Production of e, μ and τ pairs in untagged two-photon collisions at LEP

L3 Collaboration

doi:10.1016/S0370-2693(97)00731-4

Scientific article

English

Production of e, μ and τ pairs in untagged two-photon collisions at LEP

ContributorsL3 Collaboration

CollaboratorsAmbrosi, Giovanni; Bourquin, Maurice; Braccini, Saverio; Burger, William; Paus-Cecchi, Claudia; Extermann, Pierre; Field, John; Fredj, Lotfi; Kienzle, Maria-Novella; Muheim, Franz; Produit, Nicolas

; Sciarrino, Deborah; Susinno, Gabriele

Published inPhysics Letters. B, vol. 407, p. 341-350

Publication date1997

Abstract

The two-photon collision reaction e⁺e⁻ → e⁺e⁻l⁺l⁻ has been studied at √s ≈ 91 GeV using the L3 detector at LEP for l = e, μ, τ. We have analysed untagged configurations where the two photons are quasi-real. Good agreement is found between our measurements and the Ο(α⁴) QED expectation.

Affiliation entities

Faculté des sciences / Section de physique / Département de physique nucléaire et corpusculaire

Citation (ISO format)

L3 Collaboration. Production of e, μ and τ pairs in untagged two-photon collisions at LEP. In: Physics Letters. B, 1997, vol. 407, p. 341–350. doi: 10.1016/S0370-2693(97)00731-4

Article (Published version)

CC BY

Identifiers

PID : unige:113060
DOI : 10.1016/S0370-2693(97)00731-4

Additional URL for this publicationhttps://doi.org/10.1016/S0370-2693(97)00731-4

Journal ISSN0370-2693

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Production of e, μ and τ pairs in untagged two-photon collisions at LEP

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