Measurements of $\alpha^- s$ in $e^+ e^-$ Annihilation at $\sqrt{s}=53$.3-{GeV} and 59.5-{GeV} - INSPIRE

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Measurements of $\alpha^- s$ in $e^+ e^-$ Annihilation at $\sqrt{s}=53$ .3-{GeV} and 59.5-{GeV}

TOPAZ

Collaboration

•

I. Adachi
(
- Nagoya U. and
- Tokyo Inst. Tech.
)

Jul, 1989

6 pages

Published in:

Phys.Lett.B 227 (1989) 495-500

Published: 1989

DOI:

10.1016/0370-2693(89)90969-6

Report number:

KEK-Preprint-89-37

Experiments:

KEK-TE-002

View in:

ADS Abstract Service

reference search70 citations

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Abstract: (Elsevier)

We studied the energy-energy correlation (EEC) and its asymmetry (AEEC) using e + e − hadronic annihilation events obtained at √ s =53.3 GeV and 59.5 GeV with the TOPAZ detector at the TRISTAN collider. We used a Monte Carlo simulation combined with the QCD matrix elements by Gottschalk and Shatz and the Lund string fragmentation model. By comparing the experimental data with simulated events, we determined the strong coupling constant α s at both energies. The results are 0.129±0.007 (stat) ±0.010 (syst) at √ s =53.3 GeV and 0.122±0.008 (stat) ±0.010 (syst) at 59.5 GeV.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
COUPLING CONSTANT: STRONG INTERACTION
STRONG INTERACTION: COUPLING CONSTANT
ENERGY: CORRELATION
CORRELATION: ASYMMETRY
TOPAZ
EXPERIMENTAL RESULTS

References(23)

Figures(0)

Determinations of the QCD Strong Coupling alpha-s and the Scale Lambda (QCD)

D.W. Duke
(
- Florida State U.
)
,
R.G. Roberts
(
- Rutherford
)

- Phys.Rept. 120 (1985) 275
•
DOI:
- 10.1016/0370-1573(85)90112-7

Next-To-Leading O(alpha-s**3) QCD Correction to Sigma-t (e+ e- ---> Hadrons): Analytical Calculation and Estimation of the Parameter Lambda (MS)

S.G. Gorishnii
(
- Dubna, JINR
)
,
A.L. Kataev
(
- Moscow, INR and
- Dubna, JINR
)
,
S.A. Larin
(
- Moscow, INR and
- Dubna, JINR
)

- Phys.Lett.B 212 (1988) 238-244,
- Smolenice Hadron Str.1987:180
•
DOI:
- 10.1016/0370-2693(88)90532-1

Energy Correlations in electron - Positron Annihilation: Testing QCD

- Phys.Rev.Lett. 41 (1978) 1585
•
DOI:
- 10.1103/PhysRevLett.41.1585

Energy Correlations in electron-Positron Annihilation in Quantum Chromodynamics: Asymptotically Free Perturbation Theory

C.L. Basham
(
- Washington U., Seattle
)
,
L.S. Brown
(
- Washington U., Seattle
)
,
S.D. Ellis
(
- Washington U., Seattle
)
,
S.T. Love
(
- Washington U., Seattle
)

- Phys.Rev.D 19 (1979) 2018
•
DOI:
- 10.1103/PhysRevD.19.2018

Energy-energy Correlations in Electron - Positron Annihilations

- Phys.Rev.D 24 (1981) 2383
•
DOI:
- 10.1103/PhysRevD.24.2383

The Topaz Inner Drift Chamber

et al.

- Nucl.Instrum.Meth.A 269 (1988) 513
•
DOI:
- 10.1016/0168-9002(88)90127-1

The Topaz Time Projection Chamber

et al.

- Nucl.Instrum.Meth.A 252 (1986) 423-430,
- Wire Chamber Conf.1986:0423
•
DOI:
- 10.1016/0168-9002(86)91217-9

A Laser Calibration System for the {KEK} Topaz Barrel {TOF} Counters. Its Performance and the Characteristics of Its Major Components

- Nucl.Instrum.Meth.A 254 (1987) 367-372,
- Nucl. Instrum. Methods A254 ( 1987) 367-372
•
DOI:
- 10.1016/0168-9002(87)90686-3

- Jap.J.Appl.Phys. 25 L440

TOPAZ BARREL ELECTROMAGNETIC CALORIMETER

et al.

- Nucl.Instrum.Meth.A 270 (1988) 11
•
DOI:
- 10.1016/0168-9002(88)90004-6

The Gas Sampling Electromagnetic Calorimeter Using Conductive Plastic Tubes

et al.

- Nucl.Instrum.Meth.A 256 (1987) 449
•
DOI:
- 10.1016/0168-9002(87)90288-9

The Topaz Luminosity Monitor at {KEK}

et al.

- Nucl.Instrum.Meth.A 271 (1988) 404-416
•
DOI:
- 10.1016/0168-9002(88)90299-9

TOPAZ TRIGGER SYSTEM

et al.

- Nucl.Instrum.Meth.A 269 (1988) 507
•
DOI:
- 10.1016/0168-9002(88)90126-X

- Nucl.Instrum.Meth.A 254 382

A Reassessment of the O ( $\alpha^- s^2$ ) Three Jet Cross-section for $e^+ e^-$ Annihilation

Thomas D. Gottschalk
(
- Caltech
)
,
Michael P. Shatz
(
- Caltech
)

- Phys.Lett.B 150 (1985) 451-454
•
DOI:
- 10.1016/0370-2693(85)90464-2

The Lund Monte Carlo for Jet Fragmentation and e+ e- Physics: Jetset Version 6.2

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)

- Comput.Phys.Commun. 39 (1986) 347-407
•
DOI:
- 10.1016/0010-4655(86)90096-2

The Lund Monte Carlo for Jet Fragmentation and e+ e- Physics. Jetset Version 6.3: An Update

- Comput.Phys.Commun. 43 (1987) 367
•
DOI:
- 10.1016/0010-4655(87)90054-3

Higher Order QCD Corrections to the Three Jet Cross-Sections: Bare Versus Dressed Jets

- Z.Phys.C 21 (1984) 235
•
DOI:
- 10.1007/BF01577037

Determination of $\alpha^- s$ From Energy-energy Correlations in $e^+ e^-$ Annihilation at 29-{GeV}

et al.

- Phys.Rev.D 37 (1988) 3091
•
DOI:
- 10.1103/PhysRevD.37.3091

A Measurement of Energy-energy Correlations in $e^+ e^- \to$ Hadrons at $\sqrt{s}=29$ -{GeV}

et al.

- Phys.Rev.D 31 (1985) 2724
•
DOI:
- 10.1103/PhysRevD.31.2724

Measurements of Energy Correlations in $e^+ e^- \to$ Hadrons

JADE

Collaboration

•

W. Bartel
(
- DESY
)

et al.

- Z.Phys.C 25 (1984) 231
•
DOI:
- 10.1007/BF01547922

Deep Inelastic Scattering Beyond the Leading Order in Asymptotically Free Gauge Theories

- Phys.Rev.D 18 (1978) 3998
•
DOI:
- 10.1103/PhysRevD.18.3998

Review of Particle Properties: Particle Data Group

et al.

- Phys.Lett.B 204 (1988) 1-486
•
DOI:
- 10.1016/0370-2693(88)90505-9