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 O(α4) QED expectation.
- Publication:
-
Physics Letters B
- Pub Date:
- February 1997
- DOI:
- 10.1016/S0370-2693(97)00731-4
- Bibcode:
- 1997PhLB..407..341A