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Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the Standard Model

The ALEPH Collaboration
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Abstract

Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e+e-, mu+mu-, tau+tau-, qq, bb and cc production are in agreement with the Standard Model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z' bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.

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The ALEPH Collaboration. 2006-09-26. Fermion pair production in e+e- collisions at 189-209 GeV and constraints on physics beyond the Standard Model. https://doi.org/10.1140/epjc%2Fs10052-006-0156-8

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