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188 results on '"J. Formánek"'

1. Die Energieeffizienz von Hochtemperatur-Tunnelöfen

Author: J. Formánek and J. Mendheim
Subjects: Marketing, Visual Arts and Performing Arts, Natural materials, media_common.quotation_subject, Ceramics and Composites, Art, Humanities, media_common
Abstract: Der Tunnelofen ist das Herz der meisten Fabriken fur feuerfeste Steine. In den letzten beiden Jahrzehnten wurden Wartung und Instandhaltung zunehmend vernachlassigt. Dieser bedauernswerte Umstand ist haufig die kurzsichtige Antwort auf den harten internationalen Wettbewerb und den Preisdruck des Marktes. Der Artikel zeigt unter Berucksichtigung der Verfahrenstechnologie eines Tunnelofens, einige Moglichkeiten zur Energieoptimierung auf.
Published: 2015

2. A measurement of the proton structure function F-2(x, Q(2)) at low x and low Q(2) at HERA

Author: C. Adloff, S. Aid, M. Anderson, V. Andreev, B. Andrieu, V. Arkadov, C. Arndt, I. Ayyaz, A. Babaev, J. Bähr, J. Bán, Y. Ban, P. Baranov, E. Barrelet, R. Barschke, W. Bartel, U. Bassler, H.P. Beck, M. Beck, H.-J. Behrend, A. Belousov, Ch. Berger, G. Bernardi, G. Bertrand-Coremans, R. Beyer, P. Biddulph, P. Bispham, J.C. Bizot, K. Borras, F. Botterweck, V. Boudry, S. Bourov, A. Braemer, W. Braunschweig, V. Brisson, W. Brückner, P. Bruel, D. Bruncko, C. Brune, R. Buchholz, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, M.J. Burton, G. Buschhorn, D. Calvet, A.J. Campbell, T. Carli, M. Charlet, D. Clarke, B. Clerbaux, S. Cocks, J.G. Contreras, C. Cormack, J.A. Coughlan, A. Courau, M.-C. Cousinou, B.E. Cox, G. Cozzika, D.G. Cussans, J. Cvach, S. Dagoret, J.B. Dainton, W.D. Dau, K. Daum, M. David, C.L. Davis, A. De Roeck, E.A. De Wolf, B. Delcourt, M. Dirkmann, P. Dixon, W. Dlugosz, C. Dollfus, K.T. Donovan, J.D. Dowell, H.B. Dreis, A. Droutskoi, J. Ebert, T.R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, E. Elsen, M. Erdmann, A.B. Fahr, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, J. Formánek, J.M. Foster, G. Franke, E. Gabathuler, K. Gabathuler, F. Gaede, J. Garvey, J. Gayler, M. Gebauer, H. Genzel, R. Gerhards, A. Glazov, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, K. Golec-Biernat, B. Gonzalez-Pineiro, I. Gorelov, C. Grab, H. Grässler, T. Greenshaw, R.K. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, T. Hadig, D. Haidt, L. Hajduk, T. Haller, M. Hampel, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, H. Henschel, I. Herynek, M.F. Hess, K. Hewitt, K.H. Hiller, C.D. Hilton, J. Hladký, M. Höppner, D. Hoffmann, T. Holtom, R. Horisberger, V.L. Hudgson, M. Hütte, M. Ibbotson, Ç. İşsever, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jacquet, M. Jaffre, J. Janoth, D.M. Jansen, L. Jönsson, D.P. Johnson, H. Jung, P.I.P. Kalmus, M. Kander, D. Kant, U. Kathage, J. Katzy, H.H. Kaufmann, O. Kaufmann, M. Kausch, S. Kazarian, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J.H. Köhne, H. Kolanoski, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, T. Krämerkämper, M.W. Krasny, H. Krehbiel, D. Krücker, A. Küpper, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, B. Laforge, M.P.J. Landon, W. Lange, U. Langenegger, A. Lebedev, F. Lehner, V. Lemaitre, S. Levonian, M. Lindstroem, F. Linsel, J. Lipinski, B. List, G. Lobo, J.W. Lomas, G.C. Lopez, V. Lubimov, D. Lüke, L. Lytkin, N. Magnussen, H. Mahlke-Krüger, E. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, J. Martens, G. Martin, R. Martin, H.-U. Martyn, J. Martyniak, T. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, P. Merkel, F. Metlica, A. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, A. Migliori, S. Mikocki, D. Milstead, J. Moeck, F. Moreau, J.V. Morris, E. Mroczko, D. Müller, T. Walter, K. Müller, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th. Naumann, I. Négri, P.R. Newman, D. Newton, H.K. Nguyen, T.C. Nicholls, F. Niebergall, C. Niebuhr, Ch. Niedzballa, H. Niggli, G. Nowak, T. Nunnemann, M. Nyberg-Werther, H. Oberlack, J.E. Olsson, D. Ozerov, P. Palmen, E. Panaro, A. Panitch, C. Pascaud, S. Passaggio, G.D. Patel, H. Pawletta, E. Peppel, E. Perez, J.P. Phillips, A. Pieuchot, D. Pitzl, R. Pöschl, G. Pope, B. Povh, S. Prell, K. Rabbertz, G. Rädel, P. Reimer, H. Rick, S. Riess, E. Rizvi, P. Robmann, R. Roosen, K. Rosenbauer, A. Rostovtsev, F. Rouse, C. Royon, K. Rüter, S. Rusakov, K. Rybicki, D.P.C. Sankey, P. Schacht, S. Schiek, S. Schleif, P. Schleper, W. von Schlippe, D. Schmidt, G. Schmidt, L. Schoeffel, A. Schöning, V. Schröder, E. Schuhmann, B. Schwab, F. Sefkow, A. Semenov, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I.O. Skillicorn, T. Sloan, P. Smirnov, M. Smith, V. Solochenko, Y. Soloviev, A. Specka, J. Spiekermann, S. Spielman, H. Spitzer, F. Squinabol, P. Steffen, R. Steinberg, J. Steinhart, B. Stella, A. Stellberger, J. Stier, J. Stiewe, U. Stöβlein, K. Stolze, U. Straumann, W. Struczinski, J.P. Sutton, S. Tapprogge, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, J. Theissen, G. Thompson, P.D. Thompson, N. Tobien, R. Todenhagen, P. Truöl, G. Tsipolitis, J. Turnau, E. Tzamariudaki, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Valĺee, P. Van Esch, P. Van Mechelen, D. Vandenplas, Y. Vazdik, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, M. Wagener, R. Wallny, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, L.R. West, S. Wiesand, T. Wilksen, S. Willard, M. Winde, G.-G. Winter, C. Wittek, M. Wobisch, H. Wollatz, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, P. Zini, F. Zomer, J. Zsembery, M. zurNedden, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Levy, Jean-Michel, and H1 Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Proton, 010308 nuclear & particles physics, Structure function, FOS: Physical sciences, HERA, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Momentum, High Energy Physics - Experiment (hep-ex), Cross section (physics), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics
Abstract: The results of a measurement of the proton structure function F_2(x,Q^2)and the virtual photon-proton cross section are reported for momentum transfers squared Q^2 between 0.35 GeV^2 and 3.5 GeV^2 and for Bjorken-x values down to 6 10^{-6} using data collected by the HERA experiment H1 in 1995. The data represent an increase in kinematic reach to lower x and Q^2 values of about a factor of 5 compared to previous H1 measurements. Including measurements from fixed target experiments the rise of F_2 with decreasing x is found to be less steep for the lowest Q^2 values measured. Phenomenological models at low Q^2 are compared with the data., Comment: 27 pages, 10 Figures
Published: 2016

3. Search for light gravitinos in events with photons and missing transverse momentum at HERA

Author: V. Yeganov, D. Kant, P. E. Reimer, F. Moreau, G. G. Winter, Laurent Schoeffel, Dusan Bruncko, J. Wagner, Katerina Lipka, B. Naroska, J. Kroseberg, V. Lubimov, Pierre Marage, Murrough Landon, J. Böhme, T. Kluge, V. Tchoulakov, S. Gorbounov, I. R. Kenyon, Karel Cerny, H. U. Martyn, F. Zomer, A. Uraev, V. Andreev, H. Spitzer, Yves Sirois, T. Greenshaw, Erika Garutti, G. Franke, K. Nankov, L. N. Shtarkov, J. Ferencei, M. Martisikova, J. Naumann, I. Foresti, G. Cozzika, Georgios Tsipolitis, M. Fleischer, P. Van Mechelen, R. Weber, J. Marks, Claus Kleinwort, R. D. Heuer, Klaus Desch, Stefan Valkar, B. Olivier, Roland Horisberger, A. Valkárová, H.-B. Bröker, Hannes Jung, D.P. Brown, J. Haller, O. Henshaw, V. Jemanov, Paul Laycock, E. Malinovski, T. Laštovička, A. D.R. Vargas Trevino, A. Dubak, A. Rimmer, C. Wissing, Alexander Zhokin, S. Baumgartner, C. Niebuhr, J. Becker, Adrian Perieanu, C. Vallée, A. Lebedev, O. Behnke, Emmanuel Sauvan, A. Knutsson, S. Levonian, E. Barrelet, Z. Rurikova, Bogdan Povh, F. Sefkow, G. Grindhammer, J. Dingfelder, I. Sheviakov, S. Schmitt, Y. Vazdik, Daniel Pitzl, S. Egli, Y. R. Coppens, P. Baranov, D. Traynor, K. Daum, A. Asmone, K. H. Hiller, R. C. W. Henderson, N. Werner, F. Cassol-Brunner, E. A. De Wolf, Ch. Berger, C. Risler, R. Roosen, E. Perez, D. Haidt, David South, F. Tomasz, G. Knies, L. Hajduk, A. Aktas, Anton Babaev, J. G. Contreras, M. Urban, M. Jacquet, A. Mohamed, G. Weber, U. Straumann, I. Herynek, Thorsten Lux, L. Janauschek, N. Van Remortel, A. Nikiforov, V. Korbel, P.D. Thompson, M. Schneider, Stefania Xella, G. Thompson, Y. Soloviev, Leif J. Jönsson, Benoit Roland, T. Klimkovich, M. Peez, V. Volchinski, J. Zálešák, V. Spaskov, J. Kückens, K. Wacker, Peter Schleper, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, Martin Karlsson, C. Pascaud, P. Truöl, Paul Richard Newman, Guenter Eckerlin, A. Specka, H. Meyer, R. Demirchyan, C. Gwilliam, R. Pöschl, L. Bystritskaya, Eram Rizvi, H. Henschel, F. P. Schilling, Grzegorz Nowak, I. Milcewicz-Mika, Rainer Stamen, R. Koutouev, A. Petrukhin, Xavier Janssen, R. Marshall, J.C. Bizot, Th. Naumann, H. Zohrabyan, G. Heinzelmann, R. Plačakytė, W. Yan, K. Meier, Gero Flucke, M. Kapichine, M. Nozicka, K. Rybicki, A. Vest, O. Behrendt, V. Dodonov, N. Loktionova, V. Chekelian, S. Vinokurova, Pavel Murin, H. Grässler, J. Cvach, I. Strauch, M. Ibbotson, V. Nagovizin, J-P. Meyer, Judith Katzy, A. Makankine, N. Keller, G. Buschhorn, A. Hovhannisyan, J. Scheins, R. Lemrani, B. Delcourt, E. Gabathuler, Philipp Fleischmann, Laurent Favart, Christoph Grab, C. Werner, Y.H. Fleming, V. Lendermann, V. Schröder, L. Lytkin, T. Anthonis, D. Ozerov, I. Tsurin, B. Portheault, P. Kostka, Peter Robmann, Cristinel Diaconu, V. Brisson, J. Garvey, E. E. Elsen, J. Turnau, W.D. Dau, J. B. Dainton, S. Schätzel, A. Schöning, D. Lüke, C. Duprel, P. Höting, E. Wünsch, A. M. Fomenko, B. Leißner, A. Rostovtsev, Dave Sankey, M. Beckingham, Matthias Ulrich Mozer, A. Fedotov, D. Utkin, B. Reisert, G. D. Patel, C. Gerlich, Günter Flügge, M.-O. Boenig, J. Bähr, Wolfram Erdmann, B. List, S. Backovic, Max Klein, S. Ginzburgskaya, C. Kiesling, D.P. Johnson, A. De Roeck, E. Tzamariudaki, A. J. Campbell, H. Lueders, Stephen Maxfield, N. Malden, S. Mangano, M. Ismail, David Milstead, P. A. Smirnov, Wolfgang Lange, J. Stiewe, J. V. Morris, C. Veelken, S. Schmidt, A. Bunyatyan, J. Gayler, Andrew Mehta, J. Bracinik, N. Gogitidze, Nicolas Berger, Ewelina Lobodzinska, M. Wessels, S. Ghazaryan, M. Ellerbrock, G. Herrera, Bradley Cox, R. Wolf, B. Wessling, Anna Kropivnitskaya, Alexander Paramonov, R. Felst, A. Zhelezov, K. Müller, Christian Schwanenberger, John A Coughlan, S. Caron, Magnus Hansson, D.K. Nikitin, L. Goerlich, B. Stella, K. Gabathuler, D. Wegener, V. Efremenko, B. Koblitz, S. Mikocki, J. Formánek, R. Gerhards, K. Krüger, J. Žáček, Hans-Christian Schultz-Coulon, R. Eichler, E.-E. Woehrling, F. Eisele, R. Oganezov, K. Sedlák, J. E. Olsson, W. Bartel, Malte Hildebrandt, F. W. Büsser, T. Berndt, Natasa Raicevic, Vincent Boudry, A. N. Morozov, M. Gregori, Zhen Zhang, Ricardo Lopez-Fernandez, D. Hoffmann, Andreas Meyer, D. Meer, A. Usik, G. Frising, L. Lindfeld, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and H1 Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Yukawa potential, FOS: Physical sciences, HERA, 01 natural sciences, Lightest Supersymmetric Particle, Supersymmetry breaking, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Selectron tube, 0103 physical sciences, Neutralino, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Gravitino, 010306 general physics
Abstract: A search for gravitinos produced in e±p collisions is performed using the H1 detector at HERA. The data were taken at a centre-of-mass energy of 319 GeV and correspond to an integrated luminosity of 64.3 pb -1 for e+p collisions and 13.5 pb-1 for e -p collisions. If R-parity is not conserved, the t-channel exchange of a selectron can produce a neutralino, which, in models where the gravitino is the lightest supersymmetric particle, subsequently decays into a photon and a light gravitino. The resulting event signature, which involves an isolated photon, a jet and missing transverse energy, is analysed for the first time at HERA. No deviation from the Standard Model is found. Exclusion limits on the cross section and on R-parity-violating Yukawa couplings are derived in a Gauge Mediated Supersymmetry Breaking scenario. The results are independent of the squark sector. Neutralinos and supersymmetric partners of the left-handed electron with masses up to 112 GeV and 164 GeV, respectively, can be ruled out at the 95% confidence level for R-parity-violating couplings λ′ equal to 1, in some parts of the parameter space of the considered model. © 2005 Elsevier B.V. All rights reserved., 0, DESY-04-227 / hep-ex/0501030, SCOPUS: ar.j, H1 Collaboration., info:eu-repo/semantics/published
Published: 2005

