@article{d125bbb0e28440b78573d2d5670d11ed,

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

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 script O sign(α4) QED expectation.",

author = "{L3 Collaboration} and M. Aceiarri and O. Adriani and M. Aguilar-Benitez and S. Ahlen and J. Alcaraz and G. Alemanni and J. Allaby and A. Aloisio and G. Alverson and Alviggi, {M. G.} and G. Ambrosi and H. Anderhub and Andreev, {V. P.} and T. Angelescu and F. Anselmo and A. Arefiev and T. Azemoon and T. Aziz and P. Bagnaia and L. Baksay and Ball, {R. C.} and S. Banerjee and Sw Banerjee and K. Banicz and A. Barczyk and R. Barill{\`e}re and L. Barone and P. Bartalini and A. Baschirotto and M. Basile and R. Battiston and A. Bay and F. Beeattini and U. Becker and F. Behner and J. Berdugo and P. Berges and B. Bertucci and Betev, {B. L.} and S. Bhattacharya and M. Biasini and A. Biland and Bilei, {G. M.} and Blaising, {J. J.} and Blyth, {S. C.} and Bobbink, {G. J.} and R. Bock and A. B{\"o}hm and L. Boldizsar and C. Tully",

note = "Publisher Copyright: {\textcopyright} 1997 Elsevier Science B.V.",

year = "1997",

month = sep,

day = "4",

doi = "10.1016/S0370-2693(97)00731-4",

language = "English (US)",

volume = "407",

pages = "341--350",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier",

number = "3-4",

}