Determination of alpha-s from the scaling violation in the fragmentation functions in e+ e- annihilation - INSPIRE

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Determination of alpha-s from the scaling violation in the fragmentation functions in e+ e- annihilation

DELPHI

Collaboration

Apr, 1993

25 pages

Published in:

Phys.Lett.B 311 (1993) 408-424

DOI:

10.1016/0370-2693(93)90587-8

Report number:

CERN-PPE-93-69

Experiments:

CERN-LEP-DELPHI

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Abstract: (Elsevier)

A determination of the hadronic fragmentation functions of the Z 0 boson is presented from a study of the inclusive hadron production with the DELPHI detector at LEP. These fragmentation functions were compared with the ones at lower energies, thus covering data in a large kinematic range: 196 ⩽ Q 2 ⩽ 8312 GeV 2 and x (= P h E beam ) > 0.08 . A large scaling violation was observed, which was used to extract the strong coupling constant in second order QCD: α s ( M Z ) = 0.118 ± 0.005. The corresponding QCD scale for five quark flavours is: Λ (5) MS = 230 ± 60 MeV .

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
electron positron: inclusive reaction
Z0: electroproduction
electroproduction: Z0
Z0: nonleptonic decay
nonleptonic decay: Z0
hadron: electroproduction

References(46)

Figures(0)

A Measurement of alpha-s and higher twists from a QCD analysis of high statistics F-2 data on hydrogen and deuterium targets

Marc Virchaux
(
- Saclay
)
,
Alain Milsztajn
(
- Saclay
)

- Phys.Lett.B 274 (1992) 221-229
•
DOI:
- 10.1016/0370-2693(92)90527-B

- Phys.Lett.B 266 273

Electroweak parameters of the $Z^0$ resonance and the Standard Model: the LEP Collaborations

LEP and
ALEPH and
DELPHI and
L3 and
OPAL

Collaborations

•

G. Alexander

et al.

- Phys.Lett.B 276 (1992) 247-253
•
DOI:
- 10.1016/0370-2693(92)90572-L

Measurement of the strong coupling constant alpha-s from global event shape variables of hadronic Z decays

ALEPH

Collaboration

•

D. Decamp
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 255 (1991) 623-633
•
DOI:
- 10.1016/0370-2693(91)90278-X

Measurement of alpha-s from the structure of particle clusters produced in hadronic Z decays

ALEPH

Collaboration

•

D. Decamp
(
- Annecy, LAPP
)

et al.

- Phys.Lett.B 257 (1991) 479-491
•
DOI:
- 10.1016/0370-2693(91)91926-M

A Comparison of jet production rates on the Z0 resonance to perturbative QCD

DELPHI

Collaboration

•

P. Abreu
(
- LIP, Lisbon
)

et al.

- Phys.Lett.B 247 (1990) 167-176
•
DOI:
- 10.1016/0370-2693(90)91065-J

A Measurement of energy correlations and a determination of alpha-s (M2 (Z0)) in e+ e- annihilations at s**(1/2) = 91-GeV

OPAL

Collaboration

•

M.Z. Akrawy
(
- Queen Mary, U. of London
)

et al.

- Phys.Lett.B 252 (1990) 159-169
•
DOI:
- 10.1016/0370-2693(90)91098-V

Determination of alpha(s) in second order QCD from hadronic Z decays

DELPHI

Collaboration

•

P. Abreu

et al.

- Z.Phys.C 54 (1992) 55-74
•
DOI:
- 10.1007/BF01881708

Determination of alpha-s from jet multiplicities measured on the Z0 resonance

L3

Collaboration

•

B. Adeva
(
- CERN
)

et al.

- Phys.Lett.B 248 (1990) 464-472
•
DOI:
- 10.1016/0370-2693(90)90323-X

Measurement of the strong coupling constant alpha-s for bottom quarks at the Z0 resonance

L3

Collaboration

•

B. Adeva
(
- CERN
)

et al.

- Phys.Lett.B 271 (1991) 461-467
•
DOI:
- 10.1016/0370-2693(91)90118-A

Determination of alpha-s from hadronic event shapes measured on the Z0 resonance

L3

Collaboration

•

O. Adrian
(
- Florence U. and
- INFN, Florence
)

et al.