4. Measurement of $F_2^{c\bar{c}}$ and $F_2^{b\bar{b}}$ at high Q 2 using the H1 vertex detector at HERA

Author: G. G. Winter, G. Thompson, A. Nikiforov, Denis Johnson, K. H. Hiller, R. C. W. Henderson, S. Levonian, Jochen Dingfelder, Y.R. Coppens, T. Frisson, I. Strauch, Philipp Fleischmann, A. Baghdasaryan, A. Rostovtsev, Leif J. Jönsson, Carl Gwilliam, Yves Sirois, O. Behrendt, S. Vinokurova, R. Lemrani, P. Kostka, A. Specka, T. Klimkovich, Dirk L. Hoffmann, David South, J-P. Meyer, G. Franke, B. Vujicic, R. Oganezov, D. Utkin, J. Bähr, A. Makankine, G. Buschhorn, Matthias Ulrich Mozer, J. Turnau, Michael Schneider, A. Fedotov, Günter Flügge, J. Zalesak, R. Roosen, Wolfgang Lange, C. Niebuhr, Grzegorz Nowak, D. Ozerov, R. Weber, S. Ginzburgskaya, J. Gayler, R. Koutouev, A. Petrukhin, V. Andreev, M. Hildebrandt, Johannes Haller, Y. Soloviev, L. Lindfeld, J. E. Olsson, W. Bartel, A. D.R. Vargas Trevino, H. U. Martyn, Matthias Klein, C. Kiesling, E. E. Elsen, Ahmed Tarek Abouelfadl Mohamed, V. Lubimov, A. De Roeck, E. Tzamariudaki, A. J. Campbell, C. Wigmore, F. P. Schilling, M.-O. Boenig, John A Coughlan, B. Portheault, F. W. Büsser, K. Sedlak, Magnus Hansson, V. Jemanov, Peter Robmann, S. Mangano, Christoph Grab, E. Malinovski, Emmanuel Sauvan, K. Nankov, Roland Horisberger, V. Lendermann, A. Valkárová, V. Schröder, G. Grindhammer, Nicolas Berger, L. N. Shtarkov, I. R. Kenyon, T. Berndt, E. Perez, N. Werner, Michael R. Wessels, Natasa Raicevic, L. Goerlich, P. D. Thompson, V. Brisson, B. Leissner, S. Backovic, Vincent Boudry, D. P. C. Sankey, J. Zimmermann, R. Gerhards, A. Zhelezov, S. Baudrand, B. Stella, Adrian Perieanu, N. Keller, Martin Karlsson, Paul Newman, Zuzana Rurikova, Stefan Schmitt, A. N. Morozov, V. Yeganov, Paul Laycock, H. Lueders, D. Perez-Astudillo, M. Gregori, A. Dubak, R. Eichler, Georgios Tsipolitis, M. Fleischer, Ewelina Lobodzinska, Gerhard Brandt, Matthew Beckingham, M. Goettlich, T. Laštovička, F. Moreau, S. J. Aplin, V. Volchinski, H. Meyer, Y. Vazdik, R. Demirchyan, D. Lüke, Anna Kropivnitskaya, A. Aktas, E. Barrelet, B. Olivier, V. Chekelian, R. Felst, Xavier Janssen, J. Formánek, L. Bystritskaya, M. Peez, Stefania Xella, David Milstead, Zhen Zhang, D. Meer, E. A. De Wolf, Ch. Berger, Karlheinz Meier, H. Zohrabyan, D.P. Brown, S. Essenov, Ricardo Lopez-Fernandez, S. Baumgartner, Bogdan Povh, F. Sefkow, P. Höting, M. Jacquet, Th. Naumann, K. Gabathuler, D. Wegener, A. Usik, G. Frising, A. Rimmer, I. Herynek, D. Kant, Benno List, Katerina Lipka, E. Gabathuler, A. Knutsson, J. Garvey, Katja Krüger, Amanda R. Vest, Laurent Schoeffel, Judith Katzy, V. Tchoulakov, A. M. Fomenko, V. Efremenko, Y.H. Fleming, S. Mikocki, Sebastian M. Schmidt, C. Gerlich, C. Goyon, H-C. Schultz-Coulon, R. Pöschl, M. Urban, R. Marshall, T. Kluge, Pavel Murin, H. Grässler, Guenter Eckerlin, André Schöning, I. Milcewicz-Mika, M. Ibbotson, C. Duprel, Laurent Favart, W. Yan, J. Cvach, Ringaile Placakyte, N. Loktionova, A. Hovhannisyan, D. Traynor, C. Risler, G. Weber, U. Straumann, Anton Babaev, J. G. Contreras, I. Tsurin, P. Prideaux, P. Baranov, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, M. Ismail, P. Truöl, P. A. Smirnov, J. Wagner, B. Wessling, Juraj Bracinik, D.K. Nikitin, O. Henshaw, C. Wissing, J. Böhme, Murrough Landon, Karel Cerny, Thorsten Lux, L. Janauschek, N. Van Remortel, A. Uraev, S. Gorbounov, J. Zacek, A. Glazov, J. Scheins, K. Müller, Christian Schwanenberger, V. Korbel, Stephen Maxfield, J. Stiewe, Wolfram Erdmann, Andrew Mehta, P. Van Mechelen, N. Gogitidze, W.D. Dau, J. B. Dainton, R. D. Heuer, L. Finke, M. Ellerbrock, G. Herrera, Alexandre Lebedev, Bradley Cox, C. Werner, K. Daum, F. Tomasz, C. Pascaud, G. Knies, S. Egli, S. Ghazaryan, F. Salvaire, D. Haidt, Eram Rizvi, G. Heinzelmann, V. Dodonov, Sascha Caron, E. Wünsch, G. D. Patel, K. Wacker, N. Malden, J. V. Morris, A. Bunyatyan, Dusan Bruncko, B. Naroska, Klaus Kurt Desch, H. Henschel, J.C. Bizot, T. Greenshaw, Erika Garutti, Fabian Zomer, I. Foresti, G. Cozzika, Stefan Valkar, C. Schmitz, H.-B. Bröker, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, J. Ferencei, M. Martisikova, J. Naumann, Gero Flucke, M. Kapichine, M. Nozicka, J. Marks, B. Delcourt, Roger Wolf, T. Anthonis, Claus Kleinwort, S. Schätzel, I. Sheviakov, V. Spaskov, J. Kückens, A. B. Meyer, B. Roland, V. Nagovizin, E. E. Woehrling, Pierre Marage, I. Glushkov, Christian Veelken, O. Behnke, F. Eisele, Daniel Pitzl, A. Asmone, F. Cassol-Brunner, L. Hajduk, L. Lytkin, Cristinel Diaconu, and P. E. Reimer
Subjects: Quantum chromodynamics, Physics, Particle physics, Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Structure function, HERA, 01 natural sciences, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Vertex detector, Impact parameter, Nuclear Experiment, 010306 general physics, Engineering (miscellaneous)
Abstract: Measurements are presented of inclusive charm and beauty cross sections in e$^+$p collisions at HERA for values of photon virtuality Q$^2$ > 150 GeV$^2$ and of inelasticity 0.1 < y < 0.7. The charm and beauty fractions are determined using a method based on the impact parameter, in the transverse plane, of tracks to the primary vertex, as measured by the H1 vertex detector. The data are divided into four regions in Q$^2$ and Bjorken x, and values for the structure functions $F_2^{c\overline{c}}$ and $F_2^{b\overline{b}}$ are obtained. The results are found to be compatible with the predictions of perturbative quantum chromodynamics.
Published: 2005

