Abstract

High energy e + e − collisions have provided a large amount of information and contributed considerably to our understanding of particle physics. Fermion pair and photon pair production have been extensively studied at LEP2, covering the large range of centre of mass energy from 130 to 208 GeV. In this paper, the available combined measurements of the four LEP experiments are given for these two processes. At the end, and with these results, limits upon a subset of possible extensions of the SM are derived.

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