Dijet production in diffractive deep inelastic scattering at HERA

S. Chekanov, M. Derrick,S. Magill,B. Musgrave,D. Nicholass,J. Repond,R. Yoshida,M.C.K. Mattingly, M. Jechow,N. Pavel,A.G. Yagües Molina, S. Antonelli, P. Antonioli,G. Bari, M. Basile,L. Bellagamba, M. Bindi, D. Boscherini,A. Bruni,G. Bruni, L. Cifarelli,F. Cindolo,A. Contin,M. Corradi,S. De Pasquale,G. Iacobucci, A. Margotti,R. Nania,A. Polini, G. Sartorelli, A. Zichichi,D. Bartsch, I. Brock,H. Hartmann,E. Hilger,H.-P. Jakob, M. Jüngst, O.M. Kind,A.E. Nuncio-Quiroz,E. Paul,R. Renner,U. Samson,V. Schönberg, R. Shehzadi,M. Wlasenko,N.H. Brook, G.P. Heath,J.D. Morris,M. Capua,S. Fazio,A. Mastroberardino,M. Schioppa,G. Susinno,E. Tassi,J.Y. Kim, K.J. Ma,Z.A. Ibrahim,B. Kamaluddin,W.A.T. Wan Abdullah,Y. Ning,Z. Ren,F. Sciulli,J. Chwastowski,A. Eskreys,J. Figiel, A. Galas,M. Gil, K. Olkiewicz,P. Stopa,L. Zawiejski,L. Adamczyk,T. Bołd, I. Grabowska-Bołd, D. Kisielewska, J. Łukasik, M. Przybycień,L. Suszycki,A. Kotański,W. Słomiński, V. Adler, U. Behrens,I. Bloch,C. Blohm, A. Bonato,K. Borras,R. Ciesielski, N. Coppola,A. Dossanov,V. Drugakov, J. Fourletova, A. Geiser,D. Gladkov, P. Göttlicher,J. Grebenyuk,I. Gregor,T. Haas, W. Hain,C. Horn, A. Hüttmann, B. Kahle, I.I. Katkov,U. Klein,U. Kötz,H. Kowalski, E. Lobodzinska, B. Löhr, R. Mankel, I.-A. Melzer-Pellmann, S. Miglioranzi,A. Montanari,T. Namsoo,D. Notz,L. Rinaldi,P. Roloff,I. Rubinsky, R. Santamarta,U. Schneekloth, A. Spiridonov, H. Stadie, D. Szuba,J. Szuba,T. Theedt,G. Wolf,K. Wrona,C. Youngman, W. Zeuner, W. Lohmann,S. Schlenstedt, G. Barbagli,E. Gallo, P.G. Pelfer,A. Bamberger, D. Dobur, F. Karstens, N.N. Vlasov, P.J. Bussey, A.T. Doyle,W. Dunne,M. Forrest,D.H. Saxon, I.O. Skillicorn,I. Gialas,K. Papageorgiu,T. Gosau,U. Holm, R. Klanner,E. Lohrmann,H. Salehi, P. Schleper, T. Schörner-Sadenius,J. Sztuk, K. Wichmann, K. Wick, C. Foudas,C. Fry, K.R. Long,A.D. Tapper,M. Kataoka,T. Matsumoto,K. Nagano,K. Tokushuku, S. Yamada,Y. Yamazaki, A.N. Barakbaev,E.G. Boos,N.S. Pokrovskiy,B.O. Zhautykov,V. Aushev,M. Borodin, A. Kozulia, M. Lisovyi,D. Son,J. de Favereau,K. Piotrzkowski,F. Barreiro, C. Glasman,M. Jimenez, L. Labarga,J. del Peso,E. Ron,M. Soares, J. Terrón,M. Zambrana, F. Corriveau,C. Liu,R. Walsh,C. Zhou,T. Tsurugai,A. Antonov, B.A. Dolgoshein,V. Sosnovtsev, A. Stifutkin, S. Suchkov, R.K. Dementiev, P.F. Ermolov, L.K. Gladilin, L.A. Khein, I.A. Korzhavina,V.A. Kuzmin, B.B. Levchenko,O.Y. Lukina, A.S. Proskuryakov,L.M. Shcheglova, D.S. Zotkin, S.A. Zotkin,I. Abt, C. Büttner,A. Caldwell,D. Kollar,W.B. Schmidke,J. Sutiak, G. Grigorescu,A. Keramidas, E. Koffeman,P. Kooijman,A. Pellegrino,H. Tiecke,M. Vázquez,L. Wiggers, N. Brümmer, B. Bylsma, L.S. Durkin,A. Lee, T.Y. Ling, P.D. Allfrey,M.A. Bell,A.M. Cooper-Sarkar, R.C.E. Devenish,J. Ferrando,B. Foster, K. Korcsak-Gorzo,K. Oliver,S. Patel,V. Roberfroid,A. Robertson, P.B. Straub,C. Uribe-Estrada, R. Walczak, P. Bellan, A. Bertolin, R. Brugnera,R. Carlin,F. Dal Corso,S. Dusini, A. Garfagnini,S. Limentani,A. Longhin,L. Stanco, M. Turcato, B.Y. Oh,A. Raval,J. Ukleja, J.J. Whitmore,Y. Iga,G. D’Agostini,G. Marini, A. Nigro, J.E. Cole, J.C. Hart, H. Abramowicz,A. Gabareen,R. Ingbir,S. Kananov,A. Levy,O. Smith,A. Stern, M. Kuze, J. Maeda,R. Hori,S. Kagawa,N. Okazaki, S. Shimizu,T. Tawara,R. Hamatsu,H. Kaji,S. Kitamura, O. Ota,Y.D. Ri, M.I. Ferrero, V. Monaco, R. Sacchi, A. Solano,M. Arneodo, M. Ruspa,S. Fourletov,J.F. Martin,S.K. Boutle, J.M. Butterworth, C. Gwenlan, T.W. Jones, J.H. Loizides,M.R. Sutton, M. Wing,B. Brzozowska,J. Ciborowski,G. Grzelak,P. Kulinski, P. Łużniak,J. Malka, R.J. Nowak,J.M. Pawlak,T. Tymieniecka, A. Ukleja,A.F. Żarnecki, M. Adamus, P. Plucinski,Y. Eisenberg, I. Giller,D. Hochman,U. Karshon,M. Rosin, E. Brownson,T. Danielson,A. Everett,D. Kçira, D.D. Reeder, P. Ryan, A.A. Savin, W.H. Smith,H. Wolfe,S. Bhadra, C.D. Catterall,Y. Cui, G. Hartner, S. Menary,U. Noor, J. Standage,J. Whyte

The European Physical Journal C（2007）

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摘要

The production of dijets in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 61 pb -1 . The dijet cross section has been measured for virtualities of the exchanged virtual photon, 5 < Q 2 < 100 GeV 2 , and γ * p centre-of-mass energies, 100 < W < 250 GeV. The jets, identified using the inclusive k T algorithm in the γ * p frame, were required to have a transverse energy E * T,jet > 4 GeV and the jet with the highest transverse energy was required to have E * T,jet > 5 GeV. All jets were required to be in the pseudorapidity range -3.5<η * jet <0. The differential cross sections are compared to leading-order predictions and next-to-leading-order QCD calculations based on recent diffractive parton densities extracted from inclusive diffractive deep inelastic scattering data.

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关键词

Monte Carlo,Deep Inelastic Scattering,ZEUS Collaboration,Dijet Production,Dijet Cross Section

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