Evidence for gluon interference in hadronic Z decays

Acciarri, M.; Adam, A.; Adriani, O.; Aguilar-Benitez, M.; Ahlen, S.P.; Alpat, B.; Alcaraz, J.; Allaby, J.; Aloisio, A.; Alverson, G.

doi:10.1016/0370-2693(95)00552-V

Evidence for gluon interference in hadronic Z decays

L3

Collaboration

Apr, 1995

15 pages

Published in:

Phys.Lett.B 353 (1995) 145-154

DOI:

10.1016/0370-2693(95)00552-V

Report number:

CERN-PPE-95-49,
CERN-PPE-95-049

Experiments:

CERN-LEP-L3

View in:

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Abstract: (Elsevier)

We present evidence for soft gluon interference, as required by QCD. This interference is expected to manifest itself in an angular ordering of the gluons radiated within a jet. Using hadronic decays of the Z boson in the L3 detector at LEP, we compare variables sensitive to such an angular ordering, namely the energy-energy correlation asymmetry and the newly introduced particle-particle correlation asymmetry, with the predictions of various parton shower models. Only those models which incorporate the expected interference agree with the data.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
Z0: electroproduction
electroproduction: Z0
Z0: nonleptonic decay
nonleptonic decay: Z0
showers: parton
gluon: radiation

References(29)

Figures(0)

Advantages of the Color Octet Gluon Picture

- Phys.Lett.B 47 (1973) 365-368,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 151-154
•
DOI:
- 10.1016/0370-2693(73)90625-4

Ultraviolet Behavior of Nonabelian Gauge Theories

David J. Gross
(
- Princeton U.
)
,
Frank Wilczek
(
- Princeton U.
)

- Phys.Rev.Lett. 30 (1973) 1343-1346,
- Also in *Rebbi, C. (Ed.): Lattice Gauge Theories and Monte Carlo Simulations*, 233-236,
•
DOI:
- 10.1103/PhysRevLett.30.1343

Asymptotically Free Gauge Theories - I

D.J. Gross
(
- Fermilab and
- Princeton U.
)
,
Frank Wilczek
(
- Princeton U.
)

- Phys.Rev.D 8 (1973) 3633-3652,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 247-266,
- In *Mohapatra, R. N. (Ed.), Lai, C. H. (Ed.): Gauge Theories Of Fundamental Interactions*, 337-356
•
DOI:
- 10.1103/PhysRevD.8.3633

Reliable Perturbative Results for Strong Interactions?

H.David Politzer
(
- Harvard U.
)

- Phys.Rev.Lett. 30 (1973) 1346-1349,
- Also in *Mohapatra, R. N. (Ed.), Lai, C. H. (Ed.): Gauge Theories Of Fundamental Interactions*, 333-336, and in *Rebbi, C. (Ed.): Lattice Gauge Theories and Monte Carlo Simulations*, 237-240,
- In *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 243-246,
•
DOI:
- 10.1103/PhysRevLett.30.1346

QCD Coherence in High-Energy Reactions

Yuri L. Dokshitzer
(
- St. Petersburg, INP
)
,
Valery A. Khoze
(
- St. Petersburg, INP
)
,
S.I. Troian
(
- St. Petersburg, INP
)
,
Alfred H. Mueller
(
- Columbia U.
)

- Rev.Mod.Phys. 60 (1988) 373
•
DOI:
- 10.1103/RevModPhys.60.373

Log - Log Asymptotic Form of Exclusive Cross-Sections in Quantum Chromodynamics

B.I. Ermolaev
(
- Novosibirsk, IYF
)
,
Victor S. Fadin
(
- Novosibirsk, IYF
)

- JETP Lett. 33 (1981) 269-272,
- Pisma Zh.Eksp.Teor.Fiz. 33 (1981) 285-288

On the Multiplicity of Hadrons in QCD Jets

Alfred H. Mueller
(
- Columbia U.
)

- Phys.Lett.B 104 (1981) 161-164
•
DOI:
- 10.1016/0370-2693(81)90581-5

Jet Multiplicity and Soft Gluon Factorization

A. Bassetto
(
- Trento U.
)
,
M. Ciafaloni
(
- Florence U. and
- Pisa, Scuola Normale Superiore
)
,
G. Marchesini
(
- Parma U. and
- INFN, Milan
)
,
Alfred H. Mueller
(
- Columbia U.
)

