Measurement of charm and beauty photoproduction at HERA using D*μ correlations

A. Aktas, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, A. Astvatsatourov, A. Babaev, S. Backovic, J. Bähr, A. Baghdasaryan, P. Baranov, E. Barrelet, W. Bartel, S. Baudrand, S. Baumgartner, J. Becker, M. Beckingham, O. Behnke, O. Behrendt, A. BelousovCh Berger, N. Berger, J. C. Bizot, M. O. Boenig, V. Boudry, J. Bracinik, G. Brandt, V. Brisson, D. P. Brown, D. Bruncko, F. W. Büsser, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, S. Caron, F. Cassol-Brunner, K. Cerny, V. Cerny, V. Chekelian, J. G. Contreras, J. A. Coughlan, B. E. Cox, G. Cozzika, J. Cvach, J. B. Dainton, W. D. Dau, K. Daum, B. Delcourt, R. Demirchyan, A. De Roeck, K. Desch, E. A. De Wolf, C. Diaconu, V. Dodonov, A. Dubak, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, M. Ellerbrock, E. Elsen, W. Erdmann, S. Essenov, A. Falkewicz, P. J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, L. Finke, M. Fleischer, P. Fleischmann, Y. H. Fleming, G. Flucke, A. Fomenko, I. Foresti, J. Formánek, G. Franke, G. Frising, T. Frisson, E. Gabathuler, E. Garutti, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, S. Ginzburgskaya, A. Glazov, I. Glushkov, L. Goerlich, M. Goettlich, N. Gogitidze, S. Gorbounov, C. Goyon, C. Grab, T. Greenshaw, M. Gregori, G. Grindhammer, C. Gwilliam, D. Haidt, L. Hajduk, J. Haller, M. Hansson, G. Heinzelmann, R. C.W. Henderson, H. Henschel, O. Henshaw, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, A. Hovhannisyan, M. Ibbotson, M. Ismail, M. Jacquet, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, D. P. Johnson, H. Jung, M. Kapichine, M. Karlsson, J. Katzy, N. Keller, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Klimkovich, T. Kluge, G. Knies, A. Knutsson, V. Korbel, P. Kostka, R. Koutouev, K. Krastev, J. Kretzschmar, A. Kropivnitskaya, K. Krüger, J. Kückens, M. P.J. Landon, W. Lange, T. Laštovicka, P. Laycock, A. Lebedev, B. Leißner, V. Lendermann, S. Levonian, L. Lindfeid, K. Lipka, B. List, E. Lobodzinska, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. I. Lucaci-Timoce, H. Lueders, L. Lytkin, A. Makankine, N. Maiden, E. Maiinovski, S. Mangano, P. Marage, R. Marshall, M. Martisikova, H. U. Martyn, S. J. Maxfieid, D. Meer, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Miicewicz-Mika, D. Miistead, A. Mohamed, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, K. Müiier, P. Murín, K. Nankov, B. Naroska, J. Naumann, Th Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, D. Nikitin, G. Nowak, M. Nozicka, R. Oganezov, B. Oiivier, J. E. Oisson, S. Osman, D. Ozerov, V. Paiichik, T. Papadopouiou, C. Pascaud, G. D. Patei, M. Peez, E. Perez, D. Perez-Astudiiio, A. Perieanu, A. Petrukhin, D. Pitzi, R. Piacakyte, B. Portheauit, B. Povh, P. Prideaux, N. Raicevic, P. Reimer, A. Rimmer, C. Risier, E. Rizvi, P. Robmann, B. Roiand, R. Roosen, A. Rostovtsev, Z. Rurikova, S. Rusakov, F. Saivaire, D. P.C. Sankey, E. Sauvan, S. Schätzei, F. P. Schiiiing, S. Schmidt, S. Schmitt, C. Schmitz, L. Schoeffel, A. Schöning, V. Schroder, H. C. Schuitz-Couion, C. Schwanenberger, K. Sediák, F. Sefkow, I. Sheviakov, L. N. Shtarkov, Y. Sirois, T. Sioan, P. Smirnov, Y. Soioviev, D. South, V. Spaskov, A. Specka, B. Steiia, J. Stiewe, I. Strauch, U. Straumann, V. Tchouiakov, G. Thompson, P. D. Thompson, F. Tomasz, D. Traynor, P. Truöi, I. Tsakov, G. Tsipoiitis, I. Tsurin, J. Turnau, E. Tzamariudaki, M. Urban, A. Usik, D. Utkin, S. Vaikár, A. Vaikárová, C. Vallée, P. Van Mecheien, N. Van Remortei, A. Vargas Trevino, Y. Vazdik, C. Veeiken, A. Vest, S. Vinokurova, V. Volchinski, B. Vujicic, K. Wacker, J. Wagner, G. Weber, R. Weber, D. Wegener, C. Werner, N. Werner, M. Wesseis, B. Wessiing, C. Wigmore, G. G. Winter, Ch Wissing, R. Woif, E. Wünsch, S. Xeiia, W. Yan, V. Yeganov, J. Žácek, J. Záiešák, Z. Zhang, A. Zheiezov, A. Zhokin, J. Zimmermann, H. Zohrabyan, F. Zomer

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Abstract

A measurement of charm and beauty photoproduction at the electron proton collider HERA is presented based on the simultaneous detection of a D*± meson and a muon. The correlation between the D* meson and the muon serves to separate the charm and beauty contributions and the analysis provides comparable sensitivity to both. The total and differential experimental cross sections are compared to LO and NLO QCD calculations. The measured charm cross section is in good agreement with QCD predictions including higher order effects while the beauty cross section is higher.

Original languageEnglish
Pages (from-to)56-71
Number of pages16
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume621
Issue number1-2
DOIs
Publication statusPublished - Aug 11 2005

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Aktas, A., Andreev, V., Anthonis, T., Aplin, S., Asmone, A., Astvatsatourov, A., Babaev, A., Backovic, S., Bähr, J., Baghdasaryan, A., Baranov, P., Barrelet, E., Bartel, W., Baudrand, S., Baumgartner, S., Becker, J., Beckingham, M., Behnke, O., Behrendt, O., ... Zomer, F. (2005). Measurement of charm and beauty photoproduction at HERA using D*μ correlations. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 621(1-2), 56-71. https://doi.org/10.1016/j.physletb.2005.06.040