Measurements of alpha-s in e+ e- annihilation at TRISTAN - INSPIRE

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Measurements of alpha-s in e+ e- annihilation at TRISTAN

TOPAZ

Collaboration

•

Y. Ohnishi
(
- Nagoya U.
)

Jul, 1993

17 pages

Published in:

Phys.Lett.B 313 (1993) 475-482

DOI:

10.1016/0370-2693(93)90022-A

Report number:

DPNU-93-27,
KEK-PREPRINT-93-73,
TUAT-HEP-93-03,
INS-999,
TIT-HEP-93-06,
NWU-HEP-93-04,
TU-HEP-93-02,
OCU-HEP-93-05,
PU-93-672

Experiments:

KEK-TE-002

View in:

ADS Abstract Service

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Abstract: (Elsevier)

The strong coupling constant α s was determined from analyses of the thrust, heavy jet mass and, differential 2-jet rate, using e + e - hadronic events at s = 58 GeV with the TOPAZ detector at TRISTAN. The NLLjet Monte Carlo simulation (NLLjet) and analytic formulae based on resummation up to the next-to-leading logarithms combined with O ( α 2 s ) calculations were used to evaluate α s . The average α s values at Q 2 = (58 GeV) 2 from the analyses are α s = 0.125 ± 0.009 for NLLjet and α s = 0.132 ± 0.008 for the resummed analytic formulae.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
coupling constant: strong interaction
strong interaction: coupling constant
jet: electroproduction
electroproduction: jet
jet: pair production
pair production: jet

References(29)

Figures(0)

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