- Nucl.Phys.B 207 (1982) 189-204
•
DOI:
- 10.1016/0550-3213(82)90161-4

Simulation of QCD Jets Including Soft Gluon Interference

G. Marchesini
(
- Parma U. and
- INFN, Milan
)
,
B.R. Webber
(
- CERN
)

- Nucl.Phys.B 238 (1984) 1-29
•
DOI:
- 10.1016/0550-3213(84)90463-2

Similarity of Parton and Hadron Spectra in QCD Jets

Yakov I. Azimov
(
- St. Petersburg, INP
)
,
Yuri L. Dokshitzer
(
- St. Petersburg, INP
)
,
Valery A. Khoze
(
- St. Petersburg, INP
)
,
S.I. Troyan
(
- St. Petersburg, INP
)

- Z.Phys.C 27 (1985) 65-72
•
DOI:
- 10.1007/BF01642482

Jet Calculus: A Simple Algorithm for Resolving QCD Jets

- Nucl.Phys.B 157 (1979) 45-107
•
DOI:
- 10.1016/0550-3213(79)90053-1

Asymptotic Freedom in Parton Language

- Nucl.Phys.B 126 (1977) 298-318
•
DOI:
- 10.1016/0550-3213(77)90384-4

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

HERWIG: A Monte Carlo event generator for simulating hadron emission reactions with interfering gluons. Version 5.1 - April 1991

G. Marchesini
(
- Parma U. and
- INFN, Parma
)
,
B.R. Webber
(
- Cambridge U.
)
,
G. Abbiendi
(
- Padua U. and
- INFN, Padua
)
,
I.G. Knowles
(
- Glasgow U.
)
,
M.H. Seymour
(
- Cambridge U.
)

et al.

- Comput.Phys.Commun. 67 (1992) 465-508,
- Comput. Phys. Commun. 67 (1992) 465-508 and Hamburg DESY - DESY 91-048 (91/05,rec.Jul.) 49 p
•
DOI:
- 10.1016/0010-4655(92)90055-4

ARIADNE version 4: A Program for simulation of QCD cascades implementing the color dipole model

Leif Lonnblad
(
- DESY
)

- Comput.Phys.Commun. 71 (1992) 15-31,
- Comput. Phys. Commun. 71 (1992) 15-31 and Hamburg DESY - DESY 92-046 (92/02,rec.Apr.) 15 p
•
DOI:
- 10.1016/0010-4655(92)90068-A

- Comput.Phys.Commun. 72 235

The Perturbative Calculation of Jet Structure in e+ e- Annihilation

- Nucl.Phys.B 178 (1981) 421-456
•
DOI:
- 10.1016/0550-3213(81)90165-6

The String Effect and QCD Coherence

Yakov I. Azimov
(
- St. Petersburg, INP
)
,
Yuri L. Dokshitzer
(
- St. Petersburg, INP
)
,
Valery A. Khoze
(
- St. Petersburg, INP
)
,
S.I. Troian
(
- St. Petersburg, INP
)

- Phys.Lett.B 165 (1985) 147-150,
- Phys. Lett. B165 ( 1985) 147-150
•
DOI:
- 10.1016/0370-2693(85)90709-9

How to Find the Gluon Jets in e+ e- Annihilation

- Phys.Lett.B 94 (1980) 211-215
•
DOI:
- 10.1016/0370-2693(80)90861-8

Experimental Study of Jets in electron - Positron Annihilation

JADE

Collaboration

•

W. Bartel
(
- DESY
)

et al.

- Phys.Lett.B 101 (1981) 129-134
•
DOI:
- 10.1016/0370-2693(81)90505-0

Measurement of inclusive production of neutral hadrons from Z decays

L3

Collaboration

•

M. Acciarri

et al.

- Phys.Lett.B 328 (1994) 223-233,
- Phys. Lett. B328 (1994) 223-233. and CERN Geneva - CERN-PPE-94-053 (94/03,rec.Apr.) 19 p. C
•
DOI:
- 10.1016/0370-2693(94)90453-7