Inclusive dijet cross sections in neutral current deep inelastic scattering at HERA

H. Abramowicz*, I. Abt, L. Adamczyk, M. Adamus, R. Aggarwal, S. Antonelli, P. Antonioli, A. Antonov, M. Arneodo, V. Aushev, Y. Aushev, O. Bachynska, A. Bamberger, A. N. Barakbaev, G. Barbagli, G. Bari, F. Barreiro, D. Bartsch, M. Basile, O. BehnkeJ. Behr, U. Behrens, L. Bellagamba, A. Bertolin, S. Bhadra, M. Bindi, C. Blohm, V. Bokhonov, T. Bold, E. G. Boos, K. Borras, D. Boscherini, S. K. Boutle, I. Brock, E. Brownson, R. Brugnera, N. Bruemmer, A. Bruni, G. Bruni, B. Brzozowska, P. J. Bussey, J. M. Butterworth, B. Bylsma, A. Caldwell, M. Capua, R. Carlin, C. D. Catterall, S. Chekanov, J. Chwastowski, A. Pellegrino, ZEUS Collaboration

*Corresponding author for this work

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Abstract

Single- and double-differential inclusive dijet cross sections in neutral current deep inelastic ep scattering have been measured with the ZEUS detector using an integrated luminosity of 374 pb(-1). The measurement was performed at large values of the photon virtuality, Q (2), between 125 and 20 000 GeV2. The jets were reconstructed with the k (T) cluster algorithm in the Breit reference frame and selected by requiring their transverse energies in the Breit frame, E-jet (T,B), to be larger than 8 GeV. In addition, the invariant mass of the dijet system, M-jj,M- was required to be greater than 20 GeV. The cross sections are described by the predictions of next-to-leading-order QCD.

Original languageEnglish
Pages (from-to)965-982
Number of pages18
JournalEuropean Physical Journal C
Volume70
Issue number4
DOIs
Publication statusPublished - Dec-2010

Keywords

  • CENTRAL TRACKING DETECTOR
  • LEPTON-NUCLEON SCATTERING
  • PHYSICS EVENT GENERATION
  • ZEUS BARREL CALORIMETER
  • MONTE-CARLO GENERATOR
  • COLOR DIPOLE MODEL
  • JET-PRODUCTION
  • QCD ANALYSIS
  • PARTON DISTRIBUTIONS
  • HADRON-COLLISIONS

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