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Measurement of dijet photoproduction at high transverse energies at HERA

  • J. Breitweg
  • , S. Chekanov
  • , M. Derrick
  • , D. Krakauer
  • , S. Magill
  • , B. Musgrave
  • , A. Pellegrino
  • , J. Repond
  • , R. Stanek
  • , R. Yoshida
  • , M. C.K. Mattingly
  • , G. Abbiendi
  • , F. Anselmo
  • , P. Antonioli
  • , G. Bari
  • , M. Basile
  • , L. Bellagamba
  • , D. Boscherini
  • , A. Bruni
  • , G. Bruni
  • G. Cara Romeo, G. Castellini, L. Cifarelli, F. Cindolo, A. Contin, N. Coppola, M. Corradi, S. de Pasquale, P. Giusti, G. Iacobucci, G. Laurenti, G. Levi, A. Margotti, T. Massam, R. Nania, F. Palmonari, A. Pesci, A. Polini, G. Sartorelli, Y. Zamora Garcia, A. Zichichi, C. Amelung, A. Bornheim, I. Brock, K. Coböken, J. Crittenden, R. Deffner, M. Eckert, H. Hartmann, K. Heinloth, L. Heinz, E. Hilger, H. P. Jakob, A. Kappes, U. F. Katz, R. Kerger, E. Paul, M. Pfeiffer, J. Rautenberg, H. Schnurbusch, A. Stifutkin, J. Tandler, A. Weber, H. Wieber, D. S. Bailey, O. Barret, W. N. Cottingham, B. Foster, G. P. Heath, H. F. Heath, J. D. McFall, D. Piccioni, J. Scott, R. J. Tapper, M. Capua, A. Mastroberardino, M. Schioppa, G. Susinno, H. Y. Jeoung, J. Y. Kim, J. H. Lee, I. T. Lim, K. J. Ma, M. Y. Pac, A. Caldwell, N. Cartiglia, Z. Jing, W. Liu, B. Mellado, J. A. Parsons, S. Ritz, R. Sacchi, S. Sampson, F. Sciulli, Q. Zhu, P. Borzemski, J. Chwastowski, A. Eskreys, J. Figiel, K. Klimek, K. Olkiewicz, M. B. Przybycień, L. Zawiejski, L. Adamczyk, B. Bednarek, K. Jeleń, D. Kisielewska, A. M. Kowal, T. Kowalski, E. Rulikowska-Zarȩbska, L. Suszycki, J. Zaja̧c, Z. Duliński, A. Kotański, L. A.T. Bauerdick, U. Behrens, J. K. Bienlein, C. Burgard, K. Desler, G. Drews, A. Fox-Murphy, U. Fricke, F. Goebel, P. Göttlicher, R. Graciani, T. Haas, W. Hain, G. F. Hartner, D. Hasell, K. Hebbel, K. F. Johnson, M. Kasemann, W. Koch, U. Kötz, H. Kowalski, L. Lindemann, B. Löhr, M. Martínez, J. Milewski, M. Milite, T. Monteiro, M. Moritz, D. Notz, F. Pelucchi, K. Piotrzkowski, M. Rohde, P. R.B. Saull, A. A. Savin, U. Schneekloth, O. Schwarzer, F. Selonke, M. Sievers, S. Stonjek, E. Tassi, G. Wolf, U. Wollmer, C. Youngman, W. Zeuner, B. D. Burow, C. Coldewey, H. J. Grabosch, A. Lopez-Duran Viani, A. Meyer, K. Mönig, S. Schlenstedt, P. B. Straub, G. Barbagli, E. Gallo, P. Pelfer, G. Maccarrone, L. Votano, A. Bamberger, S. Eisenhardt, P. Markun, H. Raach, S. Wölfle, N. H. Brook, P. J. Bussey, A. T. Doyle, S. W. Lee, N. Macdonald, G. J. McCance, D. H. Saxon, L. E. Sinclair, I. O. Skillicorn, E. Strickland, R. Waugh, I. Bohnet, N. Gendner, U. Holm, A. Meyer-Larsen, H. Salehi, K. Wick, A. Garfagnini, I. Gialas, L. K. Gladilin, D. Kçira, R. Klanner, E. Lohrmann, G. Poelz, F. Zetsche, T. C. Bacon, J. E. Cole, G. Howell, L. Lamberti, K. R. Long, D. B. Miller, A. Prinias, J. K. Sedgbeer, D. Sideris, A. D. Tapper, R. Walker, U. Mallik, S. M. Wang, P. Cloth, D. Filges, T. Ishii, M. Kuze, I. Suzuki, K. Tokushuku, S. Yamada, K. Yamauchi, Y. Yamazaki, S. H. Ahn, S. H. An, S. J. Hong, S. B. Lee, S. W. Nam, S. K. Park, H. Lim, I. H. Park, D. Son, F. Barreiro, J. P. Fernández, G. García, C. Glasman, J. M. Hernández, L. Labarga, J. del Peso, J. Puga, I. Redondo, J. Terrón, F. Corriveau, D. S. Hanna, J. Hartmann, W. N. Murray, A. Ochs, S. Padhi, M. Riveline, D. G. Stairs, M. St-Laurent, M. Wing, T. Tsurugai, V. Bashkirov, B. A. Dolgoshein, G. L. Bashindzhagyan, P. F. Ermolov, Y. A. Golubkov, L. A. Khein, N. A. Korotkova, I. A. Korzhavina, V. A. Kuzmin, O. Y. Lukina, A. S. Proskuryakov, L. M. Shcheglova, A. N. Solomin, S. A. Zotkin, C. Bokel, M. Botje, N. Brömmer, J. Engelen, E. Koffeman, P. Kooijman, A. van Sighem, H. Tiecke, N. Tuning, J. J. Velthuis, W. Verkerke, J. Vossebeld, L. Wiggers, E. de Wolf, D. Acosta, B. Bylsma, L. S. Durkin, J. Gilmore, C. M. Ginsburg, C. L. Kim, T. Y. Ling, P. Nylander, H. E. Blaikley, S. Boogert, R. J. Cashmore, A. M. Cooper-Sarkar, R. C.E. Devenish, J. K. Edmonds, J. Große-Knetter, N. Harnew, T. Matsushita, V. A. Noyes, A. Quadt, O. Ruske, M. R. Sutton, R. Walczak, D. S. Waters, A. Bertolin, R. Brugnera, R. Carlin, F. Dal