5. Search for bosonic stop decays in R-parity violating supersymmetry in e+p collisions at HERA

Author: J. Wagner, J. Böhme, Karel Cerny, A. Uraev, M. Beckingham, Stephen Maxfield, J. Stiewe, Matthias Ulrich Mozer, Wolfgang Lange, Pierre Marage, A. Fedotov, Günter Flügge, V. Lubimov, S. Ginzburgskaya, J. Gayler, A. Lebedev, R. Plačakytė, C. Kiesling, A. De Roeck, E. Tzamariudaki, A. J. Campbell, C. Veelken, Andrew Mehta, J. Bracinik, K. Nankov, L. N. Shtarkov, V. Korbel, N. Gogitidze, D. Haidt, T. Laštovička, Laurent Schoeffel, R. Weber, G. Ossoskov, P. E. Reimer, E. Barrelet, N. Keller, Paul Laycock, E. Malinovski, A. Vest, G. Weber, U. Straumann, C. Werner, Z. Rurikova, Murrough Landon, O. Behnke, Emmanuel Sauvan, O. Behrendt, G. Grindhammer, E. A. De Wolf, Ch. Berger, Peter Robmann, T. J. Sloan, S. Vinokurova, V. Lendermann, J. Dingfelder, S. Gorbounov, R. Lemrani, P. Kostka, Eram Rizvi, B. Portheault, K. H. Hiller, R. C. W. Henderson, G. G. Winter, N. Werner, V. Schröder, M.-O. Boenig, T. Kuhr, Dusan Bruncko, J. Turnau, G. Heinzelmann, B. Naroska, I. Herynek, S. Levonian, R. Roosen, E. E. Elsen, V. Dodonov, P. Van Mechelen, T. Kluge, O. Henshaw, Paul Richard Newman, Grzegorz Nowak, A. Dubak, T. Greenshaw, Erika Garutti, A. Rostovtsev, V. Jemanov, S. Backovic, R. D. Heuer, R. Koutouev, A. Petrukhin, H. Lueders, S. Mangano, Y. Vazdik, M. Wessels, L. Lytkin, P.D. Thompson, M. Ellerbrock, M. Schneider, Cristinel Diaconu, Stefania Xella, J. Ferencei, G. Herrera, I. Morozov, M. Martisikova, J. Naumann, David South, Bradley Cox, J. Marks, I. R. Kenyon, R. Wolf, Alexander Paramonov, L. Bystritskaya, Y. R. Coppens, C. Pascaud, B. Stella, H. Spitzer, K. Daum, F. Tomasz, K. Krüger, Claus Kleinwort, Nicolas Berger, Th. Naumann, Gero Flucke, J. Kennedy, V. Brisson, G. Knies, M. Kapichine, M. Nozicka, H. Zohrabyan, B. Wessling, C. Risler, Guenter Eckerlin, I. Sheviakov, S. Schmitt, A. Nikiforov, E. Gabathuler, D. Lüke, Roland Horisberger, A. Valkárová, Daniel Pitzl, D. Traynor, A. Asmone, A. Schöning, M. Jacquet, E. Wünsch, Rainer Stamen, A. Specka, J. Zálešák, B. Delcourt, V. Spaskov, S. Baumgartner, I. Strauch, Philipp Fleischmann, Dave Sankey, D. Utkin, F. Cassol-Brunner, L. Hajduk, J. Kückens, K. Wacker, Martin Erdmann, M. Urban, J. Kroseberg, Anton Babaev, C. Gwilliam, S. Schätzel, S. Caron, A. Zhelezov, B. Roland, K. Müller, R. Pöschl, I. Milcewicz-Mika, Leif J. Jönsson, Christian Schwanenberger, B. Reisert, J. Bähr, P. Baranov, G. D. Patel, Adrian Perieanu, J. G. Contreras, A. Aktas, Martin Karlsson, R. Marshall, C. Niebuhr, Peter Schleper, T. Klimkovich, V. Chekelian, M. Peez, A. Mohamed, V. Nagovizin, H. U. Martyn, Georgios Tsipolitis, K. Meier, M. Fleischer, B. Olivier, N. Malden, J. Cvach, G. Thompson, S. Egli, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, Y. Soloviev, Max Klein, A. Makankine, G. Buschhorn, P. Höting, D. Ozerov, D.P. Brown, J. Haller, Pavel Murin, H. Grässler, W. Yan, J. V. Morris, D. Kant, Judith Katzy, Y.H. Fleming, H. Henschel, A. Bunyatyan, M. Ibbotson, N. Loktionova, V. Yeganov, Bogdan Povh, F. Sefkow, J.C. Bizot, A. Hovhannisyan, D.K. Nikitin, V. Volchinski, F. P. Schilling, Katerina Lipka, C. Duprel, I. Tsurin, I. Foresti, G. Cozzika, M. Ismail, David Milstead, V. Tchoulakov, P. A. Smirnov, C. Wissing, H. Meyer, R. Demirchyan, Stefan Valkar, J. Garvey, K. Rybicki, Laurent Favart, T. Anthonis, F. Moreau, H.-B. Bröker, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, Xavier Janssen, A. M. Fomenko, C. Gerlich, Christoph Grab, A. D.R. Vargas Trevino, J. Scheins, Klaus Desch, Thorsten Lux, L. Janauschek, N. Van Remortel, A. Rimmer, W.D. Dau, J. B. Dainton, A. Knutsson, B. Leißner, E. Perez, R. Gerhards, J. Formánek, Wolfram Erdmann, B. List, K. Gabathuler, D. Wegener, S. Ghazaryan, V. Efremenko, B. Koblitz, S. Mikocki, S. Schmidt, John A Coughlan, F. Zomer, V. Andreev, Magnus Hansson, Yves Sirois, G. Franke, Daniel Johnson, L. Goerlich, F. Eisele, R. Oganezov, K. Sedlák, Ewelina Lobodzinska, Anna Kropivnitskaya, R. Felst, J. Žáček, Hans-Christian Schultz-Coulon, R. Eichler, E.-E. Woehrling, L. Lindfeld, J. E. Olsson, W. Bartel, Malte Hildebrandt, F. W. Büsser, T. Berndt, Natasa Raicevic, Vincent Boudry, A. N. Morozov, M. Gregori, Zhen Zhang, Ricardo Lopez-Fernandez, J-P. Meyer, D. Hoffmann, Andreas Meyer, D. Meer, A. Usik, and G. Frising
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, High Energy Physics::Phenomenology, Hadron, Scalar (mathematics), Yukawa potential, Supersymmetry, HERA, Nuclear physics, R-parity, High Energy Physics::Experiment, Minimal Supersymmetric Standard Model
Abstract: A search for scalar top quarks in R-parity violating supersymmetry is performed in e(+)p collisions at HERA using the H1 detector. The data, taken at roots = 319 GeV and 301 GeV, correspond to an integrated luminosity of 106 pb(-1). The resonant production of scalar top quarks t in positron quark fusion via an R-parity violating Yukawa coupling lambda' is considered with the subsequent bosonic stop decay t --> BW. The R-parity violating decay of the sbottom quark b --> dv(e) and leptonic and hadronic W decays are considered. No evidence for stop production is found in the search for bosonic stop decays nor in a search for the direct R-parity violating decay t --> eq. Mass dependent limits on lambda' are obtained in the framework of the minimal supersymmetric Standard Model. Stop quarks with masses up to 275 GeV can be excluded at the 95% confidence level for a Yukawa coupling of electromagnetic strength. (C) 2004 Elsevier B.V. All rights reserved.
Published: 2004

6. Measurement of the proton structure function F2 at low Q2 in QED Compton scattering at HERA

Author: W. Yan, N. Loktionova, A. D.R. Vargas Trevino, Paul Richard Newman, Grzegorz Nowak, A. Hovhannisyan, R. Koutouev, A. Petrukhin, Laurent Schoeffel, J. Žáček, I. R. Kenyon, R. Plačakytė, I. Foresti, G. Cozzika, I. Sheviakov, S. Schmitt, M. Jacquet, I. Tsurin, H. Spitzer, Pierre Marage, S. Levonian, E. Perez, P. Höting, Hans-Christian Schultz-Coulon, Murrough Landon, Stefan Valkar, S. Schmidt, Z. Ratiani, Ewelina Lobodzinska, C. Wissing, N. Keller, K. Gabathuler, I. Milcewicz-Mika, H.-B. Bröker, Hannes Jung, R. Gerhards, V. Lendermann, V. Schröder, S. Gorbounov, Anna Kropivnitskaya, R. Felst, D. Wegener, V. Korbel, R. Eichler, J. Kennedy, V. Brisson, C. Niebuhr, Alexander Zhokin, J. Becker, Caroline Collard, J. Zálešák, S. Egli, J. V. Morris, V. Spaskov, Adrian Perieanu, C. Vallée, R. Heremans, E.-E. Woehrling, H. U. Martyn, B. Portheault, Matthias Klein, Y. Soloviev, O. Behnke, P. E. Reimer, David South, Magnus Hansson, J. Kückens, K. Wacker, A. Bunyatyan, L. Goerlich, E. E. Elsen, S. Baumgartner, V. Volchinski, Th. Naumann, P. Van Mechelen, Pavel Murin, H. Grässler, Daniel Pitzl, V. Lubimov, V. Efremenko, D. Traynor, B. Koblitz, M. Ibbotson, F. P. Schilling, Thorsten Lux, L. Janauschek, H. Meyer, R. Demirchyan, T. Laštovička, N. Van Remortel, R. D. Heuer, A. Asmone, Xavier Janssen, I. Morozov, J. Garvey, F. Cassol-Brunner, L. Hajduk, C. Werner, J. Scheins, G. G. Winter, D. Lüke, E. Barrelet, Leif J. Jönsson, Benoit Roland, F. Eisele, Z. Rurikova, E. Gabathuler, L. Bystritskaya, S. Mikocki, G. Thompson, E. Wünsch, D.P. Brown, M. Urban, J. Haller, H. Zohrabyan, R. Oganezov, A. M. Fomenko, V. Chekelian, K. Sedlák, Dave Sankey, T. Klimkovich, W.D. Dau, J. B. Dainton, K. Rybicki, A. Schöning, Judith Katzy, E. A. De Wolf, Ch. Berger, John A Coughlan, C. Gerlich, Karlheinz Meier, R. Roosen, M.-O. Boenig, A. Makankine, Laurent Favart, L. N. Shtarkov, Christoph Grab, J. Wagner, V. Nagovizin, K. Daum, G. Buschhorn, B. Leißner, M. Peez, Y.H. Fleming, T. Anthonis, F. Tomasz, B. Stella, G. D. Patel, J. Kroseberg, S. Mangano, D.P. Johnson, D. Ozerov, J. Böhme, H. Henschel, J.C. Bizot, Karel Cerny, C. Duprel, G. Knies, A. Uraev, N. Malden, F. Zomer, M. Beckingham, R. Weber, Nicolas Berger, Matthias Ulrich Mozer, A. Lebedev, Gero Flucke, V. Andreev, C. Risler, A. Fedotov, Günter Flügge, D. Haidt, L. Lytkin, Cristinel Diaconu, Georgios Tsipolitis, M. Fleischer, M. Kapichine, M. Nozicka, I. Herynek, C. Kiesling, Dusan Bruncko, Eram Rizvi, G. Heinzelmann, A. De Roeck, V. Dodonov, Martin Erdmann, E. Tzamariudaki, A. J. Campbell, S. Michine, J. Formánek, C. Gwilliam, A. Rostovtsev, B. Naroska, J-P. Meyer, B. Delcourt, Yves Sirois, J. Cvach, Bogdan Povh, F. Sefkow, G. Ossoskov, Rainer Stamen, T. Kluge, T. Greenshaw, Erika Garutti, M. Ismail, David Milstead, P. A. Smirnov, P. Baranov, G. Franke, Wolfram Erdmann, B. List, Peter Schleper, S. Schätzel, J. Ferencei, M. Martisikova, J. Naumann, C. Pascaud, J. Marks, Guenter Eckerlin, A. Nikiforov, A. Dubak, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Claus Kleinwort, Sergey Rusakov, P. Truöl, D. Utkin, B. Reisert, J. Bähr, S. Ghazaryan, Y. Vazdik, P.D. Thompson, M. Schneider, S. Caron, Stefania Xella, D.K. Nikitin, B. Wessling, R. Pöschl, O. Henshaw, R. Marshall, K. Müller, Christian Schwanenberger, Stephen Maxfield, M. Hildebrandt, J. Stiewe, Andrew Mehta, J. Bracinik, N. Gogitidze, Anton Babaev, J. G. Contreras, A. Mohamed, M. Wessels, M. Ellerbrock, G. Herrera, Bradley Cox, R. Wolf, Klaus Desch, A. Rimmer, A. Knutsson, Zhen Zhang, Ricardo Lopez-Fernandez, D. Hoffmann, Andreas Meyer, D. Meer, A. Usik, G. Frising, J. E. Olsson, W. Bartel, F. W. Büsser, T. Berndt, Natasa Raicevic, Vincent Boudry, A. N. Morozov, M. Gregori, L. Lindfeld, G. Weber, U. Straumann, V. Jemanov, V. Yeganov, A. Aktas, Y. R. Coppens, F. Moreau, B. Olivier, D. Kant, Katerina Lipka, K. H. Hiller, R. C. W. Henderson, V. Tchoulakov, I. Strauch, Philipp Fleischmann, A. Vest, O. Behrendt, S. Vinokurova, Peter Robmann, R. Lemrani, P. Kostka, J. Turnau, A. Specka, S. Backovic, H. Lueders, Wolfgang Lange, J. Gayler, C. Veelken, Paul Laycock, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, J. Dingfelder, N. Werner, T. Kuhr, Roland Horisberger, A. Valkárová, and Martin Karlsson
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Photon, Proton, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, Detector, Structure function, Compton scattering, HERA, 01 natural sciences, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics
Abstract: The proton structure function F-2(x, Q(2)) is measured in inelastic QED Compton scattering using data collected with the H1 detector at HERA. QED Compton events are used to access the kinematic range of very low virtualities of the exchanged photon, Q(2), down to 0.5 GeV2, and Bjorken x up to similar to 0.06, a region which has not been covered previously by inclusive measurements at HERA. The results are in agreement with the measurements from fixed target lepton-nucleon scattering experiments. (C) 2004 Published by Elsevier B.V.
Published: 2004

