson;M. G. Alviggi;G. Ambrosi;H. Ande...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772875
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