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QCD coherence studies using two particle azimuthal correlations
Author(s) -
P.D. Acton,
G. Alexander,
J. Allison,
P. P. Allport,
K. J. Anderson,
S. Arcelli,
A. Astbury,
D. Axen,
G. Azuelos,
G.A. Bahan,
J. T. Baines,
A. H. Ball,
J. Banks,
R. J. Barlow,
S. Barnett,
J. R. Batley,
G. Beaudoin,
A. Beck,
J. Becker,
T. Behnke,
K. W. Bell,
G. Bella,
P. Berlich,
S. Bethke,
O. Biebel,
U. Binder,
I.J. Bloodworth,
P. Bock,
B. Boden,
H. M. Bosch,
S. Bougerolle,
H. Breuker,
R. M. Brown,
A. Buijs,
H. J. Burckardt,
C. D. Burgard,
P. Capiluppi,
R.K. Carnegie,
A. A. Carter,
J. R. Carter,
C.Y. Chang,
D. G. Charlton,
P. E. L. Clarke,
I. Cohen,
J. C. Clayton,
W.J. Collins,
J.E. Conboy,
M. Cooper,
M. Coupland,
M. Cuffiani,
S. Dado,
G. M. Dallavalle,
S. J. de Jong,
L.A. del Pozo,
Huiqiu Deng,
A. Dieckmann,
M. Dittmar,
M.S. Dixit,
E. Couto e Silva,
J. E. Duboscq,
E. Duchovni,
G. Duckeck,
I. P. Duerdoth,
D. Dumas,
P.A. Elcombe,
P.G. Estabrooks,
E. Etzion,
H. Evans,
F. Fabbri,
M. Fincke-Keeler,
H.M. Fischer,
D.G. Fong,
M. Foucher,
A. Gaidot,
O. Ganel,
J. W. Gary,
J. Gascon,
R.F. McGowan,
N. I. Geddes,
Ch. Geich-Gimbel,
S.W. Gensler,
F. X. Gentit,
P. Giacomelli,
V. Gibson,
W.R. Gibson,
J.D. Gillies,
J. Goldberg,
M.J. Goodrick,
W. Gorn,
C. Grandi,
F.C. Grant,
J. Hagemann,
G. G. Hanson,
M. Hansroul,
C. K. Hargrove,
P. F. Harrison,
J.C. Hart,
P.M. Hattersley,
M. Hauschild,
C. M. Hawkes,
E. Heflin,
R.J. Hemingway,
R.D. Heuer,
J. C. Hill,
S. J. Hillier,
T. Hilse,
D. A. Hinshaw,
J. Hobbs,
P. R. Hobson,
D. Hochman,
R.J. Homer,
A. K. Honma,
C.P. Howarth,
R.E. Hughes-Jones,
R. Humbert,
P. Igo-Kemenes,
H. Ihssen,
D.C. Imrie,
A. C. Janissen,
A. Jawahery,
P.W. Jeffreys,
H. Jérémie,
M. Jimack,
M. Jobes,
R. W. L. Jones,
P. Jovanović,
C. C. H. Jui,
D. Karlen,
K. Kawagoe,
T. Kawamoto,
R. Keeler,
R. G. Kellogg,
B. W. Kennedy,
S. Kluth,
T. Kobayashi,
T. Kokott,
S. Komamiya,
L. Köpke,
J. F. Kral,
R. Kowalewski,
J. von Krogh,
J. Kroll,
M. Kuwano,
P. Kyberd,
G. Lafferty,
F. Lamarche,
J. G. Layter,
P. Y. C. Du,
P. Leblanc,
A.M. Lee,
M.H. Lehto,
D. Lellouch,
P. Lennert,
C. Leroy,
J. Letts,
S. Levergrün,
L. Levinson,
S. L. Lloyd,
F. K. Loebinger,
J.M. Lorah,
B. Lorazo,
M. J. Losty,
X. C. Lou,
J. Ludwig,
M. Mannelli,
S. Marcellini,
G. Maringer,
C. Markus,
A. Martin,
J.P. Martin,
T. Mashimo,
P. Mättig,
U. Maur,
J. A. McKenna,
T. McMahon,
J.R. McNutt,
F. Meijers,
D. Menszner,
F. S. Merritt,
H. Mes,
A. Michelini,
R. P. Middleton,
G. Mikenberg,
J. Mildenberger,
D.J. Miller,
R. Mir,
W. Mohr,
C. Moisan,
A. Montanari,
T. Mori,
M. Morii,
T. Mouthuy,
B. Nellen,
H. Nguyen,
M. Nozaki,
S.W. OʼNeale,
F. G. Oakham,
