Measurement of dijet production at low Q(2) at HERA

Research output: Contribution to journalArticle

Abstract

Triple differential dijet cross sections in e(+/-)p interactions are presented in the region of photon virtualities 2 < Q(2) < 80 GeV2, inelasticities 0.1 < y < 0.85, jet transverse energies E*(T1) > 7GeV, E*(T2) > 5 GeV, and pseudorapidities - 2.5 < η(1)*, η(2)* < 0. The measurements are made in the gamma*p centre-of-mass frame, using an integrated luminosity of 57 pb(-1). The data are compared with NLO QCD calculations and LO Monte Carlo programs with and without a resolved virtual photon contribution. NLO QCD calculations fail to describe the region of low Q(2) and low jet transverse energies, in contrast to a LO Monte Carlo generator which includes direct and resolved photon interactions with both transversely and longitudinally polarised photons. Initial and final state parton showers are tested as a mechanism for including higher order QCD effects in low E-T jet production.

Details

Authors
  • A Aktas
  • V Andreev
  • T Anthonis
  • A Asmone
  • A Babaev
  • S Backovic
  • J Bahr
  • P Baranov
  • E Barrelet
  • W Bartel
  • S Baumgartner
  • J Becker
  • M Beckingham
  • O Behnke
  • O Behrendt
  • A Belousov
  • C Berger
  • N Berger
  • T Berndt
  • JC Bizot
  • J Bohme
  • MO Boenig
  • V Boudry
  • J Bracinik
  • W Braunschweig
  • V Brisson
  • HB Broker
  • DP Brown
  • D Bruncko
  • FW Busser
  • A Bunyatyan
  • G Buschhorn
  • L Bystritskaya
  • AJ Campbell
  • S Caron
  • F Cassol-Brunner
  • K Cerny
  • V Chekelian
  • J Chyla
  • C Collard
  • JG Contreras
  • YR Coppens
  • JA Coughlan
  • MC Cousinou
  • BE Cox
  • G Cozzika
  • J Cvach
  • JB Dainton
  • WD Dau
  • K Daum
  • B Delcourt
  • N Delerue
  • R Demirchyan
  • A De Roeck
  • K Desch
  • EA De Wolf
  • C Diaconu
  • J Dingfelder
  • V Dodonov
  • JD Dowell
  • A Dubak
  • C Duprel
  • G Eckerlin
  • V Efremenko
  • S Egli
  • R Eichler
  • F Eisele
  • M Ellerbrock
  • E Elsen
  • M Erdmanne
  • W Erdmann
  • PJW Faulkner
  • L Favart
  • A Fedotov
  • R Felst
  • J Ferencei
  • M Fleischer
  • P Fleischmann
  • YH Fleming
  • G Flucke
  • G Flugge
  • A Fomenko
  • L Foresti
  • J Formanek
  • G Ranke
  • G Frising
  • E Gabathuler
  • K Gabathuler
  • J Garvey
  • J Gassner
  • J Gayler
  • R Gerhards
  • C Gerlich
  • S Ghazaryan
  • L Goerlich
  • N Gogitidze
  • S Gorbounov
  • C Grab
  • V Grabski
  • H Grassler
  • T Greenshaw
  • M Gregori
  • G Grindhammer
  • D Haidt
  • L Hajduk
  • J Haller
  • G Heinzelmann
  • RCW Henderson
  • H Henschel
  • O Henshaw
  • R Heremans
  • G Herrera
  • I Herynek
  • RD Heuer
  • M Hildebrandt
  • KH Hiller
  • J Hladky
  • P Hoting
  • D Hoffmann
  • R Horisberger
  • A Hovhannisyan
  • M Ibbotson
  • M Ismail
  • M Jacquet
  • L Janauschek
  • X Janssen
  • V Jemanov
  • C Johnson
  • DP Johnson
  • Hannes Jung
  • D Kant
  • M Kapichine
  • Martin Karlsson
  • J Katzy
  • N Keller
  • J Kennedy
  • IR Kenyon
  • C Kiesling
  • M Klein
  • C Kleinwort
  • T Kluge
  • G Knies
  • Albert Knutsson
  • B Koblitz
  • SD Kolya
  • V Korbel
  • P Kostka
  • R Koutouev
  • A Kropivnitskaya
  • J Kroseberg
  • J Kuckens
  • T Kuhr
  • MPJ Landon
  • W Lange
  • T Lastovicka
  • P Laycock
  • A Lebedev
  • B Leissner
  • R Lemrani
  • V Lendermann
  • S Levonian
  • B List
  • E Lobodzinska
  • N Loktionova
  • R Lopez-Fernandez
  • V Lubimov
  • H Lueders
  • S Luders
  • D Luke
  • T Lux
  • L Lytkin
  • A Makankine
  • N Malden
  • E Malinovski
  • S Mangano
  • P Marage
  • J Marks
  • R Marshall
  • M Martisikova
  • HU Martyn
  • J Martyniak
  • SJ Maxfield
  • D Meer
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  • K Meier
  • AB Meyer
  • H Meyer
  • J Meyer
  • S Michine
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  • I Milcewicz
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  • A Morozov
  • I Morozov
  • JV Morris
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  • P Murin
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  • J Naumann
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  • PR Newman
  • C Niebuhr
  • D Nikitin
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  • B Olivier
  • JE Olsson
  • G Ossoskov
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  • C Pascaud
  • GD Patel
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  • E Perez
  • A Perieanu
  • A Petrukhin
  • D Pitzl
  • R Poschl
  • B Portheault
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  • N Raicevic
  • J Rauschenberger
  • P Reimer
  • B Reisert
  • C Risler
  • E Rizvi
  • P Robmann
  • R Roosen
  • A Rostovtsev
  • Z Rurikova
  • S Rusakov
  • K Rybicki
  • DPC Sankey
  • E Sauvan
  • S Schatzel
  • J Scheins
  • FP Schilling
  • P Schleper
  • S Schmidt
  • S Schmitt
  • M Schneider
  • L Schoeffel
  • A Schoning
  • V Schroder
  • HC Schultz-Coulon
  • C Schwanenberger
  • K Sedlak
  • F Sefkow
  • I Sheviakov
  • LN Shtarkov
  • Y Sirois
  • T Sloan
  • P Smirnov
  • Y Soloviev
  • D South
  • V Spaskov
  • A Specka
  • H Spitzer
  • R Stamen
  • B Stella
  • J Stiewe
  • I Strauch
  • U Straumann
  • M Tasevsky
  • G Thompson
  • PD Thompson
  • F Tomasz
  • D Traynor
  • P Truol
  • G Tsipolitis
  • I Tsurin
  • J Turnau
  • E Tzamariudaki
  • A Uraev
  • M Urban
  • A Usik
  • S Valkar
  • A Valkarova
  • C Vallee
  • P Van Mechelen
  • AV Trevino
  • S Vassiliev
  • Y Vazdik
  • C Veelken
  • A Vest
  • A Vichnevski
  • S Vinokurova
  • V Volchinski
  • K Wacker
  • J Wagner
  • B Waugh
  • G Weber
  • R Weber
  • D Wegener
  • C Werner
  • N Werner
  • M Wessels
  • B Wessling
  • M Winde
  • GG Winter
  • C Wissing
  • EE Woehrling
  • E Wunsch
  • W Yan
  • J Zacek
  • J Zalesak
  • Z Zhang
  • A Zhokin
  • H Zohrabyan
  • F Zomer
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Pages (from-to)141-159
JournalEuropean Physical Journal C. Particles and Fields
Volume37
Issue number2
Publication statusPublished - 2004
Publication categoryResearch
Peer-reviewedYes