Determination of $\gamma / Z$ interference in $e^{+} e^{-}$ annihilation at LEP - INSPIRE

DataBETA

Determination of $\gamma / Z$ interference in $e^{+} e^{-}$ annihilation at LEP

L3

Collaboration

Jun, 2000

13 pages

Published in:

Phys.Lett.B 489 (2000) 93-101

e-Print:

hep-ex/0007006 [hep-ex]

DOI:

10.1016/S0370-2693(00)00889-3

PDG:

{{\mathit Z}}

Report number:

CERN-EP-2000-084,
CERN-EP-2000-84

Experiments:

CERN-LEP-L3

View in:

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Abstract: (Elsevier)

An S-Matrix ansatz is used to determine the mass and width of the Z boson, as well as the contributions of γ /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 87 GeV and 189 GeV.

electron positron: colliding beams
electron positron: annihilation
fermion: pair production
Z0: mass
Z0: width
S-matrix
interference: (Z0 photon)
Z0: exchange
quark: pair production
lepton: pair production

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