Coherent soft particle production in Z decays into three jets
(1)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(1)
,
,
(2)
,
,
,
(1)
,
,
,
,
(3)
,
(4)
,
,
,
,
,
(1)
,
,
,
,
(1, 3)
,
,
,
(2)
,
(1)
,
,
,
,
,
(5)
,
,
,
,
,
,
,
,
(3)
,
,
,
,
,
,
,
(6)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(3)
,
,
,
,
,
,
,
(1)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(3)
,
,
,
,
,
,
,
,
,
,
,
(3)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(4)
,
,
,
(1)
,
(4)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(2)
,
,
,
,
(3)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(5)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(3)
,
,
,
,
,
,
(3)
,
,
,
,
,
,
,
(1)
,
,
,
,
,
,
(4)
,
,
,
,
,
,
,
(3)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(6)
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
,
(4)
,
,
,
,
,
,
,
,
,
,
,
(5)
,
,
,
,
,
,
,
,
,
1
2
3
4
5
6
2
3
4
5
6
P. Abreu
- Function : Author
W. Adam
- Function : Author
P. Adzic
- Function : Author
T. Albrecht
- Function : Author
T. Alderweireld
- Function : Author
R. Alemany-Fernandez
- Function : Author
T. Allmendinger
- Function : Author
P. Allport
- Function : Author
U. Amaldi
- Function : Author
N. Amapane
- Function : Author
S. Amato
- Function : Author
E. Anashkin
- Function : Author
A. Andreazza
- Function : Author
S. Andringa
- Function : Author
N. Anjos
- Function : Author
P. Antilogus
- Function : Author
- PersonId : 741722
- IdHAL : pierre-antilogus
- ORCID : 0000-0002-0389-5706
- IdRef : 116029315
W.-D. Apel
- Function : Author
S. Ask
- Function : Author
B. Asman
- Function : Author
A. Augustinus
- Function : Author
P. Baillon
- Function : Author
A. Ballestrero
- Function : Author
D. Bardin
- Function : Author
G.J. Barker
- Function : Author
A. Baroncelli
- Function : Author
M. Battaglia
- Function : Author
K.-H. Becks
- Function : Author
M. Begalli
- Function : Author
A. Behrmann
- Function : Author
N. Benekos
- Function : Author
A. Benvenuti
- Function : Author
C. Berat
- Function : Author
- PersonId : 739578
- IdHAL : corinne-berat
- ORCID : 0000-0001-8294-6294
- IdRef : 033505187
L. Berntzon
- Function : Author
D. Bertrand
- Function : Author
M. Besancon
- Function : Author
N. Besson
- Function : Author
M. Blom
- Function : Author
M. Bluj
- Function : Author
M. Bonesini
- Function : Author
M. Boonekamp
- Function : Author
P.S.L. Booth
- Function : Author
G. Borisov
- Function : Author
- PersonId : 755154
- ORCID : 0000-0002-4516-459X
O. Botner
- Function : Author
V. Bowcock
- Function : Author
I. Boyko
- Function : Author
- PersonId : 755203
- ORCID : 0000-0003-2787-1845
M. Bracko
- Function : Author
R. Brenner
- Function : Author
E. Brodet
- Function : Author
P. Bruckman
- Function : Author
L. Bugge
- Function : Author
P. Buschmann
- Function : Author
M. Calvi
- Function : Author
T. Camporesi
- Function : Author
V. Canale
- Function : Author
F. Carena
- Function : Author
N. Castro
- Function : Author
F. Cavallo
- Function : Author
M. Chapkin
- Function : Author
Ph. Charpentier
- Function : Author
P. Checchia
- Function : Author
R. Chierici
- Function : Author
P. Chliapnikov
- Function : Author
J. Chudoba
- Function : Author
U. Chung
- Function : Author
K. Cieslik
- Function : Author
P. Collins
- Function : Author
R. Contri
- Function : Author
F. Cossutti
- Function : Author
M.J. Costa
- Function : Author
D. Crennell
- Function : Author
J. Cuevas
- Function : Author
J. Dalmau
- Function : Author
T.Da Silva
- Function : Author
G. Della Ricca
- Function : Author
A. de Angelis
- Function : Author
W. de Boer
- Function : Author
C. de Clercq
- Function : Author
B. de Lotto
- Function : Author
- PersonId : 755199
- ORCID : 0000-0003-3624-4480
N. de Maria
- Function : Author
A. de Min
- Function : Author
L. de Paula
- Function : Author
L. Di Ciaccio
- Function : Author
A. Di Simone
- Function : Author
K. Doroba
- Function : Author
J. Drees
- Function : Author
M. Dris
- Function : Author
G. Eigen
- Function : Author
T. Ekelof
- Function : Author
M. Ellert
- Function : Author
M. Elsing
- Function : Author
C. Espirito Santo
- Function : Author
G. Fanourakis
- Function : Author
D. Fassouliotis
- Function : Author
M. Feindt
- Function : Author
J. Fernandez