- Phys.Lett.B 284 (1992) 471-481
•
DOI:
- 10.1016/0370-2693(92)90463-E

A Study of Jet Production Rates and a Test of QCD on the Z0 Resonance

OPAL

Collaboration

•

M.Z. Akrawy
(
- Queen Mary, U. of London
)

et al.

- Phys.Lett.B 235 (1990) 389-398
•
DOI:
- 10.1016/0370-2693(90)91983-I

A Study of the recombination scheme dependence of jet production rates and of alpha-s (m(Z0)) in hadronic Z0 decays

OPAL

Collaboration

•

M.Z. Akrawy

et al.

- Z.Phys.C 49 (1991) 375-384
•
DOI:
- 10.1007/BF01549689

Tests of QCD at LEP

Siegfried Bethke
(
- Heidelberg U.
)

- Nucl.Phys.A 546 (1992) 247-268
•
DOI:
- 10.1016/0375-9474(92)90514-K

Tests of perturbative QCD at LEP

S. Bethke
(
- Heidelberg U.
)
,
J.E. Pilcher
(
- Chicago U. and
- Chicago U., EFI
)

- Ann.Rev.Nucl.Part.Sci. 42 (1992) 251-289,
•
DOI:
- 10.1146/annurev.ns.42.120192.001343

Tests of quantum chromodynamics in hadronic decays of $Z^0$ bosons produced in $e^{+} e^{-}$ annihilation

T. Hebbeker
(
- Aachen, Tech. Hochsch.
)

- Phys.Rept. 217 (1992) 69-157
•
DOI:
- 10.1016/0370-1573(92)90181-X

Global Jet Properties at 14-{GeV} to 44-{GeV} Center-of-mass Energy in $e^+ e^-$ Annihilation

TASSO

Collaboration

•

W. Braunschweig
(
- Aachen, Tech. Hochsch.
)

et al.

- Z.Phys.C 47 (1990) 187-198
•
DOI:
- 10.1007/BF01552339

Multi - Hadronic Events at E(c.m.) = 29-GeV and Predictions of QCD Models from E(c.m.) = 29-GeV to E(c.m.) = 93-GeV

et al.

- Phys.Rev.D 37 (1988) 1
•
DOI:
- 10.1103/PhysRevD.37.1

Scale Breaking in Inclusive Charged Particle Production by $e^+ e^-$ Annihilation

TASSO

Collaboration

•

R. Brandelik
(
- Aachen, Tech. Hochsch.
)

et al.

- Phys.Lett.B 114 (1982) 65,
- Phys. Lett. B114 (1982) 65-70 and Hamburg Desy - DESY 82-013 (82,REC.MAR.) 14p
•
DOI:
- 10.1016/0370-2693(82)90017-X

The DELPHI detector at LEP

DELPHI

Collaboration

•

P.A. Aarnio

et al.

- Nucl.Instrum.Meth.A 303 (1991) 233-276
•
DOI:
- 10.1016/0168-9002(91)90793-P

Study of Hadronic Decays of the $\Z^0$ Boson

DELPHI

Collaboration

•

P. Aarnio
(
- Helsinki U.
)

et al.

- Phys.Lett.B 240 (1990) 271-282
•
DOI:
- 10.1016/0370-2693(90)90445-C

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

Electromagnetic Radiative Corrections at LEP - SLC Energies for Experimentalists

Jean-Eric Campagne
(
- Paris U., VI-VII
)
,
R. Zitoun
(
- Paris U., VI-VII
)

- Z.Phys.C 43 (1989) 469
•
DOI:
- 10.1007/BF01506543

Multi - hadron event properties in $e^+e^-$ annihilation at $\sqrt{s} = 52$ GeV to 57-GeV

AMY

Collaboration

•

Y.K. Li
(
- Beijing, Inst. High Energy Phys. and
- South Carolina U.
)

et al.

- Phys.Rev.D 41 (1990) 2675
•
DOI:
- 10.1103/PhysRevD.41.2675

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