Regular Article - Experimental Physics

The European Physical Journal C

, Volume 55, Issue 2, pp 177-191

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

Diffractive photoproduction of dijets in ep collisions at HERA

  • S. ChekanovAffiliated withArgonne National Laboratory
  • , M. DerrickAffiliated withArgonne National Laboratory
  • , S. MagillAffiliated withArgonne National Laboratory
  • , B. MusgraveAffiliated withArgonne National Laboratory
  • , D. NicholassAffiliated withArgonne National LaboratoryUniversity College London
  • , J. RepondAffiliated withArgonne National Laboratory
  • , R. YoshidaAffiliated withArgonne National Laboratory
  • , M.C.K. MattinglyAffiliated withAndrews University
  • , M. JechowAffiliated withInstitut für Physik, Humboldt-Universität zu Berlin
    • , N. PavelAffiliated withInstitut für Physik, Humboldt-Universität zu Berlin
    • , A.G. Yagües MolinaAffiliated withInstitut für Physik, Humboldt-Universität zu Berlin
    • , S. AntonelliAffiliated withUniversity and INFN Bologna
    • , P. AntonioliAffiliated withUniversity and INFN Bologna
    • , G. BariAffiliated withUniversity and INFN Bologna
    • , M. BasileAffiliated withUniversity and INFN Bologna
    • , L. BellagambaAffiliated withUniversity and INFN Bologna
    • , M. BindiAffiliated withUniversity and INFN Bologna
    • , D. BoscheriniAffiliated withUniversity and INFN Bologna
    • , A. BruniAffiliated withUniversity and INFN Bologna
    • , G. BruniAffiliated withUniversity and INFN Bologna
    • , L. CifarelliAffiliated withUniversity and INFN Bologna
    • , F. CindoloAffiliated withUniversity and INFN Bologna
    • , A. ContinAffiliated withUniversity and INFN Bologna
    • , M. CorradiAffiliated withUniversity and INFN Bologna
    • , S. De PasqualeAffiliated withUniversity and INFN BolognaUniversity of Salerno
    • , G. IacobucciAffiliated withUniversity and INFN Bologna
    • , A. MargottiAffiliated withUniversity and INFN Bologna
    • , R. NaniaAffiliated withUniversity and INFN Bologna
    • , A. PoliniAffiliated withUniversity and INFN Bologna
    • , G. SartorelliAffiliated withUniversity and INFN Bologna
    • , A. ZichichiAffiliated withUniversity and INFN Bologna
    • , D. BartschAffiliated withPhysikalisches Institut, Universität Bonn
    • , I. BrockAffiliated withPhysikalisches Institut, Universität Bonn
    • , H. HartmannAffiliated withPhysikalisches Institut, Universität Bonn
    • , E. HilgerAffiliated withPhysikalisches Institut, Universität Bonn
    • , H.-P. JakobAffiliated withPhysikalisches Institut, Universität Bonn
    • , M. JüngstAffiliated withPhysikalisches Institut, Universität Bonn
    • , O.M. KindAffiliated withPhysikalisches Institut, Universität BonnHumboldt University
    • , A.E. Nuncio-QuirozAffiliated withPhysikalisches Institut, Universität Bonn
    • , E. PaulAffiliated withPhysikalisches Institut, Universität Bonn
    • , R. RennerAffiliated withPhysikalisches Institut, Universität BonnBruker AXS
    • , U. SamsonAffiliated withPhysikalisches Institut, Universität Bonn
    • , V. SchönbergAffiliated withPhysikalisches Institut, Universität Bonn
    • , R. ShehzadiAffiliated withPhysikalisches Institut, Universität Bonn
    • , M. WlasenkoAffiliated withPhysikalisches Institut, Universität Bonn
    • , N.H. BrookAffiliated withH.H. Wills Physics Laboratory, University of Bristol
    • , G.P. HeathAffiliated withH.H. Wills Physics Laboratory, University of Bristol
    • , J.D. MorrisAffiliated withH.H. Wills Physics Laboratory, University of Bristol
    • , M. CapuaAffiliated withPhysics Department and INFN, Calabria University
    • , S. FazioAffiliated withPhysics Department and INFN, Calabria University
    • , A. MastroberardinoAffiliated withPhysics Department and INFN, Calabria University
    • , M. SchioppaAffiliated withPhysics Department and INFN, Calabria University
    • , G. SusinnoAffiliated withPhysics Department and INFN, Calabria University
    • , E. TassiAffiliated withPhysics Department and INFN, Calabria University
    • , J.Y. KimAffiliated withChonnam National University
    • , Z.A. IbrahimAffiliated withJabatan Fizik, Universiti Malaya
    • , B. KamaluddinAffiliated withJabatan Fizik, Universiti Malaya
    • , W.A.T. Wan AbdullahAffiliated withJabatan Fizik, Universiti Malaya
    • , Y. NingAffiliated withNevis Laboratories, Columbia University
    • , Z. RenAffiliated withNevis Laboratories, Columbia University
    • , F. SciulliAffiliated withNevis Laboratories, Columbia University
