Determination of gamma/Z interference in e+e- annihilation at LEP

Details Determination of gamma/Z interference in e+e- annihilation at LEP Determination of gamma/Z interference in e+e- annihilation at LEP

2000-07-03

arxiv.org/abs/hep-ex/0007006v1

Phys.Lett.B489:93-101,2000

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

10.1016/S0370-2693(00)00889-3

An S-Matrix ansatz is used to determine the mass and width of the Z boson, as well as the contributions of gamma/Z interference and Z boson exchange to fermion-pair production. For this purpose we use hadron and lepton-pair production cross sections and lepton forward-backward asymmetries that have been measured with the L3 detector at centre-of-mass energies between 87GeV and 189GeV.

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