7. Forward $\pi^\circ$ production and associated transverse energy flow in deep-inelastic scattering at HERA

Author: V. Nagovizin, Leif J. Jönsson, A. Makankine, G. Buschhorn, D. Ozerov, E. E. Woehrling, V. Panassik, Murrough Landon, Grzegorz Nowak, Pierre Marage, R. Koutouev, A. Petrukhin, M. Davidsson, R. Eichler, H. U. Martyn, Christian Veelken, P. Höting, Matthias Klein, S. Gorbounov, J. Rauschenberger, Michael R. Wessels, V. Lubimov, Paul Laycock, V. Brisson, Amanda R. Vest, E. Malinovski, Emmanuel Sauvan, G. Grindhammer, F. Eisele, S. Vassiliev, Jan Hladky, V. Andreev, A. D.R. Vargas Trevino, Dusan Bruncko, P. Van Mechelen, Laurent Schoeffel, Sascha Caron, N. Werner, E. Wünsch, I. Strauch, B. Leiner, Roland Horisberger, A. Valkárová, V. Jemanov, B. Naroska, Martin Karlsson, Dave Sankey, A. Beglarian, P. Dixon, J. Wagner, T. Kuhr, Philipp Fleischmann, Daniel Pitzl, D.P. Brown, E. Perez, Jean-Arcady Meyer, T. Greenshaw, Yves Sirois, J. Böhme, T. Laštovička, J. Formánek, A. Asmone, N. Delerue, M. zur Nedden, F. Cassol-Brunner, J.P. Phillips, L. Hajduk, Juergen Kroseberg, R. Gerhards, Dirk L. Hoffmann, G. Franke, E. Barrelet, G. D. Patel, K. Wacker, O. Behnke, K. Daum, Wolfgang Lange, A. Uraev, E. A. De Wolf, Ch. Berger, L. N. Shtarkov, J. Cvach, Anton Babaev, D. Traynor, J. Gayler, M. Hildebrandt, Georgios Tsipolitis, M. Urban, J. Ferencei, J. G. Contreras, J. Naumann, J.C. Bizot, P. E. Reimer, M. Fleischer, Karlheinz Meier, N. Malden, F. Tomasz, C. Risler, Angela Mehta, G. Knies, J. Marks, K. Gabathuler, Sebastian M. Schmidt, L. Bystritskaya, Claus Kleinwort, Zhen Zhang, G. G. Winter, I. Herynek, Fabian Zomer, Ricardo Lopez-Fernandez, David Schmidt, A. Aktas, P. A. Smirnov, Pavel Murin, Paul Newman, D. Wegener, Matthew Jones, Caroline Collard, B. Wessling, B. Olivier, H. Grässler, P. D. Thompson, L. Goerlich, M. Ibbotson, I. Sheviakov, S. Baumgartner, I. Foresti, G. Cozzika, C. Niebuhr, Bogdan Povh, F. Sefkow, S. Luders, Christian Johnson, Peter Robmann, Stefan Valkar, F. Keil, Denis Johnson, H.-B. Bröker, Hannes Jung, J. V. Morris, Alexander Zhokin, Laurent Favart, J. Zacek, T. Anthonis, A. Usik, M. Jacquet, B. Reisert, Graham Thompson, V. Efremenko, G. Weber, Martin Erdmann, T. Kluge, F. Niebergall, B. Koblitz, Ewelina Lobodzinska, Matthew Beckingham, U. Straumann, G. Frising, A. Bunyatyan, J. Becker, C. Vallée, H. Spitzer, V. Grabski, Benno List, S. Mikocki, Hans-Christian Schultz-Coulon, Beate Heinemann, Peter Truoel, S. Levonian, L. Lytkin, Anna Kropivnitskaya, S. Michine, V. Chekelian, R. Felst, J. Kueckens, D. Kant, I. Milcewicz-Mika, V. Spaskov, Guenter Eckerlin, Gero Flucke, A. Vichnevski, M. Kapichine, M. Nozicka, Cristinel Diaconu, J. Kennedy, V. Korbel, S. Backovic, Juraj Bracinik, André Schöning, Rainer Stamen, Y.R. Coppens, J. E. Olsson, A. Koutov, B. Delcourt, Johannes Haller, F. Moreau, K. Müller, Christian Schwanenberger, H. Lueders, A. B. Meyer, Judith Katzy, W. Erdmann, C. Pascaud, S. Egli, Stephen Maxfield, W. Bartel, J. Stiewe, S. Schätzel, J. Scheins, Alexandre Lebedev, M. Hilgers, C. Werner, Y.H. Fleming, J. Garvey, D. Haidt, A. M. Fomenko, W.D. Dau, J. B. Dainton, David South, J. D. Dowell, C. Gerlich, N. Gogitidze, T. J. Sloan, Eram Rizvi, G. Heinzelmann, V. Lendermann, V. Schröder, Y. Soloviev, V. Dodonov, C. Duprel, F. W. Büsser, W. Braunschweig, M. Ellerbrock, G. Herrera, Bradley Cox, I. R. Kenyon, T. Berndt, S. Ghazaryan, A. Burrage, Natasa Raicevic, F. P. Schilling, Vincent Boudry, S. D. Kolya, A. N. Morozov, R. Pöschl, V. Volchinski, R. Marshall, H. Henschel, K. Rybicki, J. Gassner, H. Meyer, R. Demirchyan, M. Winde, Christoph Grab, Xavier Janssen, B. M. Waugh, D.K. Nikitin, K. H. Hiller, R. C. W. Henderson, O. Henshaw, Jochen Dingfelder, R. Weber, A. Specka, C. Wissing, M.-O. Boenig, S. Mangano, S. Ferron, L. Janauschek, A. Rostovtsev, J. Bähr, A. Fedotov, Günter Flügge, C. Kiesling, A. De Roeck, E. Tzamariudaki, A. J. Campbell, K. Sedlak, Th. Naumann, E. Gabathuler, D. Meer, O. Behrendt, R. Lemrani, P. Kostka, J. Turnau, Michael Schneider, A. Dubak, Y. Vazdik, D. Lüke, M. Peez, David Milstead, A. Astvatsatourov, D. Clarke, John A Coughlan, B. Stella, N. Keller, Stefan Schmitt, J. Zalesak, R. Roosen, E. E. Elsen, R. Heremans, J. Martyniak, N. Loktionova, A. Hovhannisyan, I. Tsurin, M. C. Cousinou, J.E. Turney, P. Baranov, Peter Schleper, P.J.W. Faulkner, A.S. Belousov, and Sergey Rusakov
Subjects: Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), Proton, Meson, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hadron, Parton, HERA, Deep inelastic scattering, 01 natural sciences, Nuclear physics, Transverse plane, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010303 astronomy & astrophysics, Engineering (miscellaneous)
Abstract: Deep-inelastic positron-proton interactions at low values of Bjorken-x down to x \approx 4.10^-5 which give rise to high transverse momentum pi^0 mesons are studied with the H1 experiment at HERA. The inclusive cross section for pi^0 mesons produced at small angles with respect to the proton remnant (the forward region) is presented as a function of the transverse momentum and energy of the pi^0 and of the four-momentum transfer Q^2 and Bjorken-x. Measurements are also presented of the transverse energy flow in events containing a forward pi^0 meson. Hadronic final state calculations based on QCD models implementing different parton evolution schemes are confronted with the data.
Published: 2004