- Function : Author
A. Ferrer
- Function : Author
F. Ferro
- Function : Author
U. Flagmeyer
- Function : Author
H. Foeth
- Function : Author
E. Fokitis
- Function : Author
J. Fuster
- Function : Author
M. Gandelman
- Function : Author
G. Garcia
- Function : Author
Ph. Gavillet
- Function : Author
E. Gazis
- Function : Author
R. Gokieli
- Function : Author
B. Golob
- Function : Author
G. Gomez-Ceballos
- Function : Author
P. Goncalves
- Function : Author
E. Graziani
- Function : Author
K. Grzelak
- Function : Author
J. Guy
- Function : Author
C. Haag
- Function : Author
A. Hallgren
- Function : Author
K. Hamacher
- Function : Author
K. Hamilton
- Function : Author
S. Haug
- Function : Author
F. Hauler
- Function : Author
V. Hedberg
- Function : Author
M. Hennecke
- Function : Author
H. Herr
- Function : Author
Jakobus Hoffman
- Function : Author
S.-O. Holmgren
- Function : Author
J. Holt
- Function : Author
A. Houlden
- Function : Author
K. Hultqvist
- Function : Author
J.N. Jackson
- Function : Author
G. Jarlskog
- Function : Author
P. Jarry
- Function : Author
D. Jeans
- Function : Author
E.K. Johansson
- Function : Author
P.D. Johansson
- Function : Author
C. Joram
- Function : Author
L. Jungermann
- Function : Author
E. Katsoufis
- Function : Author
G. Kernel
- Function : Author
P. Kersevan
- Function : Author
U. Kerzel
- Function : Author
A. Kiiskinen
- Function : Author
T. King
- Function : Author
J. Kjaer
- Function : Author
P. Kluit
- Function : Author
P. Kokkinias
- Function : Author
C. Kourkoumelis
- Function : Author
O. Kouznetsov
- Function : Author
Z. Krumstein
- Function : Author
M. Kucharczyk
- Function : Author
J. Lamsa
- Function : Author
G. Leder
- Function : Author
L. Leinonen
- Function : Author
R. Leitner
- Function : Author
J. Lemonne
- Function : Author
T. Lesiak
- Function : Author
W. Liebig
- Function : Author
D. Liko
- Function : Author
A. Lipniacka
- Function : Author
J.H. Lopes
- Function : Author
J.M. Lopez
- Function : Author
D. Loukas
- Function : Author
P. Lutz
- Function : Author
L. Lyons
- Function : Author
J. Macnaughton
- Function : Author
A. Malek
- Function : Author
S. Maltezos
- Function : Author
F. Mandl
- Function : Author
J. Marco
- Function : Author
R. Marco
- Function : Author
B. Marechal
- Function : Author
M. Margoni
- Function : Author
J.-C. Marin
- Function : Author
C. Mariotti
- Function : Author
A. Markou
- Function : Author
- PersonId : 755200
- ORCID : 0000-0002-0812-6818
C. Martinez-Rivero
- Function : Author
J. Masik
- Function : Author
N. Mastroyiannopoulos
- Function : Author
F. Matorras
- Function : Author
C. Matteuzzi
- Function : Author
F. Mazzucato
- Function : Author
M. Mazzucato
- Function : Author
R. Mc Nulty
- Function : Author
C. Meroni
- Function : Author
E. Migliore
- Function : Author
W. Mitaroff
- Function : Author
U. Mjoernmark
- Function : Author
T. Moa
- Function : Author
M. Moch
- Function : Author
K. Moenig
- Function : Author
R. Monge
- Function : Author
J. Montenegro
- Function : Author
D. Moraes
- Function : Author
S. Moreno
- Function : Author
P. Morettini
- Function : Author
U. Mueller
- Function : Author
K. Muenich
- Function : Author
M. Mulders
- Function : Author
L. Mundim
- Function : Author
W. Murray
- Function : Author
B. Muryn
- Function : Author
G. Myatt
- Function : Author
T. Myklebust
- Function : Author
M. Nassiakou
- Function : Author
F. Navarria
- Function : Author
K. Nawrocki
- Function : Author
R. Nicolaidou
- Function : Author
A. Oblakowska-Mucha
- Function : Author
V. Obraztsov
- Function : Author
A. Olshevski
- Function : Author
A. Onofre
- Function : Author
R. Orava
- Function : Author
K. Osterberg
- Function : Author
A. Ouraou
- Function : Author
A. Oyanguren
- Function : Author
M. Paganoni
- Function : Author
S. Paiano
- Function : Author
- PersonId : 755201
- ORCID : 0000-0002-2239-3373
J.P. Palacios
- Function : Author
H. Palka
- Function : Author
Th.D. Papadopoulou
- Function : Author
L. Pape
- Function : Author
C. Parkes
- Function : Author
F. Parodi
- Function : Author
U. Parzefall
- Function : Author
A. Passeri
- Function : Author
O. Passon
- Function : Author
L. Peralta
- Function : Author
V. Perepelitsa
- Function : Author
A. Perrotta
