학술논문

Diffractive dijet production at HERA
Document Type
Original Paper
Author
Adloff, C.Anderson, M.Andreev, V.Andrieu, B.Arkadov, V.Arndt, C.Ayyaz, I.Babaev, A.Bähr, J.Ban, J.Baranov, P.Barrelet, E.Barschke, R.Bartel, W.Bassler, U.Bate, P.Beck, M.Beglarian, A.Behnke, O.Behrend, H. -J.Beier, C.Belousov, A.Berger, Ch.Bernardi, G.Bertrand-Coremans, G.Biddulph, P.Bizot, J. C.Boudry, V.Braemer, A.Braunschweig, W.Brisson, V.Brown, D. P.Brückner, W.Bruel, P.Bruncko, D.Bürger, J.Büsser, F. W.Buniatian, A.Burke, S.Buschhorn, G.Calvet, D.Campbell, A. J.Carli, T.Chabert, E.Charlet, M.Clarke, D.Clerbaux, B.Cocks, S.Contreras, J. G.Cormack, C.Coughlan, J. A.Cousinou, M. -C.Cox, B. E.Cozzika, G.Cvach, J.Dainton, J. B.Dau, W. D.Daum, K.David, M.Davidsson, M.De Roeck, A.De Wolf, E. A.Delcourt, B.Demirchyan, R.Diaconu, C.Dirkmann, M.Dixon, P.Dlugosz, W.Donovan, K. T.Dowell, J. D.Droutskoi, A.Ebert, J.Eckerlin, G.Eckstein, D.Efremenko, V.Egli, S.Eichler, R.Eisele, F.Eisenhandler, E.Elsen, E.Enzenberger, M.Erdmann, M.Fahr, A. B.Favart, L.Fedotov, A.Felst, R.Feltesse, J.Ferencei, J.Ferrarotto, F.Fleischer, M.Flügge, G.Fomenko, A.Formánek, J.Foster, J. M.Franke, G.Gabathuler, E.Gabathuler, K.Gaede, F.Garvey, J.Gayler, J.Gebauer, M.Gerhards, R.Ghazaryan, S.Glazov, A.Goerlich, L.Gogitidze, N.Goldberg, M.Gorelov, I.Grab, C.Grässler, H.Greenshaw, T.Griffiths, R. K.Grindhammer, G.Gruber, C.Hadig, T.Haidt, D.Hajduk, L.Haller, T.Hampe, M.Haustein, V.Haynes, W. J.Heinemann, B.Heinzelmann, G.Henderson, R. C. W.Hengstmann, S.Henschel, H.Heremans, R.Herynek, I.Hewitt, K.Hiller, K. H.Hilton, C. D.Hladky, J.Hoffmann, D.Holtom, T.Horisberger, R.Hudgson, V. L.Hurling, S.Ibbotson, M.İşsever, Ç.Itterbeck, H.Jacquet, M.Jaffre, M.Jansen, D. M.Jönsson, L.Johnson, D. P.Jung, H.Kaestli, H. C.Kander, M.Kant, D.Karlsson, M.Kathage, U.Katzy, J.Kaufmann, O.Kausch, M.Kenyon, I. R.Kermiche, S.Keuker, C.Riesling, C.Klein, M.Kleinwort, C.Knies, G.Könne, J. H.Kolanoski, H.Kolya, S. D.Korbel, V.Kostka, P.Kotelnikov, S. K.Krämerkämper, T.Krasny, M. W.Krehbiel, H.Krücker, D.Küpper, A.Küster, H.Kuhlen, M.Kurča, T.Laforge, B.Lahmann, R.Landon, M. P. J.Lange, W.Langenegger, U.Lebedev, A.Lehner, F.Lemaitre, V.Levonian, S.Lindstroem, M.List, B.Lobo, G.Lubimov, V.Luke, D.Lytkin, L.Magnussen, N.Mahlke-Krüger, H.Malinovski, E.Maraček, R.Marage, P.Marks, J.Marshall, R.Martin, G.Martyn, H. -U.Martyniak, J.Maxfield, S. J.McMahon, S. J.McMahon, T. R.Mehta, A.Meier, K.Merkel, P.Metlica, F.Meyer, A.Meyer, A.Meyer, H.Meyer, J.Meyer, P. -O.Mikocki, S.Milstead, D.Moeck, J.Mohr, R.Mohrdieck, S.Moreau, F.Morris, J. V.Mroczko, E.Müller, D.Müller, K.Murín, P.Nagovizin, V.Naroska, B.Naumann, Th.Négri, I.Newman, P. R.Newton, D.Nguyen, H. K.Nicholls, T. C.Niebergall, F.Niebuhr, C.Niedzballa, Ch.Niggli, H.Nix, O.Nowak, G.Nunnemann, T.Oberlack, H.Olsson, J. E.Ozerov, D.Palmen, P.Panaro, E.Pascaud, C.Passaggio, S.Patel, G. D.Pawletta, H.Peppel, E.Perez, E.Phillips, J. P.Pieuchot, A.Pitzl, D.Pösch, R.Pope, G.Povh, B.Rabbertz, K.Reimer, P.Reisert, B.Rick, H.Riess, S.Rizvi, E.Robmann, P.Roosen, R.Rosenbauer, K.Rostovtsev, A.Rouse, F.Royon, C.Rusakov, S.Rybicki, K.Sankey, D. P. C.Schacht, P.Scheins, J.Schiek, S.Schleif, S.Schleper, P.Schmidt, D.Schmidt, G.Schoeffe, L.Schröder, V.Schultz-Coulon, H. -C.Schwab, B.Sefkow, F.Semenov, A.Sheelyan, V.Sheviakov, I.Shtarkov, L. N.Siegmon, G.Sirois, Y.Sloan, T.Smirnov, P.Smith, M.Solochenko, V.Soloviev, Y.Specka, A.Spiekermann, J.Spitzer, H.Squinabol, F.Steffen, P.Steinberg, R.Steinhart, J.Stella, B.Stellberger, A.Stiewe, J.Straumann, U.Struczinski, W.Sutton, J. P.Swart, M.Tapprogge, S.Taševský, M.Tchernyshov, V.Tchetchelnitski, S.Theissen, J.Thompson, G.Thompson, P. D.Tobien, N.Todenhagen, R.Truöl, P.Tsipolitis, G.Turnau, J.Tzamariudaki, E.Udluft, S.Usik, A.Valkár, S.Valkárová, A.Vallée, C.Van Esch, P.Van Mechelen, P.Vazdik, Y.Villet, G.Wacker, K.Wallny, R.Walter, T.Waugh, B.Weber, G.Weber, M.Wegener, D.Wegner, A.Wengler, T.Werner, M.West, L. R.Wiesand, S.Wilksen, T.Willard, S.Winde, M.Winter, G. -G.Wittek, C.Wittmann, E.Wobisch, M.Wollatz, H.Wünsch, E.Žáček, J.Zálešâk, J.Zhang, Z.Zhokin, A.Zini, P.Zomer, F.Zsembery, J.zurNedden, M.H1 Collaboration
Source
The European Physical Journal C - Particles and Fields. January 1999 6(3):421-436
Subject
Language
English
ISSN
1434-6044
1434-6052
Abstract
Interactions of the type ep → eXY are studied, where the component X of the hadronic final state contains two jets and is well separated in rapidity from a leading baryonic system Y. Analyses are performed of both resolved and direct photoproduction and of deep-inelastic scattering with photon virtualities in the range 7.5 < Q2 < 80 GeV2. Cross sections are presented where Y has mass MY < 1.6 GeV, the squared four-momentum transferred at the proton vertex satisfies |t| < 1 GeV2 and the two jets each have transverse momentum pTjet > 5 GeV relative to the photon direction in the rest frame of X. Models based on a factorisable diffractive exchange with a gluon dominated structure, evolved to a scale set by the transverse momentum $$q\bar q$$ production, as calculated in perturbative QCD using the squared proton gluon density, represents at most a small fraction of the measured cross section. The compatibility of the data with a breaking of diffractive factorisation due to spectator interactions in resolved photoproduction is investigated.