Measurement of the azimuthal correlation between the most forward jet and the scattered positron in deep-inelastic scattering at HERA

Research output: Contribution to journalArticle

Abstract

Deep-inelastic positron-proton scattering events at low photon virtuality, Q(2), with a forward jet, produced at small angles with respect to the proton beam, are measured with the H1 detector at HERA. A subsample of events with an additional jet in the central region is also studied. For both samples, differential cross sections and normalised distributions are measured as a function of the azimuthal angle difference, Delta phi, between the forward jet and the scattered positron in bins of the rapidity distance, Y, between them. The data are compared to predictions of Monte Carlo generators based on different evolution approaches as well as to next-to-leading order calculations in order to test the sensitivity to QCD evolution mechanisms.

Details

Authors
  • F. D. Aaron
  • C. Alexa
  • V. Andreev
  • S. Backovic
  • A. Baghdasaryan
  • S. Baghdasaryan
  • E. Barrelet
  • W. Bartel
  • K. Begzsuren
  • A. Belousov
  • P. Belov
  • J. C. Bizot
  • V. Boudry
  • I. Bozovic-Jelisavcic
  • J. Bracinik
  • G. Brandt
  • M. Brinkmann
  • V. Brisson
  • D. Britzger
  • D. Bruncko
  • A. Bunyatyan
  • G. Buschhorn
  • L. Bystritskaya
  • A. J. Campbell
  • K. B. Cantun Avila
  • F. Ceccopieri
  • K. Cerny
  • V. Cerny
  • V. Chekelian
  • J. G. Contreras
  • J. A. Coughlan
  • J. Cvach
  • J. B. Dainton
  • K. Daum
  • B. Delcourt
  • J. Delvax
  • E. A. De Wolf
  • C. Diaconu
  • M. Dobre
  • V. Dodonov
  • A. Dossanov
  • A. Dubak
  • G. Eckerlin
  • S. Egli
  • A. Eliseev
  • E. Elsen
  • L. Favart
  • A. Fedotov
  • R. Felst
  • J. Feltesse
  • J. Ferencei
  • D. -J. Fischer
  • M. Fleischer
  • A. Fomenko
  • E. Gabathuler
  • J. Gayler
  • S. Ghazaryan
  • A. Glazov
  • L. Goerlich
  • N. Gogitidze
  • M. Gouzevitch
  • C. Grab
  • A. Grebenyuk
  • T. Greenshaw
  • B. R. Grell
  • G. Grindhammer
  • S. Habib
  • D. Haidt
  • C. Helebrant
  • R. C. W. Henderson
  • E. Hennekemper
  • H. Henschel
  • M. Herbst
  • G. Herrera
  • M. Hildebrandt
  • K. H. Hiller
  • D. Hoffmann
  • R. Horisberger
  • T. Hreus
  • F. Huber
  • M. Jacquet
  • X. Janssen
  • H. Jung
  • M. Kapichine
  • I. R. Kenyon
  • C. Kiesling
  • M. Klein
  • C. Kleinwort
  • T. Kluge
  • R. Kogler
  • P. Kostka
  • M. Kraemer
  • J. Kretzschmar
  • K. Krueger
  • M. P. J. Landon
  • W. Lange
  • G. Lastovicka-Medin
  • P. Laycock
  • A. Lebedev
  • V. Lendermann
  • S. Levonian
  • K. Lipka
  • B. List
  • J. List
  • R. Lopez-Fernandez
  • V. Lubimov
  • A. Makankine
  • E. Malinovski
  • P. Marage
  • H. -U. Martyn
  • S. J. Maxfield
  • A. Mehta
  • A. B. Meyer
  • H. Meyer
  • J. Meyer
  • S. Mikocki
  • I. Milcewicz-Mika
  • F. Moreau
  • A. Morozov
  • J. V. Morris
  • M. Mudrinic
  • K. Mueller
  • Th. Naumann
  • P. R. Newman
  • C. Niebuhr
  • D. Nikitin
  • G. Nowak
  • K. Nowak
  • J. E. Olsson
  • D. Ozerov
  • P. Pahl
  • V. Palichik
  • I. Panagoulias
  • M. Pandurovic
  • Th. Papadopoulou
  • C. Pascaud
  • G. D. Patel
  • E. Perez
  • A. Petrukhin
  • I. Picuric
  • S. Piec
  • H. Pirumov
  • D. Pitzl
  • R. Placakyte
  • B. Pokorny
  • R. Polifka
  • B. Povh
  • V. Radescu
  • N. Raicevic
  • T. Ravdandorj
  • P. Reimer
  • E. Rizvi
  • P. Robmann
  • R. Roosen
  • A. Rostovtsev
  • M. Rotaru
  • J. E. Ruiz Tabasco
  • S. Rusakov
  • D. Salek
  • D. P. C. Sankey
  • M. Sauter
  • E. Sauvan
  • S. Schmitt
  • L. Schoeffel
  • A. Schoening
  • H. -C. Schultz-Coulon
  • F. Sefkow
  • L. N. Shtarkov
  • S. Shushkevich
  • T. Sloan
  • I. Smiljanic
  • Y. Soloviev
  • P. Sopicki
  • D. South
  • V. Spaskov
  • A. Specka
  • Z. Staykova
  • M. Steder
  • B. Stella
  • G. Stoicea
  • U. Straumann
  • T. Sykora
  • P. D. Thompson
  • T. H. Tran
  • D. Traynor
  • P. Truoel
  • I. Tsakov
  • B. Tseepeldorj
  • J. Turnau
  • A. Valkarova
  • C. Vallee
  • P. Van Mechelen
  • Y. Vazdik
  • D. Wegener
  • E. Wuensch
  • 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
JournalEuropean Physical Journal C. Particles and Fields
Volume72
Issue number3
StatePublished - 2012
Publication categoryResearch
Peer-reviewedYes