Measurement of hadron and lepton pair production from $e^{+} e^{-}$ annihilation at center-of-mass energies of 130-GeV and 136-GeV

Hadronic and leptonic cross-sections and forward-backward asymmetries are measured using 5.7 pb −1 of data taken with the ALEPH detector at LEP at centre-of-mass energies of 130 and 136 GeV. The results agree with Standard Model expectations. The measurement of hadronic cross-sections far away from the Z resonance improves the determination of the interference between photon and Z exchange. Constraints on models with extra Z bosons are presented.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
quark: pair production
pair production: quark
hadron: multiple production
multiple production: hadron
lepton: pair production
pair production: lepton

References(35)

Figures(0)

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