Comparison of a new calculation of energy-energy correlations with {ital e}{sup +}{ital e}{sup {minus}}{r_arrow} hadrons data at the {ital Z}{sup 0} resonance
We have compared a new QCD calculation by Clay and Ellis of energy-energy correlations (EEC`s) and their asymmetry (AEEC`s) in {ital e}{sup +}{ital e}{sup {minus}} annihilation into hadrons with data collected by the SLD experiment at SLAC. From fits of the new calculation, complete at {ital O}({alpha}{sub {ital s}}{sup 2}), we obtained {alpha}{sub {ital s}}({ital M}{sub {ital Z}}{sup 2})=0.1184{plus_minus}0.0031(expt){plus_minus}0.0129(theory) (EEC) and {alpha}{sub {ital s}}({ital M}{sub {ital Z}}{sup 2})=0.1120{plus_minus}0.0034(expt){plus_minus}0.0036(theory) (AEEC). The EEC result is significantly lower than that obtained from comparable fits using the {ital O}({alpha}{sub {ital s}}{sup 2}) calculation of Kunszt and Nason.
- OSTI ID:
- 251122
- Journal Information:
- Physical Review, D, Vol. 52, Issue 7; Other Information: PBD: 1 Oct 1995
- Country of Publication:
- United States
- Language:
- English
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