P. Schmitz

TL;DR: The L3 experiment as discussed by the authors is one of the six large detectors designed for the new generation of electron-positron accelerators, which is the only detector that concentrates its efforts on limited goals of measuring electrons, muons and photons.

TL;DR: In this paper, the number of light neutrino species is found to be Nv=3.30% CL with the constraints of the standard electroweak model, which rules out the possibility of a fourth type of LN at 98% CL.

TL;DR: In this article, the design and construction of the silicon strip microvertex detector (SMD) of the L3 experiment at LEP are described and the sensors, readout electronics, data acquisition system, mechanical assembly and support, displacement monitoring systems and radiation monitoring system of the recently installed double-sided, double-layered SMD.

TL;DR: The first physics runs of the L3 detector at LEP were reported in this article, where the authors determined the mass m z 0 and the width Γ z 0 of the intermediate vector boson Z 0 to bem z 0 =91.132±0.057 GeV (not including the 46 MeV LEP machine energy uncertainty).

TL;DR: In this paper, the authors used a combination of a BGO calorimeter and a 3-layer silicon tracker with an experimental precision of 0.08% in 1993 and 0.05% in 1994.