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Measurement of Dijet Cross Sections in ep Interactions with a Leading Neutron at HERA

Authors :
V. Andreev
Peter Robmann
Yves Sirois
Magnus Hansson
Dirk L. Hoffmann
J. C. Bizot
G. Franke
C. Risler
S. Backovic
E. Wünsch
J. Žáček
Hans-Christian Schultz-Coulon
R. Eichler
Dave Sankey
H. Lueders
F. Eisele
R. Oganezov
K. Sedlák
J. E. Olsson
W. Bartel
Fabian Zomer
Dusan Bruncko
C. Gwilliam
S. Levonian
B. Naroska
G. D. Patel
H. Meyer
Malte Hildebrandt
Laurent Schoeffel
S. Schmidt
Wolfram Erdmann
D.P. Johnson
A. M. Fomenko
Paul Laycock
E. Malinovski
Pierre Marage
A. Makankine
T. Greenshaw
G. Buschhorn
D. Ozerov
R. Weber
Emmanuel Sauvan
B. Vujicic
F. W. Büsser
N. Malden
G. Grindhammer
Erika Garutti
C. Gerlich
I. Foresti
G. Cozzika
N. Werner
Matthew Beckingham
Anna Kropivnitskaya
A. DeRoeck
R. Felst
P. Baranov
I. R. Kenyon
J. Ferencei
M. Martisikova
J. Naumann
L. Finke
Stefan Valkar
Natasa Raicevic
C. Wigmore
David South
F. Salvaire
D. Haidt
K. Daum
I. Glushkov
Wolfgang Lange
I. Milcewicz-Mika
J. Gayler
John A Coughlan
S. Ghazaryan
Vincent Boudry
F. Tomasz
Claus Kleinwort
A. N. Morozov
G. Knies
Leif J. Jönsson
Benoit Roland
K. Krüger
A. Nikiforov
D. Perez-Astudillo
M. Gregori
C. Goyon
Eram Rizvi
T. J. Sloan
P.J.W. Faulkner
A.S. Belousov
B. Stella
T. Klimkovich
Th. Naumann
M. Peez
G. Heinzelmann
V. Dodonov
Sergey Rusakov
P. Truöl
T. Frisson
I. Strauch
Philipp Fleischmann
R. Pöschl
R. Marshall
Zhen Zhang
S. Caron
Ricardo Lopez-Fernandez
Murrough Landon
S. Baumgartner
S. Gorbounov
O. Behnke
V. Chekelian
J. V. Morris
Andreas Meyer
D.K. Nikitin
E. Gabathuler
O. Henshaw
A. Bunyatyan
P. Van Mechelen
A. Usik
Klaus Desch
R. D. Heuer
G. Frising
A. Rimmer
C. Wissing
A. Knutsson
D. Wegener
Thorsten Lux
L. Janauschek
N. Van Remortel
V. Efremenko
S. Mikocki
M. Jacquet
E. E. Elsen
V. Lubimov
A. Dubak
M. Goettlich
K. Nankov
L. N. Shtarkov
J. Formánek
Stephen Maxfield
Sakar Osman
J. Stiewe
J. Scheins
I. Sheviakov
S. Schmitt
Adrian Perieanu
C. Veelken
Andrew Mehta
J. Bracinik
W.D. Dau
J. B. Dainton
N. Gogitidze
B. Portheault
Gerhard Brandt
Daniel Pitzl
B. Leißner
D. Meer
J. Zálešák
D. Traynor
V. Volchinski
V. Spaskov
Judith Katzy
F. Cassol-Brunner
R. Demirchyan
A. Asmone
J. Kückens
K. Wacker
L. Hajduk
Y.H. Fleming
Xavier Janssen
Max Klein
W. Yan
Georgios Tsipolitis
M. Fleischer
N. Loktionova
M. Urban
A. Hovhannisyan
K. Krastev
R. Plačakyte
I. Tsurin
E. Lobodzinska
Bogdan Povh
L. Lindfeld
F. Sefkow
M. Ismail
David Milstead
T. Kluge
Jan Kretzschmar
P. A. Smirnov
M. Wessels
Guenter Eckerlin
André Schöning
M. Ellerbrock
L. Goerlich
B. Delcourt
H. U. Martyn
G. Herrera
Bradley Cox
R. Wolf
B. Wessling
M.-O. Boenig
Matthias Ulrich Mozer
A. Fedotov
T. Laštovička
Nicolas Berger
P. D. Thompson
A. Vest
S. Ginzburgskaya
O. Behrendt
S. Vinokurova
A. Zhelezov
S. Baudrand
V. Yeganov
J. Zimmermann
J-P. Meyer
C. Kiesling
P. Kostka
E. Barrelet
E. Tzamariudaki
A. J. Campbell
D.P. Brown
J. Haller
L. Bystritskaya
J. Turnau
S. Mangano
Z. Rurikova
V. Jemanov
I. Tsakov
Roland Horisberger
A. Valkárová
H. Zohrabyan
Ch. Berger
F. Moreau
Karlheinz Meier
R. Roosen
Martin Karlsson
S. J. Aplin
K. Müller
C. Pascaud
Christian Schwanenberger
I. Herynek
L. Lytkin
Cristinel Diaconu
Y. Vazdik
D. Lüke
B. List
Stefania Xella
A. Aktas
S. Essenov
Katerina Lipka
J. Wagner
J. Cvach
V. Tchoulakov
R. Koutouev
A. Petrukhin
V. Brisson
A. D.R. Vargas Trevino
Anton Babaev
J. G. Contreras
A. Mohamed
P. Prideaux
Pavel Murin
M. Ibbotson
Karel Cerny
E. Perez
C. Schmitz
Hannes Jung
Alexander Zhokin
J. Becker
C. Vallée
B. Olivier
Laurent Favart
T. Anthonis
R. Gerhards
P. E. Reimer
G. G. Winter
A. Glazov
Gero Flucke
M. Kapichine
M. Nozicka
E. A. DeWolf
S. Schätzel
A. Baghdasaryan
A. Rostovtsev
N. Keller
G. Nowak
G. Thompson
V. Lendermann
V. Schröder
H. Henschel
D. Utkin
J. Bähr
C. Niebuhr
S. Egli
Y. Soloviev
Paul Newman
F. P. Schilling
Christoph Grab
A.-I. Lucaci-Timoce
K. H. Hiller
R. C. W. Henderson
G. Weber
U. Straumann
A. Specka
V. Korbel
Alexandre Lebedev
C. Werner
Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE)
Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire de l'Accélérateur Linéaire (LAL)
Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Laboratoire Leprince-Ringuet (LLR)
Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS)
Centre de Physique des Particules de Marseille (CPPM)
Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA)
Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
H1
Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC)
Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
H1 Collaboration
Source :
European Physical Journal C: Particles and Fields, European Physical Journal C: Particles and Fields, 2005, 41, pp.273-286. ⟨10.1140/epjc/s2005-02227-8⟩, European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2005, 41, pp.273-286. ⟨10.1140/epjc/s2005-02227-8⟩, European physical journal : C : particles and fields
Publication Year :
2005
Publisher :
HAL CCSD, 2005.

