Measurement of αs(M2 Z) from hadronic event observables at the Z0 resonance

SLD Collaboration

研究成果: Article査読

114 被引用数 (Scopus)

抄録

The strong coupling αs(MZ2) has been measured using hadronic decays of Z0 bosons collected by the SLD experiment at SLAC. The data were compared with QCD predictions both at fixed order O(αs2) and including resummed analytic formulas based on the next-to-leading logarithm approximation. In this comprehensive analysis we studied event shapes, jet rates, particle correlations, and angular energy flow, and checked the consistency between αs(MZ2) values extracted from these different measures. Combining all results we obtain αs(MZ2)= 0.1200±0.0025 (expt) ±0.0078 (theor), where the dominant uncertainty is from uncalculated higher order contributions.

本文言語English
ページ(範囲)962-984
ページ数23
ジャーナルPhysical Review D
51
3
DOI
出版ステータスPublished - 1995

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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