1
A combined analysis of the data from ALEPH, DELPHI, L3, and OPAL.
2SCHAEL 2007A limits are from $\mathit R_{c}$, $\mathit Q{}^{depl}_{FB}$, and hadronic cross section measurements.
3ABBIENDI 2004G limits are from ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ cross section at $\sqrt {s }$ = $130 - 207~$GeV.
References:
SCHAEL
2007A
EPJ C49 411
Fermion Pair Production in ${{\mathit e}^{+}}{{\mathit e}^{-}}$ Collisions at $189 - 209$ GeV and Constraints on Physics Beyond the Standard Model
ABDALLAH
2006C
EPJ C45 589
Measurement and Interpretation of Fermion-Pair Production at LEP Energies above the ${{\mathit Z}}$ Resonance
ABBIENDI
2004G
EPJ C33 173
Tests of the Standard Model and Constraints on New Physics from Measurements of Fermion Pair Production at 189 to 209 GeV at LEP
BOURILKOV
2001
PR D64 071701
Hint for Axial Vector Contact Interactions in the Data on ${{\mathit e}^{+}}$ ${{\mathit e}^{-}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$( ${{\mathit \gamma}}$) at Center-of-mass Energies $192 - 208$ GeV
ACCIARRI
2000P
PL B489 81
Search for Manifestations of New Physics in Fermion Pair Production at LEP