8. Muon pair production in ep collisions at HERA

Author: Wolfgang Lange, Laurent Schoeffel, J. Gayler, Paul Laycock, E. Malinovski, Emmanuel Sauvan, J. C. Bizot, Murrough Landon, Max Klein, C. Niebuhr, G. Grindhammer, N. Keller, J. Dingfelder, S. Egli, Y. Soloviev, V. Lendermann, V. Schröder, P. D. Thompson, S. Levonian, A. B. Meyer, K. Meier, Dusan Bruncko, S. Mangano, F. Eisele, H. U. Martyn, K. Sedlák, N. Werner, M. Ismail, David Milstead, S. Gorbounov, Y.R. Coppens, B. Naroska, J. B. Dainton, F. Moreau, J. Hladký, V. Korbel, Wolfram Erdmann, T. Kluge, J. E. Olsson, T. Greenshaw, J. G. Contreras, Pierre Marage, T. Kuhr, P. A. Smirnov, F. P. Schilling, A. Makankine, G. Buschhorn, D. Ozerov, R. Weber, J. V. Morris, S. D. Kolya, P. Van Mechelen, S. Michine, A. Bunyatyan, F. W. Büsser, J. Žáček, J. Haller, D. Kant, Stephen Maxfield, J. Ferencei, M. Martisikova, C. Veelken, R. D. Heuer, I. Morozov, L. Bystritskaya, M.-O. Boenig, P. Murín, J. Garvey, J. Scheins, C. Johnson, H. Zohrabyan, Hans-Christian Schultz-Coulon, J. Stiewe, A. Vichnevski, I. R. Kenyon, T. Berndt, C. Risler, A. M. Fomenko, J. D. Dowell, D.P. Brown, S. Ghazaryan, Alexandre Lebedev, W.D. Dau, B. Leißner, Natasa Raicevic, Vincent Boudry, K. Rybicki, Christoph Grab, D. Meer, J. Marks, Andrew Mehta, J. Bracinik, Claus Kleinwort, V. Lubimov, I. Sheviakov, S. Schmitt, C. Werner, D. Haidt, F. Tomasz, C. Gerlich, G. Thompson, O. Behnke, Martin Erdmann, S. Lüders, A. N. Morozov, Nicolas Berger, C. Berger, J. Formánek, M. Gregori, N. Gogitidze, W. Bartel, R. Eichler, G. Knies, S. Caron, T. J. Sloan, A. J. Campbell, B. E. Cox, K. H. Hiller, R. C. W. Henderson, Eram Rizvi, R. Pöschl, A. Rostovtsev, I. Strauch, Philipp Fleischmann, Peter Robmann, M. Winde, P. Baranov, M. Hildebrandt, Roland Horisberger, G. Heinzelmann, V. Dodonov, Daniel Pitzl, D. Traynor, M. Jacquet, A. Asmone, H. Grässler, M. Ibbotson, V. Spaskov, J. Kroseberg, Judith Katzy, H. Henschel, A. Valkárová, L. N. Shtarkov, F. Cassol-Brunner, K. Gabathuler, D.K. Nikitin, O. Henshaw, Paul Newman, D. Wegener, V. Grabski, W. Braunschweig, F. Zomer, J. Kückens, Y.H. Fleming, H. Spitzer, Rainer Stamen, L. Hajduk, C. Wissing, Laurent Favart, T. Anthonis, M. Wessels, D. South, E. Wünsch, C. Duprel, M. Urban, Adrian Perieanu, Dave Sankey, N. Delerue, M. Ellerbrock, V. Andreev, A. Specka, Thorsten Lux, L. Janauschek, Martin Karlsson, Gero Flucke, R. Marshall, B. Reisert, J. Bähr, G. Herrera, B. Waugh, G. Weber, M. C. Cousinou, U. Straumann, M. Kapichine, M. Nozicka, G. D. Patel, V. Jemanov, S. Backovic, B. Wessling, Thomas Naumann, V. Efremenko, B. Koblitz, V. Chekelian, D.P. Johnson, V. Nagovizin, N. Malden, Georgios Tsipolitis, H. Lueders, V. Volchinski, A. Vest, O. Behrendt, E. E. Woehrling, S. Vinokurova, M. Fleischer, S. Mikocki, J. Wagner, Yves Sirois, R. Lemrani, H. Meyer, Klaus Desch, J. Böhme, R. Demirchyan, P. Kostka, Karel Cerny, A. Uraev, G. Franke, J. Turnau, L. Lytkin, Cristinel Diaconu, B. List, A. Knutsson, A. Babaev, A. Aktas, S. Schätzel, Bogdan Povh, B. Olivier, Xavier Janssen, F. Sefkow, G. Ossoskov, I. Milcewicz, Leif J. Jönsson, K. Müller, Christian Schwanenberger, Grzegorz Nowak, R. Koutouev, A. Petrukhin, Zhen Zhang, J-P. Meyer, Ricardo Lopez-Fernandez, I. Foresti, S. Baumgartner, G. Cozzika, C. Pascaud, D. Hoffmann, Guenter Eckerlin, André Schöning, A. Usik, Stefan Valkar, G. Frising, J. Cvach, A. Belousov, Peter Schleper, H.-B. Bröker, Hannes Jung, J. Kennedy, Alexander Zhokin, J. Becker, C. Vallée, P.J.W. Faulkner, V. Brisson, R. Heremans, S. Vassiliev, Sergey Rusakov, P. Truöl, W. Yan, C. Collard, T. Laštovička, N. Loktionova, J. Gassner, A. Hovhannisyan, E. Barrelet, Z. Rurikova, I. Tsurin, B. Portheault, E. A. De Wolf, J. Zalesak, E. E. Elsen, J. Martyniak, R. Roosen, J. A. Coughlan, I. Herynek, B. Delcourt, B. Stella, K. Daum, J. Rauschenberger, A. D.R. Vargas Trevino, E. Perez, R. Gerhards, P. E. Reimer, G. G. Winter, J. Naumann, L. Goerlich, P. Höting, S. Schmidt, Ewelina Lobodzinska, Anna Kropivnitskaya, R. Felst, M. Beckingham, Matthias Ulrich Mozer, A. Fedotov, Günter Flügge, C. Kiesling, A. De Roeck, E. Tzamariudaki, E. Gabathuler, K. Wacker, A. Dubak, Y. Vazdik, D. Lüke, M. Schneider, M. Peez, H1 Collaboration, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Damoiseaux, Magali
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Muon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, FOS: Physical sciences, HERA, Electron, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pair production, Full data, 0103 physical sciences, Transverse momentum, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Cross sections for the production of two isolated muons up to high di-muon masses are measured in ep collisions at HERA with the H1 detector in a data sample corresponding to an integrated luminosity of 71 pb-1 at a centre of mass energy of √s=319 GeV. The results are in good agreement with Standard Model predictions, the dominant process being photon-photon interactions. Additional muons or electrons are searched for in events with two high transverse momentum muons using the full data sample corresponding to 114 pb-1, where data at √s=301 GeV and √s=319 GeV are combined. Both the di-lepton sample and the tri-lepton sample agree well with the predictions. © 2004 Published by Elsevier B.V., 0, DESY-03-159 / hep-ex/0311015, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2004

9. Benzin, Benzinersatzstoffe und Mineralschmiermittel ihre Untersuchung, Beurteilung und Verwendung

Author: J. Formánek and J. Formánek
Subjects: Biotechnology, Materials—Analysis
Published: 2013

10. Search for new physics in e±q contact interactions at HERA

Author: V. Jemanov, C. Niebuhr, Laurent Schoeffel, Murrough Landon, Paul Richard Newman, Grzegorz Nowak, N. Loktionova, J. Gassner, A. Hovhannisyan, J.G. Contreras, I. Tsurin, M. C. Cousinou, J.E. Turney, P. Baranov, Peter Schleper, S. Egli, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, R. Koutouev, A. Petrukhin, S. Mangano, D. Lüke, C. Wissing, J. Zalesak, Y. Soloviev, E. Wünsch, P. Höting, L. Janauschek, I. Potachnikova, J. Martyniak, S. Lüders, G. Buschhorn, D. Ozerov, V. Lubimov, Dusan Bruncko, B. Naroska, K. H. Hiller, T. Kluge, T. Greenshaw, Rainer Wallny, A. Astvatsatourov, Paul Laycock, E. Malinovski, F. P. Schilling, Doris Eckstein, P. Van Mechelen, R. C. W. Henderson, E. Eisenhandler, R. Pöschl, J. Cvach, G. Grindhammer, G. D. Patel, D.P. Johnson, J. Ferencei, J. Naumann, J. Marks, J. Formánek, J. Dingfelder, N. Werner, D. Clarke, B. Waugh, Claus Kleinwort, S. Baumgartner, N. Malden, Wolfram Erdmann, B. List, M. zur Nedden, Pierre Marage, John A Coughlan, I. Sheviakov, J. Rauschenberger, G. Weber, U. Straumann, D. Kant, David Schmidt, K. Sedlák, O. Karschnick, K. Gabathuler, K. Rybicki, D. Wegener, W.J. Haynes, S. Schmidt, J. V. Morris, C. Risler, K. Daum, S. Mohrdieck, D. P. C. Sankey, A. Specka, Caroline Collard, Christoph Grab, J. Kennedy, V. Brisson, S. Vassiliev, J. Wagner, A. D.R. Vargas Trevino, C. Adloff, F. Keil, H. Meyer, R. Demirchyan, M.N. Mondragon, A. Bunyatyan, Leif J. Jönsson, V. Efremenko, B. Koblitz, Markus Wobisch, Xavier Janssen, J. Böhme, Stephen Maxfield, L. N. Shtarkov, F. Tomasz, V. Spaskov, R. Maraček, R. Marshall, Ewelina Lobodzinska, A. Beglarian, Pavel Murin, H. Grässler, K. Wacker, J. Stiewe, O. Behnke, S. Mikocki, A. Uraev, G. Knies, J-P. Meyer, Martin Erdmann, J. Žáček, M. Ibbotson, A. Knutsson, T. Schörner-Sadenius, T. Laštovička, R. Felst, Matthew Jones, B. Stella, F. Niebergall, Stefan Schmitt, Andrew Mehta, E. Barrelet, P. Dixon, Hans-Christian Schultz-Coulon, Glenn J. White, M. Hildebrandt, A. Vichnevski, A. Lebedev, F. Sefkow, V. Chekelian, V. Korbel, P. Kjellberg, F. Moreau, J. Hladký, J. D. Dowell, B. Lobodzinski, A. Vest, A. Rostovtsev, N. Gogitidze, V. Nagovizin, A. Droutskoi, D. Haidt, E. Perez, S. Caron, V. Panassik, E. A. De Wolf, Ch. Berger, Karlheinz Meier, R. Roosen, S. Hengstmann, Judith Katzy, S. Hurling, Eram Rizvi, G. Heinzelmann, R. Eichler, R. Gerhards, M. Winde, S. D. Kolya, V. Dodonov, L. Lytkin, E.-E. Woehrling, C. Werner, Laurent Favart, T. Anthonis, Cristinel Diaconu, Ç. İşsever, T. Wilksen, P. E. Reimer, C. Johnson, F. Zomer, C. Duprel, I. Herynek, Daniel Pitzl, V. Andreev, L. Bystritskaya, R. Lemrani, P. Kostka, J. Turnau, T. Kuhr, B. Reisert, J. Bähr, S. Levonian, I. R. Kenyon, G. G. Winter, D. Traynor, H. U. Martyn, O. Nix, F. Cassol-Brunner, S. K. Kotelnikov, L. Hajduk, D. South, M. Wessels, M. Urban, H. Spitzer, D.P. Brown, J. Haller, Yves Sirois, M. Ellerbrock, G. Thompson, B. Andrieu, S. Ghazaryan, M. Davidsson, Bradley Cox, G. Franke, Katja Krüger, L. Goerlich, S. Michine, Roland Horisberger, A. Valkárová, H. Henschel, J.C. Bizot, N. Delerue, K. Müller, Christian Schwanenberger, Anton Babaev, I. Foresti, G. Cozzika, F. Eisele, J.P. Phillips, Stefan Valkar, H.-B. Bröker, Martin Karlsson, Hannes Jung, D. Lamb, Alexander Zhokin, J. Becker, C. Vallée, R. Heremans, M. Kapichine, M. Nozicka, A. Koutov, B. Delcourt, S. Schätzel, N. Keller, V. Lendermann, V. Schröder, Eckhard Elsen, Wolfgang Lange, J. Gayler, R. Stamen, Peter Robmann, J. Scheins, W.D. Dau, J. B. Dainton, B. Leißner, A. Loginov, M. Jacquet, Zhen Zhang, T. Hadig, G. Herrera, V. Grabski, D. Hoffmann, Andreas Meyer, D. Meer, A. Usik, G. Frising, Y. R. Coppens, Max Klein, I. Strauch, Philipp Fleischmann, Beate Heinemann, David Milstead, C. Pascaud, P. A. Smirnov, Guenter Eckerlin, S. Ferron, S. Wiesand, Th. Naumann, M. Jaffre, J. E. Olsson, W. Bartel, M. Hilgers, J. Garvey, F. W. Büsser, W. Braunschweig, A. M. Fomenko, E. Lebailly, C. Gerlich, T. Berndt, A. Burrage, E. Gabathuler, J. Kroseberg, Vincent Boudry, Y. H. Fleming, A. N. Morozov, Georgios Tsipolitis, M. Fleischer, A. Schöning, Bogdan Povh, A. Dubak, Y. Vazdik, P.D. Thompson, S. Tchetchelnitski, M. Schneider, M. Peez, M. Beckingham, A. Fedotov, Günter Flügge, C. Kiesling, A.C. Wyatt, A. De Roeck, E. Tzamariudaki, A. J. Campbell, and H1 Collaboration
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, Neutral current, Physics beyond the Standard Model, High Energy Physics::Phenomenology, Momentum transfer, FOS: Physical sciences, HERA, Supersymmetry, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Large extra dimension, High Energy Physics::Experiment
Abstract: Deep-inelastic e^\pm p scattering at high squared momentum transfer Q^2 up to 30000 GeV^2 is used to search for eq contact interactions associated to scales far beyond the HERA centre of mass energy. The neutral current cross section measurements d sigma / d Q^2, corresponding to integrated luminosities of 16.4 pb^-1 of e^- p data and 100.8 pb^-1 of e^+ p data, are well described by the Standard Model and are analysed to set constraints on new phenomena. For conventional contact interactions lower limits are set on compositeness scales Lambda ranging between 1.6 - 5.5 TeV. Couplings and masses of leptoquarks and squarks in R-parity violating supersymmetry are constrained to M / lambda > 0.3 - 1.4 TeV. A search for low scale quantum gravity effects in models with large extra dimensions provides limits on the effective Planck scale of M_S > 0.8 TeV. A form factor analysis yields a bound on the radius of light quarks of R_q < 1.0 x 10^-18 m., 15 pages, 5 figures and 5 tables
Published: 2003

