Measurement of beauty production at HERA using events with muons and jets

A. Aktas, V. Andreev, T. Anthonis, S. Aplin, A. Asmone, 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. Belousov, C. BergerN. 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, Y. de Boer, 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, 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, I. Herynek, 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, J. Kroseberg, K. Krüger, J. Kückens, M. P.J. Landon, W. Lange, T. Laštovička, P. Laycock, A. Lebedev, B. Leißner, V. Lendermann, S. Levonian, L. Lindfeld, K. Lipka, B. List, E. Lobodzinska, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, A. I. Lucaci-Timoce, H. Lueders, D. Lüke, T. Lux, L. Lytkin, A. Makankine, N. Malden, E. Malinovski, S. Mangano, P. Marage, R. Marshall, M. Martisikova, H. U. Martyn, S. J. Maxfield, D. Meer, A. Mehta, K. Meier, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, D. Milstead, A. Mohamed, F. Moreau, A. Morozov, J. V. Morris, M. U. Mozer, K. Müller, P. Murín, K. Nankov, B. Naroska, J. Naumann, T. Naumann, P. R. Newman, C. Niebuhr, A. Nikiforov, D. Nikitin, G. Nowak, M. Nozicka, R. Oganezov, B. Olivier, J. E. Olsson, S. Osman, D. Ozerov, V. Palichik, T. Papadopoulou, C. Pascaud, G. D. Patel, M. Peez, E. Perez, D. Perez-Astudillo, A. Perieanu, A. Petrukhin, D. Pitzl, R. Plačakyte, B. Portheault, B. Povh, P. Prideaux, N. Raicevic, P. Reimer, A. Rimmer, C. Risler, E. Rizvi, P. Robmann, B. Roland, R. Roosen, A. Rostovtsev, Z. Rurikova, S. Rusakov, F. Salvaire, D. P.C. Sankey, E. Sauvan, S. Schätzel, F. P. Schilling, S. Schmidt, S. Schmitt, C. Schmitz, L. Schoeffel, A. Schöning, V. Schröder, H. C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, I. Sheviakov, L. N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, B. Stella, J. Stiewe, I. Strauch, U. Straumann, V. Tchoulakov, G. Thompson, P. D. Thompson, F. Tomasz, D. Traynor, P. Truöl, I. Tsakov, G. Tsipolitis, I. Tsurin, J. Turnau, E. Tzamariudaki, M. Urban, A. Usik, D. Utkin, S. Valkár, A. Valkárová, C. Vallée, P. van Mechelen, N. van Remortel, A. Vargas Trevino, Y. Vazdik, C. Veelken, A. Vest, S. Vinokurova, V. Volchinski, B. Vujicic, K. Wacker, J. Wagner, G. Weber, R. Weber, D. Wegener, C. Werner, N. Werner, M. Wessels, B. Wessling, C. Wigmore, G. G. Winter, C. Wissing, R. Wolf, E. Wünsch, S. Xella, W. Yan, V. Yeganov, J. Žáček, J. Zálešák, Z. Zhang, A. Zhelezov, A. Zhokin, J. Zimmermann, H. Zohrabyan, F. Zomer

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Abstract

A measurement of the beauty production cross section in ep collisions at a centre-of-mass energy of 319 GeV is presented. The data were collected with the H1 detector at the HERA collider in the years 1999-2000. Events are selected by requiring the presence of jets and muons in the final state. Both the long lifetime and the large mass of b-flavoured hadrons are exploited to identify events containing beauty quarks. Differential cross sections are measured in photoproduction, with photon virtualities Q 2 < 1 GeV 2, and in deep inelastic scattering, where 2 < Q 2 < 100 GeV 2. The results are compared with perturbative QCD calculations to leading and next-to-leading order. The predictions are found to be somewhat lower than the data.

Original languageEnglish
Pages (from-to)453-467
Number of pages15
JournalEuropean Physical Journal C
Volume41
Issue number4
DOIs
Publication statusPublished - Jun 2005

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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    Aktas, A., Andreev, V., Anthonis, T., Aplin, S., Asmone, 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., Belousov, A., ... Zomer, F. (2005). Measurement of beauty production at HERA using events with muons and jets. European Physical Journal C, 41(4), 453-467. https://doi.org/10.1140/epjc/s2005-02267-0