    • , J. ChwastowskiAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , A. EskreysAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , J. FigielAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , A. GalasAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , M. GilAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , K. OlkiewiczAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , P. StopaAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , L. ZawiejskiAffiliated withThe Henryk Niewodniczanski Institute of Nuclear Physics, Polish Academy of Sciences
    • , L. AdamczykAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , T. BołdAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , I. Grabowska-BołdAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , D. KisielewskaAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , J. ŁukasikAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , M. PrzybycieńAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , L. SuszyckiAffiliated withFaculty of Physics and Applied Computer Science, AGH-University of Science and Technology
    • , A. KotańskiAffiliated withDepartment of Physics, Jagellonian University
    • , W. SłomińskiAffiliated withDepartment of Physics, Jagellonian University
    • , V. AdlerAffiliated withDeutsches Elektronen-Synchrotron DESYUniv. Libre de Bruxelles
    • , U. BehrensAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , C. BlohmAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , A. BonatoAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , K. BorrasAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , R. CiesielskiAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , N. CoppolaAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , V. DrugakovAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , S. FangAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , J. FourletovaAffiliated withDeutsches Elektronen-Synchrotron DESYUniversity of Bonn
    • , A. GeiserAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , D. GladkovAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , P. GöttlicherAffiliated withDeutsches Elektronen-Synchrotron DESYDESY group FEB
    • , J. GrebenyukAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , I. GregorAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , T. HaasAffiliated withDeutsches Elektronen-Synchrotron DESY Email author 
    • , W. HainAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , A. HüttmannAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , B. KahleAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , I.I. KatkovAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , U. KleinAffiliated withDeutsches Elektronen-Synchrotron DESYUniversity of Liverpool
    • , U. KötzAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , H. KowalskiAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , E. LobodzinskaAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , B. LöhrAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , R. MankelAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , I.-A. Melzer-PellmannAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , S. MiglioranziAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , A. MontanariAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , T. NamsooAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , D. NotzAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , L. RinaldiAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , P. RoloffAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , I. RubinskyAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , R. SantamartaAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , U. SchneeklothAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , A. SpiridonovAffiliated withDeutsches Elektronen-Synchrotron DESYInstitut of Theoretical and Experimental Physics
    • , D. SzubaAffiliated withDeutsches Elektronen-Synchrotron DESYINP
    • , J. SzubaAffiliated withDeutsches Elektronen-Synchrotron DESYFPACS, AGH-UST
    • , T. TheedtAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , G. WolfAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , K. WronaAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , C. YoungmanAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , W. ZeunerAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , W. LohmannAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , S. SchlenstedtAffiliated withDeutsches Elektronen-Synchrotron DESY
    • , G. BarbagliAffiliated withUniversity and INFN Florence
    • , E. GalloAffiliated withUniversity and INFN Florence
    • , P.G. PelferAffiliated withUniversity and INFN Florence
    • , A. BambergerAffiliated withFakultät für Physik, Universität Freiburg i.Br.
    • , D. DoburAffiliated withFakultät für Physik, Universität Freiburg i.Br.
    • , F. KarstensAffiliated withFakultät für Physik, Universität Freiburg i.Br.
