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
FERRONI, Fernando
1997-01-01
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.File in questo prodotto:
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