F. Odorici,
H. Ogren,
C. J. Oram,
M. J. Oreglia,
S. Orito,
J.P. Pansart,
B. Panzer-Steindel,
P. Paschievici,
G. N. Patrick,
N. Paz-Jaoshvili,
P. Pfister,
J. E. Pilcher,
D. Pitman,
D.E. Plane,
P. Poffenberger,
B. Poli,
A. Pouladdej,
E. Prebys,
T.W. Pritchard,
H. Przysiezniak,
G. Quast,
M.W. Redmond,
D.L. Rees,
G. E. Richards,
D. Robinson,
A. Rollnik,
J. M. Roney,
E. Ros,
S. Rossberg,
M. Rosvick,
P. Routenburg,
K. Runge,
Ö. Runólfsson,
D. R. Rust,
M. Sasaki,
C. Sbarra,
A.D. Schaile,
O. Schaile,
W. Schappert,
P. Scharff-Hansen,
P. Schenk,
H. von der Schmitt,
S. Schreiber,
C. Schwick,
J. Schwiening,
W. G. Scott,
M. Settles,
T. Shears,
B. C. Shen,
C. H. Shepherd-Themistocleous,
P. Sherwood,
R. Shypit,
A. Simon,
P. Singh,
G. P. Siroli,
A. Skuja,
Andrew Smith,
T. J. Smith,
G. A. Snow,
R. Sobie,
R. W. Springer,
M. Sproston,
K. Stephens,
J. Steuerer,
R. Ströhmer,
D. Strom,
T. Takeshita,
P. Taras,
S. Tarem,
M. Tecchio,
P. Teixeira-Dias,
N. Tesch,
N.J. Thackray,
G. Tranströmer,
N. J. Tresilian,
T. Tsukamoto,
M.F. Turner,
G. Tysarczyk-Niemeyer,
D. Van den plas,
R. Van Kooten,
G. J. VanDalen,
G. Vasseur,
C.J. Virtue,
A. Wagner,
D.L. Wagner,
C. Wahl,
Jeffrey P. Walker,
C. P. Ward,
D. R. Ward,
P. M. Watklins,
A. T. Watson,
N. K. Watson,
M. Weber,
P. Weber,
S. Weisz,
P. S. Wells,
N. Wermes,
M.A. Whalley,
G. Wilson,
J. A. Wilson,
V-H. Winterer,
T. Wlodek,
S. Wotton,
T. R. Wyatt,
R. Yaari,
A. Yeaman,
G. Yekutieli,
M. Yurko,
W. Zeuner,
G. T. Zorn
Publication year - 1993
Publication title -
zeitschrift für physik c
Language(s) - English
Resource type - Journals
eISSN - 1431-5858
pISSN - 0170-9739
DOI - 10.1007/bf01560339
Subject(s) - physics , azimuth , quantum chromodynamics , parton , particle physics , monte carlo method , coherence (philosophical gambling strategy) , hadron , qcd matter , interference (communication) , parton shower , nuclear physics , statistical physics , quark–gluon plasma , statistics , optics , quantum mechanics , channel (broadcasting) , mathematics , electrical engineering , engineering
From a sample of 146900 hadronicZ0 decays recorded by the OPAL detector at LEP, we have studied the azimuthal correlations of particles in hadronic events. It is expected that these correlations are sensitive to interference effects in QCD. We have compared the data to QCD Monte Carlo models which include and which do not include interference effects. We find that the distributions of azimuthal correlations are not reproduced by the parton shower models we have tested unless interference effects are included, no matter which hadronisation scheme is used.

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