    • , N.N. VlasovAffiliated withFakultät für Physik, Universität Freiburg i.Br.
    • , P.J. BusseyAffiliated withDepartment of Physics and Astronomy, University of Glasgow
    • , A.T. DoyleAffiliated withDepartment of Physics and Astronomy, University of Glasgow
    • , W. DunneAffiliated withDepartment of Physics and Astronomy, University of Glasgow
    • , M. ForrestAffiliated withDepartment of Physics and Astronomy, University of Glasgow
    • , D.H. SaxonAffiliated withDepartment of Physics and Astronomy, University of Glasgow
    • , I.O. SkillicornAffiliated withDepartment of Physics and Astronomy, University of Glasgow
    • , I. GialasAffiliated withDepartment of Engineering in Management and Finance, Univ. of AegeanDESY
    • , K. PapageorgiuAffiliated withDepartment of Engineering in Management and Finance, Univ. of Aegean
    • , U. HolmAffiliated withInstitute of Exp. Physics, Hamburg University
    • , R. KlannerAffiliated withInstitute of Exp. Physics, Hamburg University
    • , E. LohrmannAffiliated withInstitute of Exp. Physics, Hamburg University
    • , P. SchleperAffiliated withInstitute of Exp. Physics, Hamburg University
    • , T. Schörner-SadeniusAffiliated withInstitute of Exp. Physics, Hamburg University
    • , J. SztukAffiliated withInstitute of Exp. Physics, Hamburg University
    • , H. StadieAffiliated withInstitute of Exp. Physics, Hamburg University
    • , M. TurcatoAffiliated withInstitute of Exp. Physics, Hamburg University
    • , C. FoudasAffiliated withHigh Energy Nuclear Physics Group, Imperial College London
    • , C. FryAffiliated withHigh Energy Nuclear Physics Group, Imperial College London
    • , K.R. LongAffiliated withHigh Energy Nuclear Physics Group, Imperial College London
    • , A.D. TapperAffiliated withHigh Energy Nuclear Physics Group, Imperial College London
    • , T. MatsumotoAffiliated withInstitute of Particle and Nuclear Studies, KEK
    • , K. NaganoAffiliated withInstitute of Particle and Nuclear Studies, KEK
    • , K. TokushukuAffiliated withInstitute of Particle and Nuclear Studies, KEKUniversity of Tokyo
    • , S. YamadaAffiliated withInstitute of Particle and Nuclear Studies, KEK
    • , Y. YamazakiAffiliated withInstitute of Particle and Nuclear Studies, KEKKobe University
    • , A.N. BarakbaevAffiliated withInstitute of Physics and Technology of Ministry of Education and Science of Kazakhstan
    • , E.G. BoosAffiliated withInstitute of Physics and Technology of Ministry of Education and Science of Kazakhstan
    • , N.S. PokrovskiyAffiliated withInstitute of Physics and Technology of Ministry of Education and Science of Kazakhstan
    • , B.O. ZhautykovAffiliated withInstitute of Physics and Technology of Ministry of Education and Science of Kazakhstan
    • , V. AushevAffiliated withInstitute for Nuclear Research, National Academy of Sciences, Kiev and Kiev National University
    • , M. BorodinAffiliated withInstitute for Nuclear Research, National Academy of Sciences, Kiev and Kiev National University
    • , A. KozuliaAffiliated withInstitute for Nuclear Research, National Academy of Sciences, Kiev and Kiev National University
    • , M. LisovyiAffiliated withInstitute for Nuclear Research, National Academy of Sciences, Kiev and Kiev National University
    • , D. SonAffiliated withCenter for High Energy Physics, Kyungpook National University
    • , J. de FavereauAffiliated withInstitut de Physique Nucléaire, Université Catholique de Louvain
    • , K. PiotrzkowskiAffiliated withInstitut de Physique Nucléaire, Université Catholique de Louvain
    • , F. BarreiroAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , C. GlasmanAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , M. JimenezAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , L. LabargaAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , J. del PesoAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , E. RonAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , M. SoaresAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , J. TerrónAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , M. ZambranaAffiliated withDepartamento de Física Teórica, Universidad Autónoma de Madrid
