Measurement and interpretation of fermion-pair production at LEP energies above the Z resonance - INSPIRE

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Measurement and interpretation of fermion-pair production at LEP energies above the Z resonance

DELPHI

Collaboration

Oct, 2005

79 pages

Published in:

Eur.Phys.J.C 45 (2006) 589-632

e-Print:

hep-ex/0512012 [hep-ex]

DOI:

10.1140/epjc/s2005-02461-0

PDG: Scale Limits for Contact Interactions:

\Lambda\mathrm {({{\mathit e}} {{\mathit e}} {{\mathit e}} {{\mathit e}} )}

Report number:

CERN-PH-EP-2005-045

Experiments:

CERN-LEP-DELPHI

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Abstract:

This paper presents DELPHI measurements and interpretations of cross-sections, forward-backward asymmetries, and angular distributions, for the e+e- -> ffbar process for centre-of-mass energies above the Z resonance, from sqrt(s) ~ 130 - 207 GeV at the LEP collider. The measurements are consistent with the predictions of the Standard Model and are used to study a variety of models including the S-Matrix ansatz for e+e- -> ffbar scattering and several models which include physics beyond the Standard Model: the exchange of Z' bosons, contact interactions between fermions, the exchange of gravitons in large extra dimensions and the exchange of sneutrino in R-parity violating supersymmetry.

Note:

Dedicated to the memory of Alan Segar

electron positron: colliding beams
electron positron: annihilation
fermion: pair production
differential cross section
angular distribution: asymmetry
electroweak interaction: validity test
S-matrix
Z': exchange
new interaction: contact interaction
graviton: exchange

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