- Function : Author
A. Petrolini
- Function : Author
J. Piedra
- Function : Author
L. Pieri
- Function : Author
F. Pierre
- Function : Author
- PersonId : 739575
- IdHAL : frederic-pierre
- ORCID : 0000-0003-1243-6808
- IdRef : 068904975
M. Pimenta
- Function : Author
E. Piotto
- Function : Author
T. Podobnik
- Function : Author
V. Poireau
- Function : Author
M.E. Pol
- Function : Author
G. Polok
- Function : Author
P. Poropat
- Function : Author
V. Pozdniakov
- Function : Author
N. Pukhaeva
- Function : Author
A. Pullia
- Function : Author
J. Rames
- Function : Author
L. Ramler
- Function : Author
A. Read
- Function : Author
P. Rebecchi
- Function : Author
J. Rehn
- Function : Author
D. Reid
- Function : Author
R. Reinhardt
- Function : Author
P. Renton
- Function : Author
J. Ridky
- Function : Author
M. Rivero
- Function : Author
D. Rodriguez
- Function : Author
- PersonId : 755360
- ORCID : 0000-0003-1286-5231
A. Romero
- Function : Author
P. Ronchese
- Function : Author
T. Rovelli
- Function : Author
V. Ruhlmann-Kleider
- Function : Author
D. Ryabtchikov
- Function : Author
A. Sadovsky
- Function : Author
L. Salmi
- Function : Author
J. Salt
- Function : Author
U. Schwickerath
- Function : Author
A. Segar
- Function : Author
R. Sekulin
- Function : Author
M. Siebel
- Function : Author
A. Sisakian
- Function : Author
O. Smirnova
- Function : Author
A. Sokolov
- Function : Author
A. Sopczak
- Function : Author
R. Sosnowski
- Function : Author
T. Spassov
- Function : Author
M. Stanitzki
- Function : Author
J. Strauss
- Function : Author
B. Stugu
- Function : Author
M. Szczekowski
- Function : Author
M. Szeptycka
- Function : Author
T. Szumlak
- Function : Author
T. Tabarelli
- Function : Author
C. Taffard
- Function : Author
F. Tegenfeldt
- Function : Author
J. Timmermans
- Function : Author
L. Tkatchev
- Function : Author
M. Tobin
- Function : Author
S. Todorovova
- Function : Author
B. Tome
- Function : Author
A. Tonazzo
- Function : Author
Pablo Tortosa
- Function : Author
- PersonId : 5235
- IdHAL : pablo-tortosa
- ORCID : 0000-0002-7928-7264
- IdRef : 186126034
P. Travnicek
- Function : Author
D. Treille
- Function : Author
M. Trochimczuk
- Function : Author
C. Troncon
- Function : Author
M.-L. Turluer
- Function : Author
A. Tyapkin
- Function : Author
P. Tyapkin
- Function : Author
S. Tzamarias
- Function : Author
V. Uvarov
- Function : Author
G. Valenti
- Function : Author
P. van Dam
- Function : Author
J. van Eldik
- Function : Author
A. van Lysebetten
- Function : Author
N. van Remortel
- Function : Author
I. van Vulpen
- Function : Author
G. Vegni
- Function : Author
F. Veloso
- Function : Author
W. Venus
- Function : Author
V. Verzi
- Function : Author
D. Vilanova
- Function : Author
L. Vitale
- Function : Author
V. Vrba
- Function : Author
H. Wahlen
- Function : Author
J. Washbrook
- Function : Author
C. Weiser
- Function : Author
D. Wicke
- Function : Author
J. Wickens
- Function : Author
G. Wilkinson
- Function : Author
M. Witek
- Function : Author
O. Yushchenko
- Function : Author
A. Zalewska
- Function : Author
P. Zalewski
- Function : Author
D. Zavrtanik
- Function : Author
V. Zhuravlov
- Function : Author
I. Zimin
- Function : Author
A. Zintchenko
- Function : Author
M. Zupan
- Function : Author
Abstract
Low-energy particle production perpendicular to the event plane in three-jet events produced in Z decays in e+e- annihilation is measured and compared to that perpendicular to the event axis in two-jet events. The topology dependence of the hadron production ratio is found to agree with a leading-order QCD prediction. This agreement and especially the need for the presence of a destructive interference term gives evidence for the coherent nature of gluon radiation. Hadron production in three-jet events is found to be directly proportional to a single topological scale function of the inter-jet angles. The slope of the dependence of the multiplicity with respect to the topological scale was measured to be: 2.211 +/- 0.014 (stat.) +/- 0.053 (syst.) in good agreement with the expectation given by the colour-factor ratio C_A / C_F = 9/4. This result strongly supports the assumption of local parton-hadron duality, LPHD, at low hadron momentum.