    • , F. CorriveauAffiliated withDepartment of Physics, McGill University
    • , C. LiuAffiliated withDepartment of Physics, McGill University
    • , R. WalshAffiliated withDepartment of Physics, McGill University
    • , C. ZhouAffiliated withDepartment of Physics, McGill University
    • , T. TsurugaiAffiliated withFaculty of General Education, Meiji Gakuin University
    • , A. AntonovAffiliated withMoscow Engineering Physics Institute
    • , B.A. DolgosheinAffiliated withMoscow Engineering Physics Institute
    • , V. SosnovtsevAffiliated withMoscow Engineering Physics Institute
    • , A. StifutkinAffiliated withMoscow Engineering Physics Institute
    • , S. SuchkovAffiliated withMoscow Engineering Physics Institute
    • , R.K. DementievAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , P.F. ErmolovAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , L.K. GladilinAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , L.A. KheinAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , I.A. KorzhavinaAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , V.A. KuzminAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , B.B. LevchenkoAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , O.Y. LukinaAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , A.S. ProskuryakovAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , L.M. ShcheglovaAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , D.S. ZotkinAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , S.A. ZotkinAffiliated withInstitute of Nuclear Physics, Moscow State University
    • , I. AbtAffiliated withMax-Planck-Institut für Physik
    • , C. BüttnerAffiliated withMax-Planck-Institut für Physik
    • , A. CaldwellAffiliated withMax-Planck-Institut für Physik
    • , D. KollarAffiliated withMax-Planck-Institut für Physik
    • , W.B. SchmidkeAffiliated withMax-Planck-Institut für Physik
    • , J. SutiakAffiliated withMax-Planck-Institut für Physik
    • , G. GrigorescuAffiliated withNIKHEF and University of Amsterdam
    • , A. KeramidasAffiliated withNIKHEF and University of Amsterdam
    • , E. KoffemanAffiliated withNIKHEF and University of Amsterdam
    • , P. KooijmanAffiliated withNIKHEF and University of Amsterdam
    • , A. PellegrinoAffiliated withNIKHEF and University of Amsterdam
    • , H. TieckeAffiliated withNIKHEF and University of Amsterdam
    • , M. VázquezAffiliated withNIKHEF and University of AmsterdamCERN
    • , L. WiggersAffiliated withNIKHEF and University of Amsterdam
    • , N. BrümmerAffiliated withPhysics Department, Ohio State University
    • , B. BylsmaAffiliated withPhysics Department, Ohio State University
    • , L.S. DurkinAffiliated withPhysics Department, Ohio State University
    • , A. LeeAffiliated withPhysics Department, Ohio State University
    • , T.Y. LingAffiliated withPhysics Department, Ohio State University
    • , P.D. AllfreyAffiliated withDepartment of Physics, University of Oxford
    • , M.A. BellAffiliated withDepartment of Physics, University of Oxford
    • , A.M. Cooper-SarkarAffiliated withDepartment of Physics, University of Oxford
    • , R.C.E. DevenishAffiliated withDepartment of Physics, University of Oxford
    • , J. FerrandoAffiliated withDepartment of Physics, University of Oxford
    • , B. FosterAffiliated withDepartment of Physics, University of Oxford
    • , K. Korcsak-GorzoAffiliated withDepartment of Physics, University of Oxford
    • , K. OliverAffiliated withDepartment of Physics, University of Oxford
    • , S. PatelAffiliated withDepartment of Physics, University of Oxford
    • , V. RoberfroidAffiliated withDepartment of Physics, University of Oxford
    • , A. RobertsonAffiliated withDepartment of Physics, University of Oxford
    • , P.B. StraubAffiliated withDepartment of Physics, University of Oxford
    • , C. Uribe-EstradaAffiliated withDepartment of Physics, University of Oxford
    • , R. WalczakAffiliated withDepartment of Physics, University of Oxford
