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Measurement of hadron and lepton-pair production from e+e− annihilation at centre-of-mass energies of 130 and 136 GeV

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  • ALEPH Collaboration
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<mark>Journal publication date</mark>1996
<mark>Journal</mark>Physics Letters B
Issue number1-4
Volume378
Number of pages12
Pages (from-to)373-384
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

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.