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Measurement of exclusive ω electroproduction 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, H. Hartmann, K. Heinloth, E. Hilger, P. Irrgang, H. P. Jakob, A. Kappes, U. F. Katz, R. Kerger, E. Paul, J. Rautenberg, H. Schnurbusch, A. Stifutkin, J. Tandler, K. C. Voss, A. Weber, H. Wieber, D. S. Bailey, O. Barret, N. H. Brook, B. Foster, G. P. Heath, H. F. Heath, J. D. McFall, E. Rodrigues, 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, W. Liu, X. Liu, B. Mellado, S. Paganis, S. Sampson, W. B. Schmidke, F. Sciulli, J. Chwastowski, A. Eskreys, J. Figiel, K. Klimek, K. Olkiewicz, K. Piotrzkowski, M. B. Przybycień, P. Stopa, L. Zawiejski, B. Bednarek, K. Jeleń, D. Kisielewska, A. M. Kowal, T. Kowalski, E. Rulikowska-Zarebska, L. Suszycki, D. Szuba, A. Kotański, L. A.T. Bauerdick, U. Behrens, J. K. Bienlein, K. Borras, D. Dannheim, K. Desler, G. Drews, A. Fox-Murphy, U. Fricke, F. Goebel, S. Goers, P. Göttlicher, R. Graciani, T. Haas, W. Hain, G. F. Hartner, D. Hasell, K. Hebbel, M. Kasemann, W. Koch, U. Kötz, H. Kowalski, L. Lindemann, B. Löhr, R. Mankel, M. Martínez, M. Milite, M. Moritz, D. Notz, F. Pelucchi, M. C. Petrucci, M. Rohde, A. A. Savin, U. Schneekloth, F. Selonke, M. Sievers, S. Stonjek, G. Wolf, U. Wollmer, C. Youngman, W. Zeuner, C. Coldewey, A. Lopez-Duran Viani, A. Meyer, S. Schlenstedt, P. B. Straub, G. Barbagli, E. Gallo, P. Pelfer, G. Maccarrone, L. Votano, A. Bamberger, A. Benen, S. Eisenhardt, P. Markun, H. Raach, S. Wölfle, P. J. Bussey, M. Bell, A. T. Doyle, S. W. Lee, A. Lupi, N. Macdonald, G. J. McCance, D. H. Saxon, L. E. Sinclair, I. O. Skillicorn, 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, R. Goncalo, K. R. Long, D. B. Miller, A. D. Tapper, R. Walker, U. Mallik, P. Cloth, D. Filges, T. Ishii, M. Kuze, K. Nagano, K. Tokushuku, S. Yamada, Y. Yamazaki, S. H. Ahn, S. B. Lee, S. K. Park, H. Lim, I. H. Park, D. Son, F. Barreiro, G. García, C. Glassnan, O. González, L. Labarga, J. del Peso, I. Redondo, J. Terrón, M. Barbi, F. Corriveau, D. S. Hanna, A. Ochs, S. Padhi, D. G. Stairs, M. Wing, T. Tsurugai, A. Antonov, V. Bashkirov, M. Danilov, B. A. Dolgoshein, D. Gladkov, V. Sosnovtsev, S. Suchkov, R. K. Dementiev, P. F. Ermolov, Y. A. Golubkov, I. I. Katkov, L. A. Khein, N. A. Korotkova, I. A. Korzhavina, V. A. Kuzmin, O. Y. Lukina, A. S. Proskuryakov, L. M. Shcheglova, A. N. Solomin, N. N. Vlasov, S. A. Zotkin, C. Bokel, M. Botje, N. Brümmer, J. Engelen, S. Grijpink, E. Koffeman, P. Kooijman, S. Schagen, A. van Sighem, E. Tassi, H. Tiecke, N. Tuning, J. J. Velthuis, J. Vossebeld, L. Wiggers, E. de Wolf, B. Bylsma, L. S. Durkin, J. Gilmore, C. M. Ginsburg, C. L. Kim, T. Y. Ling, S. Boogert, A. M. Cooper-Sarkar, R. C.E. Devenish, J. Grobe-Knetter, T. Matsushita, O. Ruske, M. R. Sutton, R. Walczak, A. Bertolin, R. Brugnera, R. Carlin, F. Dal Corso, U. Dosselli, S. Dusini, S. Limentani, M. Morandin, M. Posocco, L. Stanco, R. Stroili, M. Turcato, C. Voci, L. Adamczyk, L. Iannotti, B. Y. Oh, J. R. Okrasiński, P. R.B. Saull, W. S. Toothacker, J. J. Whitmore, Y. Iga, G. D'Agostini, G. Marini, A. Nigro, 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, T. Abe, T. Fusayasu, K. Umemori, T. Yamashita, R. Hamatsu, T. Hirose, M. Inuzuka, S. Kitamura, T. Nishimura, M. Arneodo, N. Cartiglia, R. Cirio, M. Costa, M. I. Ferrero, S. Maselli, V. Monaco, C. Peroni, M. Ruspa, R. Sacchi, 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, B. J. West, J. Ciborowski, R. Ciesielski, 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, C. Catterall, J. E. Cole, W. R. Frisken, R. Hall-Wilton, M. Khakzad, S. Menary
  • Argonne National Laboratory
  • Andrews University
  • National Institute for Nuclear Physics
  • German Electron Synchrotron
  • IROE Florence
  • University of Salerno
  • University of Bonn
  • California Institute of Technology
  • Sparkasse Bonn
  • Siemens
  • University of Bristol
  • PPARC
  • University of Calabria
  • Chonnam National University
  • Columbia University
  • Institute of Nuclear Physics
  • CERN
  • AGH University of Krakow
  • Jagiellonian University in Kraków
  • Massachusetts Institute of Technology
  • Fermi National Accelerator Laboratory
  • SAP Research
  • SAP A.G.
  • University of Florence
  • University of Freiburg
  • University of Edinburgh
  • University of Glasgow
  • Dongshin University
  • University of Hamburg
  • 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 Tokyo
  • Korea University
  • Kyungpook National University
  • Universidad Autónoma de Madrid
  • McGill University
  • German Federal Ministry for Education and Science
  • Meiji Gakuin University
  • Moscow Engineering Physics Institute
  • Loma Linda University Health
  • Lomonosov Moscow State University
  • University of Amsterdam
  • Ohio State University
  • University of Oxford
  • Feodor Lynen Program of the Alexander von Humboldt foundation.
  • 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

61 Scopus citations

Abstract

The exclusive electroproduction of ω mesons, ep → e ω p, has been studied in the kinematic range 3 < Q2 < 20 GeV2, 40 < W < 120 GeV and |t| < 0.6 GeV2 with the ZEUS detector at HERA using an integrated luminosity of 37.7 pb-1. The ω mesons were identified via the decay ω → π+ π- π0. The exclusive cross section in the above kinematic region is σ(ep) → e ω p = 0.108 ± 0.014 (stat.) ± 0.026(syst.) nb. The reaction ep → e φ p, φ → π+ π- π0, has also been measured. The cross sections, as well as the ratios σ γ·p → ωp/σ γ · p → p0p and σ γ · p → ωp/σγ·p → φp, are presented as a function of W and Q2. Thus, for the first time, the properties of ω electroproduction can be compared to those of p0,φ and J/ψ electroproduction at high W. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)273-288
Number of pages16
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume487
Issue number3-4
DOIs
StatePublished - Aug 17 2000

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