Test of the four fermion contact interaction in e+ e- collisions at 130-GeV - 140-GeV - INSPIRE

DataBETA

Test of the four fermion contact interaction in e+ e- collisions at 130-GeV - 140-GeV

OPAL

Collaboration

Jul, 1996

16 pages

Published in:

Phys.Lett.B 387 (1996) 432-442

DOI:

10.1016/0370-2693(96)01156-2

Report number:

CERN-PPE-96-098,
CERN-PPE-96-98

Experiments:

CERN-LEP-OPAL

View in:

reference search33 citations

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Abstract: (Elsevier)

The differential cross-sections for e + e − → e + e − , e + e − → μ + μ − and e + e − → τ + τ − , and the total cross-section for e + e − → qq̄ at centre-of-mass energies of 130–140 GeV were studied using about 5 pb −1 of data collected with the OPAL detector at LEP in October and November 1995. The results are in agreement with the Standard Model predictions. Four-fermion contact interaction models were fitted to the data and lower limits were obtained on the energy scale Λ at the 95% confidence level.

electron positron: colliding beams
electron positron: annihilation
electron: electroproduction
muon: electroproduction
tau: electroproduction
quark: electroproduction
fermion: pair production
new interaction: four-fermion interaction
model: composite
differential cross section: angular dependence

References(25)

Figures(0)

Measurement of cross-sections and asymmetries in e+ e- collisions at 130-GeV - 140-GeV center-of-mass energy

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