학술논문

D∗±meson production in deep-inelastic diffractive interactions at HERA
Document Type
Article
Author
Adloff, C.Andreev, V.Andrieu, B.Anthonis, T.Arkadov, V.Astvatsatourov, A.Babaev, A.Bähr, J.Baranov, P.Barrelet, E.Bartel, W.Bate, P.Becker, J.Beglarian, A.Behnke, O.Beier, C.Belousov, A.Benisch, T.Berger, Ch.Berndt, T.Bizot, J.C.Boehme, J.Boudry, V.Braunschweig, W.Brisson, V.Bröker, H.-B.Brown, D.P.Brückner, W.Bruncko, D.Bürger, J.Büsser, F.W.Bunyatyan, A.Burrage, A.Buschhorn, G.Bystritskaya, L.Campbell, A.J.Cao, J.Caron, S.Cassol-Brunner, F.Clarke, D.Clerbaux, B.Collard, C.Contreras, J.G.Coppens, Y.R.Coughlan, J.A.Cousinou, M.-C.Cox, B.E.Cozzika, G.Cvach, J.Dainton, J.B.Dau, W.D.Daum, K.Davidsson, M.Delcourt, B.Delerue, N.Demirchyan, R.De Roeck, A.De Wolf, E.A.Diaconu, C.Dingfelder, J.Dixon, P.Dodonov, V.Dowell, J.D.Droutskoi, A.Dubak, A.Duprel, C.Eckerlin, G.Eckstein, D.Efremenko, V.Egli, S.Eichler, R.Eisele, F.Eisenhandler, E.Ellerbrock, M.Elsen, E.Erdmann, M.Erdmann, W.Faulkner, P.J.W.Favart, L.Fedotov, A.Felst, R.Ferencei, J.Ferron, S.Fleischer, M.Fleming, Y.H.Flügge, G.Fomenko, A.Foresti, I.Formánek, J.Franke, G.Gabathuler, E.Gabathuler, K.Garvey, J.Gassner, J.Gayler, J.Gerhards, R.Gerlich, C.Ghazaryan, S.Goerlich, L.Gogitidze, N.Goldberg, M.Grab, C.Grässler, H.Greenshaw, T.Grindhammer, G.Hadig, T.Haidt, D.Hajduk, L.Haller, J.Haynes, W.J.Heinemann, B.Heinzelmann, G.Henderson, R.C.W.Hengstmann, S.Henschel, H.Heremans, R.Herrera, G.Herynek, I.Hildebrandt, M.Hilgers, M.Hiller, K.H.Hladký, J.Höting, P.Hoffmann, D.Horisberger, R.Hurling, S.Ibbotson, M.İşsever, Ç.Jacquet, M.Jaffre, M.Janauschek, L.Janssen, X.Jemanov, V.Jönsson, L.Johnson, C.Johnson, D.P.Jones, M.A.S.Jung, H.Kant, D.Kapichine, M.Karlsson, M.Karschnick, O.Keil, F.Keller, N.Kennedy, J.Kenyon, I.R.Kermiche, S.Kiesling, C.Kjellberg, P.Klein, M.Kleinwort, C.Kluge, T.Knies, G.Koblitz, B.Kolya, S.D.Korbel, V.Kostka, P.Kotelnikov, S.K.Koutouev, R.Koutov, A.Krehbiel, H.Kroseberg, J.Krüger, K.Küpper, A.Kuhr, T.Kurča, T.Lahmann, R.Lamb, D.Landon, M.P.J.Lange, W.Laštovička, T.Laycock, P.Lebailly, E.Lebedev, A.Leißner, B.Lemrani, R.Lendermann, V.Levonian, S.Lindstroem, M.List, B.Lobodzinska, E.Lobodzinski, B.Loginov, A.Loktionova, N.Lubimov, V.Lüders, S.Lüke, D.Lytkin, L.Mahlke-Krüger, H.Malden, N.Malinovski, E.Malinovski, I.Maraček, R.Marage, P.Marks, J.Marshall, R.Martyn, H.-U.Martyniak, J.Maxfield, S.J.Meer, D.Mehta, A.Meier, K.Meyer, A.B.Meyer, H.Meyer, J.Meyer, P.-O.Mikocki, S.Milstead, D.Mkrtchyan, T.Mohr, R.Mohrdieck, S.Mondragon, M.N.Moreau, F.Morozov, A.Morris, J.V.Müller, K.Murı́n, P.Nagovizin, V.Naroska, B.Naumann, J.Naumann, Th.Nellen, G.Newman, P.R.Nicholls, T.C.Niebergall, F.Niebuhr, C.Nix, O.Nowak, G.Olsson, J.E.Ozerov, D.Panassik, V.Pascaud, C.Patel, G.D.Peez, M.Perez, E.Phillips, J.P.Pitzl, D.Pöschl, R.Potachnikova, I.Povh, B.Rabbertz, K.Rädel, G.Rauschenberger, J.Reimer, P.Reisert, B.Reyna, D.Risler, C.Rizvi, E.Robmann, P.Roosen, R.Rostovtsev, A.Rusakov, S.Rybicki, K.Sankey, D.P.C.Scheins, J.Schilling, F.-P.Schleper, P.Schmidt, D.Schmidt, D.Schmidt, S.Schmitt, S.Schneider, M.Schoeffel, L.Schöning, A.Schörner, T.Schröder, V.Schultz-Coulon, H.-C.Schwanenberger, C.Sedlák, K.Sefkow, F.Shekelyan, V.Sheviakov, I.Shtarkov, L.N.Sirois, Y.Sloan, T.Smirnov, P.Soloviev, Y.South, D.Spaskov, V.Specka, A.Spitzer, H.Stamen, R.Stella, B.Stiewe, J.Straumann, U.Swart, M.Taševský, M.Tchernyshov, V.Tchetchelnitski, S.Thompson, G.Thompson, P.D.Tobien, N.Traynor, D.Truöl, P.Tsipolitis, G.Tsurin, I.Turnau, J.Turney, J.E.Tzamariudaki, E.Udluft, S.Urban, M.Usik, A.Valkár, S.Valkárová, A.Vallée, C.Van Mechelen, P.Vassiliev, S.Vazdik, Y.Vichnevski, A.Wacker, K.Wallny, R.Waugh, B.Weber, G.Weber, M.Wegener, D.Werner, C.Werner, M.Werner, N.White, G.Wiesand, S.Wilksen, T.Winde, M.Winter, G.-G.Wissing, Ch.Wobisch, M.Woehrling, E.-E.Wünsch, E.Wyatt, A.C.Žáček, J.Zálešák, J.Zhang, Z.Zhokin, A.Zomer, F.Zsembery, J.zur Nedden, M.
Source
Physics Letters B; November 2001, Vol. 520 Issue: 3-4 p191-203, 13p
Subject
Language
ISSN
03702693
Abstract
A measurement is presented of the cross section for D∗±meson production in diffractive deep-inelastic scattering for the first time at HERA. The cross section is given for the process ep→eXY, where the system Xcontains at least one D∗±meson and is separated by a large rapidity gap from a low mass proton remnant system Y. The cross section is presented in the diffractive deep-inelastic region defined by 22 GeV and |ηD∗|<1.5. The cross section is found to be 246±54±56 pb and forms about 6% of the corresponding inclusive D∗±cross section. The cross section is presented as a function of various kinematic variables, including zPobswhich is an estimate of the fraction of the momentum of the diffractive exchange carried by the parton entering the hard-subprocess. The data show a large component of the cross section at low zPobswhere the contribution of the boson–gluon-fusion process is expected to dominate. The data are compared with several QCD-based calculations.