Comparison of a new calculation of energy-energy correlations with e+e-→ hadrons data at the Z0 resonance

SLD Collaboration

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We have compared a new QCD calculation by Clay and Ellis of energy-energy correlations (EEC's) and their asymmetry (AEEC's) in e+e- annihilation into hadrons with data collected by the SLD experiment at SLAC. From fits of the new calculation, complete at O(αs2), we obtained αs(MZ2)=0. 1184±0.0031(expt)±0.0129(theory) (EEC) and αs(MZ2)=0. 1120±0.0034(expt)±0.0036(theory) (AEEC). The EEC result is significantly lower than that obtained from comparable fits using the O(αs2) calculation of Kunszt and Nason.

Original languageEnglish (US)
Pages (from-to)4240-4244
Number of pages5
JournalPhysical Review D
Issue number7
StatePublished - 1995

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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