D*(+/-) meson production in deep-inelastic diffractive interactions at HERA

Authors
Adloff, C Andreev, V Andrieu, B Anthonis, T Arkadov, V Astvatsatourov, A Babaev, A Bahr, J Baranov, P Barrelet, E Bartel, W Bate, P Becker, J Beglarian, A Behnke, O Beier, C Belousov, A Benisch, T Berger, C Berndt, T Bizot, JC Boehme, J Boudry, V Braunschweig, W Brisson, V Broker, HB Brown, DP Bruckner, W Bruncko, D Burger, J Busser, FW Bunyatyan, A Burrage, A Buschhorn, G Bystritskaya, L Campbell, AJ Cao, J Caron, S Cassol-Brunner, F Clarke, D Clerbaux, B Collard, C Contreras, JG Coppens, YR Coughlan, JA Cousinou, MC Cox, BE Cozzika, G Cvach, J Dainton, JB Dau, WD Daum, K Davidsson, M Delcourt, B Delerue, N Demirchyan, R De Roeck, A De Wolf, EA Diaconu, C Dingfelder, J Dixon, P Dodonov, V Dowell, JD 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, PJW Favart, L Fedotov, A Felst, R Ferencei, J Ferron, S Fleischer, M Fleming, YH Flugge, G Fomenko, A Foresti, I Formanek, 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 Grassler, H Greenshaw, T Grindhammer, G Hadig, T Haidt, D Hajduk, L Haller, J Haynes, WJ Heinemann, B Heinzelmann, G Henderson, RCW Hengstmann, S Henschel, H Heremans, R Herrera, G Herynek, I Hildebrandt, M Hilgers, M Hiller, KH Hladky, J Hoting, P Hoffmann, D Horisberger, R Hurling, S Ibbotson, M Issever, C Jacquet, M Jaffre, M Janauschek, L Janssen, X Jemanov, V Jonsson, L Johnson, C Johnson, DP Jones, MAS Jung, H Kant, D Kapichine, M Karlsson, M Karschnick, O Keil, F Keller, N Kennedy, J Kenyon, IR Kermiche, S Kiesling, C Kjellberg, P Klein, M Kleinwort, C Kluge, T Knies, G Koblitz, B Kolya, SD Korbel, V Kostka, P Kotelnikov, SK Koutouev, R Koutov, A Krehbiel, H Kroseberg, J Kruger, K Kupper, A Kuhr, T Kurca, T Lahmann, R Lamb, D Landon, MPJ Lange, W Lastovicka, 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 Luders, S Luke, D Lytkin, L Mahlke-Kruger, H Malden, N Malinovski, E Malinovski, I Maracek, R Marage, P Marks, J Marshall, R Martyn, HU Martyniak, J Maxfield, SJ Meer, D Mehta, A Meier, K Meyer, AB Meyer, H Meyer, J Meyer, PO Mikocki, S Milstead, D Mkrtchyan, T Mohr, R Mohrdieck, S Mondragon, MN Moreau, F Morozov, A Morris, JV Muller, K Murin, R Nagovizin, V Naroska, B Naumann, J Naumann, T Nellen, G Newman, PR Nicholls, TC Niebergall, F Niebuhr, C Nix, O Nowak, G Olsson, JE Ozerov, D Panassik, V Pascaud, C Patel, GD Peez, M Perez, E Phillips, JP Pitzl, D Poschl, R Potachnikova, I Povh, B Rabbertz, K Radel, G Rauschenberger, J Reimer, P Reisert, B Reyna, D Risler, C Rizvi, E Robmann, P Roosen, R Rostovtsev, A Rusakov, S Rybicki, K Sankey, DPC Scheins, J Schilling, FP Schleper, P Schmidt, D Schmidt, D Schmidt, S Schmitt, S Schneider, M Schoeffel, L Schoning, A Schorner, T Schroder, V Schultz-Coulon, HC Schwanenberger, C Sedlak, K Sefkow, F Shekelyan, V Sheviakov, I Shtarkov, LN 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 Tasevsky, M Tchernyshov, V Tchetchelnitski, S Thompson, G Thompson, PD Tobien, N Traynor, D Truol, P Tsipolitis, G Tsurin, I Turnau, J Turney, JE Tzamariudaki, E Udluft, S Urban, M Usik, A Valkar, S Valkarova, A Vallee, 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, GG Wissing, C Wobisch, M Woehrling, EE Wunsch, E Wyatt, AC Zacek, J Zalesak, J Zhang, Z Zhokin, A Zomer, F Zsembery, J zur Nedden, M
Citation
C. Adloff et al., D*(+/-) meson production in deep-inelastic diffractive interactions at HERA, PHYS LETT B, 520(3-4), 2001, pp. 191-203
Citations number
60
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
0370-2693 → ACNP
Volume
520
Issue
3-4
Year of publication
2001
Pages
191 - 203
Database
ISI
SICI code
0370-2693(20011115)520:3-4<191:DMPIDD>2.0.ZU;2-S
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 cr oss section is given for the process ep --> eXY, where the system X contain s 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 dif fractive deep-inelastic region defined by 2 < Q(2) < 100 GeV2, 0.05 < y < 0 .7, x(P) < 0.04, M-Y < 1.6 GeV and \t \ < 1 GeV2. The D*+/- mesons are rest ricted to the range P-T,P-D* > 2 GeV and \ eta (D*)\ < 1.5. The cross secti on is found to be 246 +/- 54 +/- 56 ph and forms about 6% of the correspond ing inclusive D*+/- cross section. The cross section is presented as a func tion of various kinematic variables, including z(P)(obs) which is an estima te of the fraction of the momentum of the diffractive exchange carried by t he parton entering the hard-subprocess. The data show a large component of the cross section at low Z(obs)(P) where the contribution of the boson-gluo n-fusion process is expected to dominate. The data are compared with severa l QCD-based calculations. (C) 2001 Elsevier Science B.V. All rights reserve d.