11. Elastic photoproduction of J/ψ and ϒ mesons at HERA

Author: C. Adloff, V. Andreev, B. Andrieu, V. Arkadov, A. Astvatsatourov, I. Ayyaz, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, U. Bassler, P. Bate, A. Beglarian, O. Behnke, C. Beier, A. Belousov, T. Benisch, Ch. Berger, G. Bernardi, T. Berndt, J.C. Bizot, K. Borras, V. Boudry, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, W. Brückner, P. Bruel, D. Bruncko, J. Bürger, F.W. Büsser, A. Bunyatyan, H. Burkhardt, A. Burrage, G. Buschhorn, A.J. Campbell, J. Cao, T. Carli, S. Caron, E. Chabert, D. Clarke, B. Clerbaux, C. Collard, J.G. Contreras, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. David, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, P. Dixon, V. Dodonov, J.D. Dowell, A. Droutskoi, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, J.M. Foster, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Goldberg, C. Goodwin, C. Grab, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, T. Hauschildt, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hilgers, K.H. Hiller, C.D. Hilton, J. Hladký, P. Höting, D. Hoffmann, W. Hoprich, R. Horisberger, S. Hurling, M. Ibbotson, Ç. İşsever, M. Jacquet, M. Jaffre, L. Janauschek, D.M. Jansen, X. Janssen, V. Jemanov, L. Jönsson, D.P. Johnson, M.A.S. Jones, H. Jung, H.K. Kästli, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, O. Kaufmann, M. Kausch, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, S. Kermiche, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, B. Koblitz, H. Kolanoski, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, M.W. Krasny, H. Krehbiel, J. Kroseberg, D. Krücker, K. Krüger, A. Küpper, T. Kuhr, T. Kurča, R. Kutuev, W. Lachnit, R. Lahmann, D. Lamb, M.P.J. Landon, W. Lange, T. Laštovička, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, N. Magnussen, H. Mahlke-Krüger, N. Malden, E. Malinovski, I. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, A. Mehta, K. Meier, P. Merkel, F. Metlica, A. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, S. Mikocki, D. Milstead, T. Mkrtchyan, R. Mohr, S. Mohrdieck, M.N. Mondragon, F. Moreau, A. Morozov, J.V. Morris, D. Müller, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, I. Négri, G. Nellen, P.R. Newman, T.C. Nicholls, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, T. Nunnemann, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, E. Perez, J.P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, K. Rabbertz, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, D. Reyna, S. Riess, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, C. Royon, S. Rusakov, K. Rybicki, D.P.C. Sankey, J. Scheins, F.-P. Schilling, S. Schleif, P. Schleper, D. Schmidt, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H.-C. Schultz-Coulon, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, G. Siegmon, P. Sievers, Y. Sirois, T. Sloan, P. Smirnov, V. Solochenko, Y. Soloviev, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, J. Steinhart, B. Stella, A. Stellberger, J. Stiewe, U. Straumann, W. Struczinski, M. Swart, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, G. Thompson, P.D. Thompson, N. Tobien, D. Traynor, P. Truöl, G. Tsipolitis, J. Turnau, J.E. Turney, E. Tzamariudaki, S. Udluft, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, S. von Dombrowski, K. Wacker, R. Wallny, T. Walter, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, G. White, S. Wiesand, T. Wilksen, M. Winde, G.-G. Winter, C. Wissing, M. Wobisch, H. Wollatz, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, and M. zur Nedden
Subjects: Physics, Scattering cross-section, Nuclear and High Energy Physics, Range (particle radiation), Particle physics, Meson, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Perturbative QCD, Sigma, HERA, Regge theory, Pomeron, High Energy Physics::Experiment, Nuclear Experiment
Abstract: Cross sections for elastic photoproduction of J/Psi and Upsilon mesons are presented. For J/Psi mesons the dependence on the photon-proton centre-of-mass energy W_gammap is analysed in an extended range with respect to previous measurements of 26
Published: 2000

12. Determination of the longitudinal proton structure function FL(x,Q2) at low x

Author: C. Adloff, S. Aid, M. Anderson, V. Andreev, B. Andrieu, C. Arndt, A. Babaev, J. Bähr, J. Bán, Y. Ban, P. Baranov, E. Barrelet, R. Barschke, W. Bartel, M. Barth, U. Bassler, H.P. Beck, M. Beck, H.-J. Behrend, A. Belousov, Ch. Berger, G. Bernardi, G. Bertrand-Coremans, M. Besançon, R. Beyer, P. Biddulph, P. Bispham, J.C. Bizot, V. Blobel, J. Blümlein, K. Borras, F. Botterweck, V. Boudry, A. Braemer, W. Braunschweig, V. Brisson, W. Brückner, P. Bruel, D. Bruncko, C. Brune, R. Buchholz, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, M.J. Burton, D. Calvet, A.J. Campbell, T. Carli, M. Charlet, D. Clarke, A.B. Clegg, B. Clerbaux, S. Cocks, J.G. Contreras, C. Cormack, J.A. Coughlan, A. Courau, M.-C. Cousinou, G. Cozzika, L. Criegee, D.G. Cussans, J. Cvach, S. Dagoret, J.B. Dainton, W.D. Dau, K. Daum, M. David, C.L. Davis, B. Delcourt, A. De Roeck, E.A. De Wolf, M. Dirkmann, P. Dixon, P. Di Nezza, W. Dlugosz, C. Dollfus, K.T. Donovan, J.D. Dowell, H.B. Dreis, A. Droutskoi, O. Dünger, H. Duhm, J. Ebert, T.R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, E. Elsen, M. Erdmann, W. Erdmann, A.B. Fahr, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, J. Formánek, J.M. Foster, G. Franke, E. Fretwurst, E. Gabathuler, K. Gabathuler, F. Gaede, J. Garvey, J. Gayler, M. Gebauer, H. Genzel, R. Gerhards, A. Glazov, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, K. Golec-Biernat, B. Gonzalez-Pineiro, I. Gorelov, C. Grab, H. Grässler, T. Greenshaw, R.K. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, T. Hadig, D. Haidt, L. Hajduk, T. Haller, M. Hampel, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, H. Henschel, I. Herynek, M.F. Hess, K. Hewitt, W. Hildesheim, K.H. Hiller, C.D. Hilton, J. Hladký, M. Höppner, D. Hoffmann, T. Holtom, R. Horisberger, V.L. Hudgson, M. Hütte, M. Ibbotson, Ç. İşsever, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jaffre, J. Janoth, D.M. Jansen, T. Jansen, L. Jönsson, D.P. Johnson, H. Jung, P.I.P. Kalmus, M. Kander, D. Kant, R. Kaschowitz, U. Kathage, J. Katzy, H.H. Kaufmann, O. Kaufmann, M. Kausch, S. Kazarian, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J.H. Köhne, H. Kolanoski, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, T. Krämerkämper, H. Krehbiel, D. Krücker, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, D. Lacour, B. Laforge, M.P.J. Landon, W. Lange, U. Langenegger, A. Lebedev, F. Lehner, S. Levonian, G. Lindström, M. Lindstroem, F. Linsel, J. Lipinski, B. List, G. Lobo, P. Loch, J.W. Lomas, G.C. Lopez, V. Lubimov, D. Lüke, L. Lytkin, N. Magnussen, E. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, J. Martens, G. Martin, R. Martin, H.-U. Martyn, J. Martyniak, T. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, F. Metlica, A. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, A. Migliori, S. Mikocki, D. Milstead, J. Moeck, F. Moreau, J.V. Morris, E. Mroczko, D. Müller, G. Müller, K. Müller, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th. Naumann, I. Négri, P.R. Newman, D. Newton, H.K. Nguyen, T.C. Nicholls, F. Niebergall, C. Niebuhr, Ch. Niedzballa, H. Niggli, G. Nowak, G.W. Noyes, T. Nunnemann, M. Nyberg-Werther, M. Oakden, H. Oberlack, J.E. Olsson, D. Ozerov, P. Palmen, E. Panaro, A. Panitch, C. Pascaud, G.D. Patel, H. Pawletta, E. Peppel, E. Perez, J.P. Phillips, A. Pieuchot, D. Pitzl, G. Pope, B. Povh, S. Prell, K. Rabbertz, G. Rädel, P. Reimer, S. Reinshagen, S. Riemersma, H. Rick, F. Riepenhausen, S. Riess, E. Rizvi, P. Robmann, H.E. Roloff, R. Roosen, K. Rosenbauer, A. Rostovtsev, F. Rouse, C. Royon, K. Rüter, S. Rusakov, K. Rybicki, D.P.C. Sankey, P. Schacht, S. Schiek, S. Schleif, P. Schleper, W. von Schlippe, D. Schmidt, G. Schmidt, L. Schoeffel, A. Schöning, V. Schröder, E. Schuhmann, B. Schwab, F. Sefkow, R. Sell, A. Semenov, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I.O. Skillicorn, P. Smirnov, V. Solochenko, Y. Soloviev, A. Specka, J. Spiekermann, S. Spielman, H. Spitzer, F. Squinabol, P. Steffen, R. Steinberg, H. Steiner, J. Steinhart, B. Stella, A. Stellberger, J. Stier, J. Stiewe, U. Stößlein, K. Stolze, U. Straumann, W. Struczinski, J.P. Sutton, S. Tapprogge, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, J. Theissen, C. Thiebaux, G. Thompson, N. Tobien, R. Todenhagen, P. Truöl, G. Tsipolitis, J. Turnau, J. Tutas, E. Tzamariudaki, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Vallée, D. Vandenplas, P. Van Esch, P. Van Mechelen, Y. Vazdik, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, M. Wagener, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, L.R. West, T. Wilksen, S. Willard, M. Winde, G.-G. Winter, C. Wittek, M. Wobisch, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, P. Zini, F. Zomer, J. Zsembery, K. Zuber, M. zurNedden, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Quantum chromodynamics, Nuclear and High Energy Physics, Particle physics, Proton, 010308 nuclear & particles physics, Scattering, FOS: Physical sciences, Order (ring theory), HERA, 01 natural sciences, High Energy Physics - Experiment, Momentum, High Energy Physics - Experiment (hep-ex), Cross section (physics), Positron, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: A measurement of the inclusive cross section for the deep-inelastic scattering of positrons off protons at HERA is presented at momentum transfers $8.5 \leq Q^2 \leq 35 GeV^2$ and large inelasticity $y = 0.7$, i.e. for the Bjorken-x range $0.00013 \leq x \leq 0.00055$. Using a next-to-leading order QCD fit to the structure function F_2 at lower y values, the contribution of F_2 to the measured cross section at high y is calculated and, by subtraction, the longitudinal structure function F_{L} is determined for the first time with an average value of $F_L=0.52 \pm 0.03 (stat)$^ {+0.25}_{-0.22}$ (syst) at $Q^2=15.4 GeV^2$ and $x=0.000243$., 17 pages, latex, 4 Figures
Published: 1997