Abstract

Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are presented as a function of several kinematic variables. Leading order QCD simulation programs are compared with the measurements. Models in which the real or virtual photon interacts with a parton of an exchanged pion are able to describe the data. Next-to-leading order perturbative QCD calculations based on pion exchange are found to be in good agreement with the measured cross sections. The fraction of leading neutron dijet events with respect to all dijet events is also determined. The dijet events with a leading neutron have a lower fraction of resolved photon processes than do the inclusive dijet data.<br />27 pages, 9 figures, 5 tables

Subjects

Subjects :
Particle physics
Physics and Astronomy (miscellaneous)
Nuclear Theory
FOS: Physical sciences
Virtual particle
Parton
01 natural sciences
High Energy Physics - Experiment
Nuclear physics
High Energy Physics - Experiment (hep-ex)
Pion
0103 physical sciences
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Neutron
010306 general physics
Nuclear Experiment
Engineering (miscellaneous)
Quantum chromodynamics
Physics
010308 nuclear & particles physics
High Energy Physics::Phenomenology
Perturbative QCD
HERA
Deep inelastic scattering
3. Good health
High Energy Physics::Experiment

Details

Language :
English
ISSN :
14346044 and 14346052
Database :
OpenAIRE
Journal :
European Physical Journal C: Particles and Fields, European Physical Journal C: Particles and Fields, 2005, 41, pp.273-286. ⟨10.1140/epjc/s2005-02227-8⟩, European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2005, 41, pp.273-286. ⟨10.1140/epjc/s2005-02227-8⟩, European physical journal : C : particles and fields
Accession number :
edsair.doi.dedup.....f1063322a5602d74873d1706270fcdf3

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