    • , P. BellanAffiliated withDipartimento di Fisica, Università and INFN
    • , A. BertolinAffiliated withDipartimento di Fisica, Università and INFN
    • , R. BrugneraAffiliated withDipartimento di Fisica, Università and INFN
    • , R. CarlinAffiliated withDipartimento di Fisica, Università and INFN
    • , F. Dal CorsoAffiliated withDipartimento di Fisica, Università and INFN
    • , S. DusiniAffiliated withDipartimento di Fisica, Università and INFN
    • , A. GarfagniniAffiliated withDipartimento di Fisica, Università and INFN
    • , S. LimentaniAffiliated withDipartimento di Fisica, Università and INFN
    • , A. LonghinAffiliated withDipartimento di Fisica, Università and INFN
    • , L. StancoAffiliated withDipartimento di Fisica, Università and INFN
    • , M. TurcatoAffiliated withDipartimento di Fisica, Università and INFN
    • , B.Y. OhAffiliated withDepartment of Physics, Pennsylvania State University
    • , A. RavalAffiliated withDepartment of Physics, Pennsylvania State University
    • , J. UklejaAffiliated withDepartment of Physics, Pennsylvania State University
    • , J.J. WhitmoreAffiliated withDepartment of Physics, Pennsylvania State University
    • , Y. IgaAffiliated withPolytechnic University
    • , G. D’AgostiniAffiliated withDipartimento di Fisica, Università ‘La Sapienza’ and INFN
    • , G. MariniAffiliated withDipartimento di Fisica, Università ‘La Sapienza’ and INFN
    • , A. NigroAffiliated withDipartimento di Fisica, Università ‘La Sapienza’ and INFN
    • , J.E. ColeAffiliated withRutherford Appleton Laboratory
    • , J.C. HartAffiliated withRutherford Appleton Laboratory
    • , H. AbramowiczAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv UniversityMax Planck Institute
    • , A. GabareenAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University
    • , R. IngbirAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University
    • , S. KananovAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University
    • , A. LevyAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University
    • , O. SmithAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University
    • , A. SternAffiliated withRaymond and Beverly Sackler Faculty of Exact Sciences, School of Physics, Tel-Aviv University
    • , M. KuzeAffiliated withDepartment of Physics, Tokyo Institute of Technology
    • , J. MaedaAffiliated withDepartment of Physics, Tokyo Institute of Technology
    • , R. HoriAffiliated withDepartment of Physics, University of Tokyo
    • , S. KagawaAffiliated withDepartment of Physics, University of TokyoKEK
    • , N. OkazakiAffiliated withDepartment of Physics, University of Tokyo
    • , S. ShimizuAffiliated withDepartment of Physics, University of Tokyo
    • , T. TawaraAffiliated withDepartment of Physics, University of Tokyo
    • , R. HamatsuAffiliated withDepartment of Physics, Tokyo Metropolitan University
    • , H. KajiAffiliated withDepartment of Physics, Tokyo Metropolitan UniversityNagoya University
    • , S. KitamuraAffiliated withDepartment of Physics, Tokyo Metropolitan UniversityDepartment of Radiological Science, Tokyo Metropolitan University
    • , O. OtaAffiliated withDepartment of Physics, Tokyo Metropolitan University
    • , Y.D. RiAffiliated withDepartment of Physics, Tokyo Metropolitan University
    • , M.I. FerreroAffiliated withUniversità di Torino and INFN
    • , V. MonacoAffiliated withUniversità di Torino and INFN
    • , R. SacchiAffiliated withUniversità di Torino and INFN
    • , A. SolanoAffiliated withUniversità di Torino and INFN
    • , M. ArneodoAffiliated withUniversità del Piemonte Orientale, Novara, and INFN
    • , M. CostaAffiliated withUniversità del Piemonte Orientale, Novara, and INFN
    • , M. RuspaAffiliated withUniversità del Piemonte Orientale, Novara, and INFN
    • , S. FourletovAffiliated withDepartment of Physics, University of Toronto
    • , J.F. MartinAffiliated withDepartment of Physics, University of Toronto
    • , T.P. StewartAffiliated withDepartment of Physics, University of Toronto