13. Photoproduction of mesons in electron-proton collisions at HERA

Author: S. Aid, V. Andreev, B. Andrieu, R.-D. Appuhn, M. Arpagaus, A. Babaev, J. Bähr, J. Bán, Y. Ban, P. Baranov, E. Barrelet, R. Barschke, W. Bartel, M. Barth, U. Bassler, H.P. Beck, H.-J. Behrend, A. Belousov, Ch. Berger, G. Bernardi, R. Bernet, G. Bertrand-Coremans, M. Besançon, R. Beyer, P. Biddulph, P. Bispham, J.C. Bizot, V. Blobel, K. Borras, F. Botterweck, V. Boudry, A. Braemer, W. Braunschweig, V. Brisson, D. Bruncko, C. Brune, R. Buchholz, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, M.J. Burton, G. Buschhorn, A.J. Campbell, T. Carli, M. Charlet, D. Clarke, A.B. Clegg, B. Clerbaux, S. Cocks, J.G. Contreras, C. Cormack, J.A. Coughlan, A. Courau, M.-C. Cousinou, G. Cozzika, L. Criegee, D.G. Cussans, J. Cvach, S. Dagoret, J.B. Dainton, W.D. Dau, K. Daum, M. David, C.L. Davis, B. Delcourt, A. De Roeck, E.A. De Wolf, M. Dirkmann, P. Dixon, P. Di Nezza, W. Dlugosz, C. Dollfus, J.D. Dowell, H.B. Dreis, A. Droutskoi, D. Düllmann, O. Dünger, H. Duhm, J. Ebert, T.R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, R.J. Ellison, E. Elsen, M. Erdmann, W. Erdmann, E. Evrard, A.B. Fahr, L. Favart, A. Fedotov, D. Feeken, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, B. Fominykh, J. Formánek, J.M. Foster, G. Franke, E. Fretwurst, E. Gabathuler, K. Gabathuler, F. Gaede, J. Garvey, J. Gayler, M. Gebauer, A. Gellrich, H. Genzel, R. Gerhards, A. Glazov, U. Goerlach, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, K. Golec-Biernat, B. Gonzalez-Pineiro, I. Gorelov, C. Grab, H. Grässler, R. Grässler, T. Greenshaw, R.K. Griffiths, G. Grindhammer, A. Gruber, C. Gruber, J. Haack, T. Hadig, D. Haidt, L. Hajduk, M. Hampel, W.J. Haynes, G. Heinzelmann, R.C.W. Henderson, H. Henschel, I. Herynek, M.F. Hess, W. Hildesheim, K.H. Hiller, C.D. Hilton, J. Hladký, K.C. Hoeger, M. Höppner, D. Hoffmann, T. Holtom, R. Horisberger, V.L. Hudgson, M. Hütte, H. Hufnagel, M. Ibbotson, H. Itterbeck, A. Jacholkowska, C. Jacobsson, M. Jaffre, J. Janoth, T. Jansen, L. Jönsson, K. Johannsen, D.P. Johnson, L. Johnson, H. Jung, P.I.P. Kalmus, M. Kander, D. Kant, R. Kaschowitz, U. Kathage, J. Katzy, H.H. Kaufmann, O. Kaufmann, S. Kazarian, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, T. Köhler, J.H. Köhne, H. Kolanoski, F. Kole, S.D. Kolya, V. Korbel, M. Korn, P. Kostka, S.K. Kotelnikov, T. Krämerkämper, M.W. Krasny, H. Krehbiel, D. Krücker, U. Krüger, U. Krüner-Marquis, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, D. Lacour, B. Laforge, R. Lander, M.P.J. Landon, W. Lange, U. Langenegger, J.-F. Laporte, A. Lebedev, F. Lehner, C. Leverenz, S. Levonian, Ch. Ley, G. Lindström, M. Lindstroem, J. Link, F. Linsel, J. Lipinski, B. List, G. Lobo, H. Lohmander, J.W. Lomas, G.C. Lopez, V. Lubimov, D. Lüke, N. Magnussen, E. Malinovski, S. Mani, R. Maraček, P. Marage, J. Marks, R. Marshall, J. Martens, G. Martin, R. Martin, H.-U. Martyn, J. Martyniak, T. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, T. Merz, A. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, A. Migliori, S. Mikocki, D. Milstead, J. Moeck, F. Moreau, J.V. Morris, E. Mroczko, D. Müller, G. Müller, K. Müller, P. Murín, V. Nagovizin, R. Nahnhauer, B. Naroska, Th. Naumann, P.R. Newman, D. Newton, D. Neyret, H.K. Nguyen, T.C. Nicholls, F. Niebergall, C. Niebuhr, Ch. Niedzballa, H. Niggli, R. Nisius, G. Nowak, G.W. Noyes, M. Nyberg_Werther, M. Oakden, H. Oberlack, U. Obrock, J.E. Olsson, D. Ozerov, P. Palmen, E. Panaro, A. Panitch, C. Pascaud, G.D. Patel, H. Pawletta, E. Peppel, E. Perez, J.P. Phillips, A. Pieuchot, D. Pitzl, G. Pope, S. Prell, R. Prosi, K. Rabbertz, G. Rädel, F. Raupach, P. Reimer, S. Reinshagen, H. Rick, V. Riech, J. Riedlberger, F. Riepenhausen, S. Riess, E. Rizvi, S.M. Robertson, P. Robmann, H.E. Roloff, R. Roosen, K. Rosenbauer, A. Rostovtsev, F. Rouse, C. Royon, K. Rüter, S. Rusakov, K. Rybicki, N. Sahlmann, D.P.C. Sankey, P. Schacht, S. Schiek, S. Schleif, P. Schleper, W. von Schlippe, D. Schmidt, G. Schmidt, A. Schöning, V. Schröder, E. Schuhmann, B. Schwab, F. Sefkow, M. Seidel, R. Sell, A. Semenov, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I.O. Skillicorn, P. Smirnov, J.R. Smith, V. Solochenko, Y. Soloviev, A. Specka, J. Spiekermann, S. Spielman, H. Spitzer, F. Squinabol, R. Starosta, M. Steenbock, P. Steffen, R. Steinberg, H. Steiner, B. Stella, A. Stellberger, J. Stier, J. Stiewe, U. Stöβlein, K. Stolze, U. Straumann, W. Struczinski, J.P. Sutton, S. Tapprogge, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, J. Theissen, C. Thiebaux, G. Thompson, P. Truöl, J. Turnau, J. Tutas, P. Uelkes, A. Usik, S. Valkár, A. Valkárová, C. Vallée, D. Vandenplas, P. Van Esch, P. Van Mechelen, Y. Vazdik, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, M. Wagener, A. Walther, B. Waugh, G. Weber, M. Weber, D. Wegener, A. Wegner, T. Wengler, M. Werner, L.R. West, T. Wilksen, S. Willard, M. Winde, G.-G. Winter, C. Wittek, E. Wünsch, J. Žáček, D. Zarbock, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, K. Zuber, and M. zurNedden
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Proton, Meson, High Energy Physics::Phenomenology, Order (ring theory), Parton, HERA, Charm quark, High Energy Physics::Experiment, Rapidity, Nuclear Experiment
Abstract: At the electron-proton collider HERA the inclusive D-*+/- meson photoproduction cross section has been measured with the H1 detector in two different, but partly overlapping, kinematical regions. For the first, where [W-gamma p] approximate to 200 GeV and Q(2) < 0.01 GeV2, the result is sigma(gamma p --> c(c) over barX$) = (13.2 +/- 2.2(-1.7-4.8)(+2.1+9.9)) mu b. The second measurement for Q(2) < 4 GeV2 yields sigma(gamma p) --> c(c) over barX$) = (9.3 +/- 2.1(-1.8-3.2)(+1.9+6.9)) mu b at [W-gamma p] approximate to 142 GeV and sigma(gamma p --> c(c) over barX$) = (20.6 +/- 5.5(-3.9-7.2)(+4.3+15.4)) mu b at [W-gamma p] approximate to 230 GeV, respectively. The third error accounts for an additional uncertainty due to the proton and photon parton density parametrizations. Differential cross sections are presented as a function of the D-*+/- transverse momentum and rapidity. The results compare reasonably well with next-to-leading order QCD calculations. Evidence for diffractive photoproduction of charm quarks is presented.
Published: 1996

14. Measurement of the total photon proton cross section and its decomposition at 200 GeV centre of mass energy

Author: C. Cormack, G. G. Winter, C. Vallée, J. Martens, P. Steffen, R. D. Appuhn, F. Kole, K. Rüter, U. Stößlein, C. Niebuhr, J. H. Köhne, D. Zarbock, H. P. Wellisch, R. Nahnhauer, D. Goldner, Max Weber, E. Malinovski, E. Barrelet, David Cussans, P. Goritchev, B. Laforge, Y. Soloviev, T. Carli, M. Kuhlen, G. Grindhammer, Paul Newman, V. L. Hudgson, E. A. De Wolf, Ch. Berger, Karlheinz Meier, K. Rosenbauer, C. Wittek, G. Lindström, C. Gruber, Dusan Bruncko, K. Rybicki, D. Neyret, L. Büngener, H. Krehbiel, A. Pieuchot, T. Mavroidis, B. Naroska, F. Ferrarotto, M. Jaffre, J. E. Olsson, H. Genzel, A. Lebedev, M. Korn, S. Egli, Christoph Grab, G. Thompson, W. Bartel, I. Herynek, K. Daum, G. Knies, T. Greenshaw, P. Bispham, J. Haack, Stephen Maxfield, I. O. Skillicorn, H. B. Dreis, U. Bassler, M. Charlet, G. Buschhorn, G. Bertrand-Coremans, R. Starosta, D. Ozerov, D. Düllmann, Rosario Martín, R. J. Ellison, M. Rietz, D. Haidt, K. C. Hoeger, Murrough Landon, A. E. Wright, H. Itterbeck, Wolfgang Lange, P. Van Mechelen, B. Waugh, G. Weber, H. Henschel, F. W. Büsser, F. Zomer, U. Straumann, H. J. Behrend, J.C. Bizot, M. Goldberg, J. Stiewe, P. Van Esch, E. Evrard, Eram Rizvi, L. Del Buono, L. Criegee, Grzegorz Nowak, W. Braunschweig, C. Jacobsson, A. Gellrich, V. Riech, F. Sefkow, J. P. Sutton, Claus Kleinwort, V. Andreev, G. Heinzelmann, D. Kant, Kerstin Borras, A. Semenov, M. Fleischer, P. Ribarics, T. Jansen, R. Felst, J. Formánek, A. B. Clegg, Andrew Mehta, S. Schiek, S. Tapprogge, H. Spitzer, Armen Vartapetian, M. Hapke, R. Sell, Benno List, J. Gayler, I. R. Kenyon, S. Kazarian, G. Villet, Barbara Clerbaux, R. Kaschowitz, Pierre Marage, E. Mroczko, M. Gebauer, B. Delcourt, D. Vandenplas, H. Küster, F. Brasse, V. Korbel, W.D. Dau, D. Lüke, A. Wegner, N. Gogitidze, H. Rick, J. B. Dainton, U. Siewert, F. Lamarche, A. Rostovtsev, A. Droutskoi, G. Rädel, C. Leverenz, J. Garvey, O. Hamon, S. Levonian, J. Zsembery, J. M. Link, E. Panaro, J. Kurzhöfer, H. Ehrlichmann, E. Wünsch, V. Solochenko, M. Zimmer, A. M. Fomenko, J. D. Dowell, Dave Sankey, M. Wagener, Roland Horisberger, A. Valkárová, U. Kathage, Vincent Boudry, M. Hampel, B. Kuznik, A. Meyer, Ph. Huet, V. Brisson, Yves Sirois, Jean-Francois Laporte, V. Nagovizin, G. D. Patel, P. Loch, S. Riess, Ch. Pichler, K. Gabathuler, A. Buniatian, Jean-Arcady Meyer, D. Wegener, W.J. Haynes, R. Gerhards, M. J. Burton, J. Lipinski, R. Bernet, K. Flamm, G. Franke, Yong Ban, N. Magnussen, K. Johannsen, P. Verrecchia, J. Žáček, A. Courau, Christophe Royon, J. Feltesse, S. Eichenberger, G. Martin, David Schmidt, J. Bähr, S. Spielman, T. Köhler, M. W. Krasny, V. Schröder, S. Schleif, K. H. Hiller, R. C. W. Henderson, N. Sahlmann, H. H. Kaufmann, Eckhard Elsen, Wolfram Erdmann, E. Schuhmann, Winston Ko, S. Aid, P. I. P. Kalmus, J. V. Morris, G. Schmidt, C. Pascaud, V. Efremenko, P. Hill, F. Linsel, P.-O. Meyer, G. W. Noyes, Martin Erdmann, U. Obrock, Zhen Zhang, Guenter Eckerlin, André Schöning, S. Mani, A. Walther, P. Biddulph, Hermann Kolanoski, D. Clarke, H. E. Roloff, M. Forbush, S. Mikocki, J. Bán, J. Tutas, F. Niebergall, J. D. Burger, H. P. Beck, Stephen Burke, A. Braemer, D. Mercer, M. A. Jabiol, W. Zimmermann, Gianfranco Sciacca, J. Riedlberger, H. Hufnagel, J. W. Lomas, I. Sheviakov, D. Newton, V. Lubimov, R. Prosi, J. Ebert, S. Masson, Leif J. Jönsson, John A Coughlan, A. Usik, K. Stolze, M. Höppner, C. A. Meyer, S. Prell, P. Dixon, H. Lohmander, P. Lanius, A. Gruber, R. Buchholz, L. N. Shtarkov, U. Krüger, A. Migliori, Horst Oberlack, Markus Seidel, A. Glazov, V. Tchernyshov, G. Siegmon, H. U. Martyn, Matthias Klein, David Milstead, P. A. Smirnov, Ch. Ley, A. Panitch, C.D. Hilton, J.G. Contreras, Daniel Johnson, R. Beyer, S. Dagoret, P. Palmen, L. Goerlich, F. Moreau, J. Hladký, F. Lehner, J. Theissen, J. Duboc, B. Stella, D. Feeken, A. Jacholkowska, B. Gonzalez-Pineiro, K. Stephens, E. Peppel, M. Arpagaus, S. D. Kolya, M. Oakden, R. Marshall, Dirk Krücker, R. Roosen, J. Ferencei, V I. Shekelyan, A. Wagener, S. Reinshagen, J. Martyniak, K. Wacker, R. Steinberg, J. Spiekermann, R. L. Lander, Daniel Pitzl, Frank Raupach, S. M. Robertson, N. Wulff, B. Fominykh, P. Kasselmann, F. Charles, J. Katzy, H. K. Nguyen, I. V. Gorelov, K. Müller, R.K. Griffiths, R. Grässler, Ch. Coutures, W. Struczinski, U. Krüner-Marquis, G. Müller, M. F. Hess, Emmanuelle Perez, G. Lobo, P. Kostka, J. M. Foster, S. Bourov, Carl R. Brune, M. Barth, J. Turnau, K. Zuber, Eckhart Fretwurst, M. Steenbock, S. K. Kotelnikov, L. Hajduk, B. Andrieu, H. Meyer, S. Kermiche, W. Hildesheim, J. Cvach, Ch. Niedzballa, P. Di Nezza, Peter Robmann, S. Willard, M. Winde, P. Uelkes, Didier Lacour, M. Hütte, L. Johnson, G. Pope, Steve McMahon, P. Baranov, O. Dünger, F. Botterweck, Peter Schleper, T. Krämerkämper, R. Maraček, W. von Schlippe, Marc Besancon, A.S. Belousov, Sergey Rusakov, T. Merz, P. Truöl, H. Pawletta, R. Nisius, J. R. Smith, E. Eisenhandler, Th. Naumann, H. Duhm, E. Gabathuler, M. David, C.L. Davis, M. Flieser, J. Stier, J. Marks, Y. Vazdik, L.R. West, M. Nyberg-Werther, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, M. zurNedden, C. Kiesling, A. De Roeck, A. J. Campbell, T. Kurča, J. Janoth, Volker Blobel, R. Eichler, G. Cozzika, F. Eisele, C. Keuker, J.P. Phillips, Klaus Rabbertz, Stefan Valkar, Hannes Jung, Alexander Zhokin, B. Schwab, Pavel Murin, H. Grässler, M. Ibbotson, R. Barschke, Laurent Favart, C. Dollfus, F. Rouse, Ulrich Goerlach, T. C. Nicholls, Peter Schacht, G. C. Lopez, Gregorio Bernardi, Anton Babaev, C. Thiebaux, J. Strachota, and P. E. Reimer
Subjects: Nuclear physics, Physics, Elastic scattering, Particle physics, Cross section (physics), Photon, Physics and Astronomy (miscellaneous), Proton, Detector, High Energy Physics::Experiment, Center of mass, HERA, Dissociation (chemistry)
Abstract: We present a new measurement of the total photoproduction cross section performed with the H1 detector at HERA. For an average centre of mass energy of 200 GeV a value of σtotλp=165±2±11µb has been obtained. A detailed analysis of the data in adequate kinematic regions enabled a decomposition of the total cross section in its elastic, single diffractive dissociation and remaining non-diffractive parts, based on safe assumptions on the double diffractive dissociation contribution.
Published: 1995