Corso, S. Dondana, U. Dosselli, S. Dusini, S. Limentani, M. Morandin, M. Posocco, L. Stanco, R. Stroili, C. Voci, L. Iannotti, B. Y. Oh, J. R. Okrasiński, W. S. Toothacker, J. J. Whitmore, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, M. Raso, C. Cormack, J. C. Hart, N. A. McCubbin, T. P. Shah, D. Epperson, C. Heusch, H. F.W. Sadrozinski, A. Seiden, R. Wichmann, D. C. Williams, N. Pavel, H. Abramowicz, S. Dagan, S. Kananov, A. Kreisel, A. Levy, A. Schechter, T. Abe, T. Fusayasu, M. Inuzuka, K. Nagano, K. Umemori, T. Yamashita, R. Hamatsu, T. Hirose, K. Homma, S. Kitamura, T. Nishimura, M. Arneodo, R. Cirio, M. Costa, M. I. Ferrero, S. Maselli, V. Monaco, C. Peroni, M. C. Petrucci, M. Ruspa, A. Solano, A. Staiano, M. Dardo, D. C. Bailey, C. P. Fagerstroem, R. Galea, T. Koop, G. M. Levman, J. F. Martin, R. S. Orr, S. Polenz, A. Sabetfakhri, D. Simmons, J. M. Butterworth, C. D. Catterall, M. E. Hayes, E. A. Heaphy, T. W. Jones, J. B. Lane, J. Ciborowski, G. Grzelak, R. J. Nowak, J. M. Pawlak, R. Pawlak, B. Smalska, T. Tymieniecka, A. K. Wróblewski, J. A. Zakrzewski, A. F. Zarnecki, M. Adamus, T. Gadaj, O. Deppe, Y. Eisenberg, D. Hochman, U. Karshon, W. F. Badgett, D. Chapin, R. Cross, C. Foudas, S. Mattingly, D. D. Reeder, W. H. Smith, A. Vaiciulis, T. Wildschek, M. Wodarczyk, A. Deshpande, S. Dhawan, V. W. Hughes, S. Bhadra, W. R. Frisken, R. Hall-Wilton, M. Khakzad, S. Menary, W. B. Schmidke
  • Argonne National Laboratory
  • Andrews University
  • National Institute for Nuclear Physics
  • German Electron Synchrotron
  • IROE Florence
  • University of Salerno
  • University of Bonn
  • Spectral Design GmbH
  • EDS Electronic Data Systems GmbH
  • University of Bristol
  • University of Hamburg
  • University of Calabria
  • Chonnam National University
  • Dongshin University
  • Columbia University
  • NASA Goddard Space Flight Center
  • Greenway Trading LLC
  • Institute of Nuclear Physics
  • AGH University of Krakow
  • Jagiellonian University in Kraków
  • Massachusetts Institute of Technology
  • Florida State University
  • Fermi National Accelerator Laboratory
  • ATM
  • CERN
  • ESG Elektroniksystem und Logistik GmbH
  • Independent researcher in computing
  • University of Florence
  • University of Freiburg
  • University of Edinburgh
  • University of Glasgow
  • University of Crete
  • Imperial College London
  • University of Iowa
  • Jülich Research Centre
  • High Energy Accelerator Research Organization, Institute of Particle and Nuclear Physics
  • The University of Osaka
  • The University of Tokyo
  • Korea University
  • Wayne State University
  • Kyungpook National University
  • Universidad Autónoma de Madrid
  • McGill University
  • Debis Systemhaus
  • Meiji Gakuin University
  • Moscow Engineering Physics Institute
  • Loma Linda University Health
  • Lomonosov Moscow State University
  • University of Amsterdam
  • Ohio State University
  • University of Florida
  • University of Oxford
  • Dirac House
  • University of Padua
  • Pennsylvania State University
  • Polytechnic University Japan
  • University of Rome La Sapienza
  • STFC Rutherford Appleton Laboratory
  • University of California at Santa Cruz
  • University of Siegen
  • Tel Aviv University
  • Tokyo Metropolitan University
  • University of Turin
  • University of Eastern Piedmont
  • University of Toronto
  • University College London
  • University of Warsaw
  • Institute of Nuclear Chemistry and Technology, Warsaw
  • Weizmann Institute of Science
  • University of Wisconsin-Madison
  • University of Rochester
  • Yale University
  • York University Toronto

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

The cross section for dijet photoproduction at high transverse energies is presented as a function of the transverse energies and the pseudorapidities of the jets. The measurement is performed using a sample of ep-interactions corresponding to an integrated luminosity of 6.3 pb-1, recorded by the ZEUS detector. Jets are defined by applying a kT-clustering algorithm to the hadrons observed in the final state. The measured cross sections are compared to next-to-leading order QCD calculations. In a kinematic regime where theoretical uncertainties are expected to be small, the measured cross sections are higher than these calculations.

Original languageEnglish
Pages (from-to)35-50
Number of pages16
JournalEuropean Physical Journal C
Volume11
Issue number1
DOIs
StatePublished - 1999

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