    • , S.K. BoutleAffiliated withPhysics and Astronomy Department, University College LondonDESY
    • , J.M. ButterworthAffiliated withPhysics and Astronomy Department, University College London
    • , C. GwenlanAffiliated withPhysics and Astronomy Department, University College London
    • , T.W. JonesAffiliated withPhysics and Astronomy Department, University College London
    • , J.H. LoizidesAffiliated withPhysics and Astronomy Department, University College London
    • , M. WingAffiliated withPhysics and Astronomy Department, University College London
    • , B. BrzozowskaAffiliated withInstitute of Experimental Physics, Warsaw University
    • , J. CiborowskiAffiliated withInstitute of Experimental Physics, Warsaw UniversityŁódź University
    • , G. GrzelakAffiliated withInstitute of Experimental Physics, Warsaw University
    • , P. KulinskiAffiliated withInstitute of Experimental Physics, Warsaw University
    • , P. ŁużniakAffiliated withInstitute of Experimental Physics, Warsaw UniversityŁódź University
    • , J. MalkaAffiliated withInstitute of Experimental Physics, Warsaw UniversityŁódź University
    • , R.J. NowakAffiliated withInstitute of Experimental Physics, Warsaw University
    • , J.M. PawlakAffiliated withInstitute of Experimental Physics, Warsaw University
    • , T. TymienieckaAffiliated withInstitute of Experimental Physics, Warsaw University
    • , A. UklejaAffiliated withInstitute of Experimental Physics, Warsaw University
    • , A.F. ŻarneckiAffiliated withInstitute of Experimental Physics, Warsaw University
    • , M. AdamusAffiliated withInstitute for Nuclear Studies
    • , P. PlucinskiAffiliated withInstitute for Nuclear Studies
    • , Y. EisenbergAffiliated withDepartment of Particle Physics, Weizmann Institute
    • , I. GillerAffiliated withDepartment of Particle Physics, Weizmann Institute
    • , D. HochmanAffiliated withDepartment of Particle Physics, Weizmann Institute
    • , U. KarshonAffiliated withDepartment of Particle Physics, Weizmann Institute
    • , M. RosinAffiliated withDepartment of Particle Physics, Weizmann Institute
    • , E. BrownsonAffiliated withDepartment of Physics, University of Wisconsin
    • , T. DanielsonAffiliated withDepartment of Physics, University of Wisconsin
    • , A. EverettAffiliated withDepartment of Physics, University of Wisconsin
    • , D. KçiraAffiliated withDepartment of Physics, University of Wisconsin
    • , D.D. ReederAffiliated withDepartment of Physics, University of Wisconsin
    • , P. RyanAffiliated withDepartment of Physics, University of Wisconsin
    • , A.A. SavinAffiliated withDepartment of Physics, University of Wisconsin
    • , W.H. SmithAffiliated withDepartment of Physics, University of Wisconsin
    • , H. WolfeAffiliated withDepartment of Physics, University of Wisconsin
    • , S. BhadraAffiliated withDepartment of Physics, York University
    • , C.D. CatterallAffiliated withDepartment of Physics, York University
    • , Y. CuiAffiliated withDepartment of Physics, York University
    • , G. HartnerAffiliated withDepartment of Physics, York University
    • , S. MenaryAffiliated withDepartment of Physics, York University
    • , U. NoorAffiliated withDepartment of Physics, York University
    • , J. StandageAffiliated withDepartment of Physics, York University
    • , J. WhyteAffiliated withDepartment of Physics, York University
    • , The ZEUS Collaboration

Abstract

Diffractive photoproduction of dijets was measured with the ZEUS detector at the ep collider HERA using an integrated luminosity of 77.2 pb-1. The measurements were made in the kinematic range Q2 < 1 GeV2, 0.20<y<0.85 and xIP<0.025, where Q2 is the photon virtuality, y is the inelasticity and xIP is the fraction of the proton momentum taken by the diffractive exchange. The two jets with the highest transverse energy, ET jet, were required to satisfy ET jet>7.5 and 6.5 GeV, respectively, and to lie in the pseudorapidity range -1.5<ηjet<1.5. Differential cross sections were compared to perturbative QCD calculations using available parameterisations of diffractive parton distributions of the proton.