L3 plots for talks, seminars, conferences


Preliminary results at 183 GeV


Cross sections as function of the centre-of-mass energy.
Lepton forward-backward asymmetries as function of the centre-of-mass energy.
Evolution of the mean thrust value with the centre-of-mass energy.
Evolution of the average charge multiplicity with the centre-of-mass energy.
Total cross section e+e- --> WW as function of the centre-of-mass energy.
Measured cross-sections e+e- --> gg(g) as function of the centre-of-mass energy.

Preliminary results on New Particle Searches at 183 GeV


A Hnunu candidate event and the number of expected Higgs signal events as function of the Higgs mass together with the mass limit.
Distribution of the sum of di-jet masses for the smallest and second smallest di-jet mass difference.
A candidate event for selectron pair production and the chargino exclusion for Delta M = 10 GeV.
Upper limit of the coupling constant for excited leptons as function of the mass.
Combined limits on QED deviations and measured ee --> gamma gamma cross sections as function of the centre-of-mass energy.


Two-photon physics


Hadron production in gamma-gamma collisions

From L3 paper 116
From L3 paper 116
From L3 paper 116
From L3 paper 116
From L3 paper 116
From L3 paper 116

Tau physics


Tau polarisation

Tau polarisation versus cos theta

QCD


alpha_s

Measurements of the strong coupling constant between 30 and 172 GeV

W physics


ee --> WW cross section

Cross section ee-->WW as function of the centre-of-mass energy (161-172 GeV)

W mass measurement

Invariant mass distribution at 172 GeV all channels

Triple gauge boson couplings

Contour in the Delta_kappa / Delta_z plane

Single W production

Single W candidate event
Limits on anomalous W-photon couplings: Delta kappa_gamma versus Lambda_gamma

Other searches


Excited Leptons

Limits on excited leptons in the mass-coupling plane (from L3 note 2074)
Limits on coupling constant as function on excited neutrino mass(from L3 note 2074)

Higgs searches


Standard Model Higgs limit

Limit on the Standard Model Higgs boson

SUSY searches


Chargino, neutralino and slepton search

Upper linmits on production cross sections for scalar electrons, muons and taus as function of the mass of the lightest neutralino.
Upper limits on chargino production cross section in the chargino- neutralino mass plane assuming standard W branching ratio and purely leptonic W decays.
Upper limits on neutralino_1 - neutralino_2 cross section in their mass plane.
Mass limits on scalar partners of right-handed electrons, muons as function of the neutralino mass; and mass limits on scalar leptons combining all searches.
Exclusion regions in the M_2 - mu plane for m_0 = 500 GeV and tan beta =1.41 and 40.
Mass limits as function of M_2 for the second lightest neutralino and the lightest chargino.
Mass limit for the lightest chargino as function of the scalar neutrino mass.
Limits on the lightest neutralino as function of m_0 for various tan beta and limit on the lightest neutralino as function of tan beta for any m_0.