15. On the problem of systems under the influence of imperfect instruments

Author: J. Formánek
Subjects: Set (abstract data type), Mathematical optimization, Theoretical computer science, law, General Physics and Astronomy, Experimental data, Imperfect, Polarizer, Mathematics, law.invention
Abstract: An algorithm for handling imperfect instruments is developed in the framework of quantum theory. As an illustration the problem of light passing through a set of imperfect polarizers is discussed. It is shown that the results obtained in this way are in agreement with experimental data.
Published: 1995

16. A search for heavy leptons at HERA

Author: Peter Robmann, S. Aid, P. E. Reimer, J. Duboc, B. Stella, G. Müller, E. M. Hanlon, Carl R. Brune, M. Barth, L. R. West, V. Korbel, K. Rüter, C. Niebuhr, R. D. Appuhn, H. Krehbiel, A. Gellrich, F. Lamarche, G. G. Winter, B. Gonzalez-Pineiro, Hermann Kolanoski, P. Steffen, D. Clarke, John A Coughlan, Horst Oberlack, K. Rosenbauer, M. Vecko, P. R. Newman, J. Riedlberger, D. Mercer, G. Buschhorn, S. M. Robertson, R. L. Lander, S. Levonian, S. Masson, M. Colombo, D. Goldner, Y. Soloviev, Mikhail Danilov, F. Charles, M. F. Hess, G. Villet, Pierre Marage, H. U. Martyn, Matthias Klein, G. Lindström, K. Stephens, E. Peppel, R. Roosen, C. Gruber, H. P. Wellisch, Max Weber, J. Turnau, T. Jansen, M. Steenbock, Murrough Landon, A. E. Wright, J. Martyniak, G. Thompson, E. Malinovski, M. Kuhlen, A. Courau, B. Andrieu, T. Carli, K. Flamm, Christophe Royon, R. Nisius, Benno List, A. Buniatian, K. C. Hoeger, C. A. Meyer, G. Grindhammer, G. Rädel, D. Lüke, E. Wünsch, B. Fominykh, P. I. P. Kalmus, M. Hampel, B. Kuznik, R. Kaschowitz, W. Hildesheim, Roland Horisberger, A. Valkárová, V. Riech, I. Sheviakov, D. Wegener, W.J. Haynes, Ph. Huet, S. Riess, A. Gruber, I. W. Walker, A. Braemer, K. Rybicki, H. Itterbeck, P. Van Mechelen, M. Hapke, D. Düllmann, H. Henschel, D. Kant, Ch. Pichler, P. Hill, J. Bán, H. J. Behrend, J.C. Bizot, Emmanuelle Perez, Christoph Grab, Kerstin Borras, A. Semenov, M. Goldberg, Peter Schacht, G. C. Lopez, O. Dünger, M. Korn, Winston Ko, Dave Sankey, G. Siegmon, Jean-Arcady Meyer, R. Nahnhauer, E. Barrelet, U. Krüger, F. Botterweck, K. Daum, C. Pascaud, P. Loch, R. Gerhards, G. Weber, U. Straumann, David Cussans, F. Moreau, J. Hladký, J. Martens, Daniel Johnson, Vincent Hedberg, Frank Raupach, G. Knies, Armen Vartapetian, J. D. Dowell, R. J. Ellison, R. Marshall, Guenter Eckerlin, G. Cozzika, Dirk Krücker, L. N. Shtarkov, G. D. Patel, André Schöning, F. Kole, S. Schiek, F. Eisele, A. Jacholkowska, P. Verrecchia, J. R. Smith, S. Dagoret, T. Köhler, M. W. Krasny, F. Linsel, A. Wegener, L. Goerlich, A. Panitch, Martin Erdmann, S. D. Kolya, E. A. De Wolf, Ch. Berger, V. Schröder, R. Herma, Karlheinz Meier, J. Heatherington, J. Haack, Stefan Valkar, U. Obrock, Wolfgang Lange, E. Eisenhandler, Gregorio Bernardi, F. Niebergall, K. H. Hiller, Eckhart Fretwurst, I. O. Skillicorn, H. H. Kaufmann, H. B. Dreis, Eckhard Elsen, F. Brasse, R. C. W. Henderson, D. Newton, J. Gayler, R. Maraček, Anton Babaev, V. Efremenko, J. Ferencei, Steve McMahon, C. Thiebaux, S. Eichenberger, V I. Shekelyan, A. Walther, N. Wulff, J. Tutas, J. D. Burger, R. Prosi, L. Büngener, Hannes Jung, W. von Schlippe, T. Merz, U. Krüner-Marquis, P. Lanius, C. Vallée, E. Sanchez, W. Zimmermann, I. Tichomirov, K. Wacker, R. Steinberg, I. Herynek, J. Baehr, N. Magnussen, S. Mikocki, David Schmidt, J. Strachota, Markus Seidel, V. Tchernyshov, S. Tapprogge, W.D. Dau, N. Sahlmann, E. Evrard, P. Kasselmann, E. Schuhmann, B. Schwab, K. Gabathuler, A. Lebedev, Grzegorz Nowak, S. Egli, J. B. Dainton, C. Jacobsson, P. Biddulph, M. Fleischer, K. Johanssen, M. A. Jabiol, Pavel Murin, H. Grässler, M. Rietz, D. Haidt, H. Hufnagel, J. Feltesse, U. Bassler, M. Ibbotson, G. Bertrand-Coremans, R. Starosta, Daniel Pitzl, J. Kurzhöfer, V. Nagovizin, U. Seehausen, R. Eichler, F. Sefkow, P. Ribarics, G. Heinzelmann, C.D. Hilton, L. Criegee, B. Delcourt, M. Höppner, R. Felst, J.G. Contreras, J. P. Kubenka, U. Kathage, U. Stösslein, H. Meyer, S. Kermiche, Laurent Favart, S. Prell, S. K. Kotelnikov, L. Hajduk, J. Formánek, M. Gebauer, C. Dollfus, J. Garvey, R. Buchholz, C. Leverenz, David Milstead, V. Brisson, G. W. Noyes, A. M. Fomenko, P. A. Smirnov, O. Hamon, H. Küster, H. Shooshtari, F. Rouse, P. Baranov, J. V. Morris, G. Schmidt, Didier Lacour, G. Pope, Peter Schleper, Ulrich Goerlach, Dusan Bruncko, M. Jaffre, J. E. Olsson, Marc Besancon, M. Forbush, A. Schwind, B. Naroska, F. Ferrarotto, A.S. Belousov, Sergey Rusakov, P. Truöl, H. Genzel, W. Bartel, T. Greenshaw, C. Schmidt, J.P. Phillips, J. P. Sutton, P. Di Nezza, Rosario Martín, P. Van Esch, Stephen Maxfield, A. Lindner, J. Janoth, A. Rostovtsev, Claus Kleinwort, J. Stiewe, F. W. Büsser, Volker Blobel, P. Goritchev, C. Keuker, W. Braunschweig, K. Gamerdinger, A. B. Clegg, R. Rylko, Andrew Mehta, N. Gogitidze, R. Sell, D. Neyret, T. Mavroidis, S. Kazarian, U. Siewert, F. Zomer, A. M. Goodall, L. Del Buono, V. Andreev, M. Zimmer, Vincent Boudry, Jean-Francois Laporte, H. Ehrlichmann, Yves Sirois, J. Lipinski, G. Franke, Zhen Zhang, J. Žáček, J. Ebert, J. M. Foster, S. Mani, H. P. Beck, Stephen Burke, A. Usik, M. Savitsky, K. Zuber, J. Cvach, H. Bergstein, Th. Naumann, H. Duhm, E. Gabathuler, E. Deffur, P. Kostka, Ch. Ley, M. David, S. Reinshagen, A. Wagener, H. K. Nguyen, I. V. Gorelov, K. Müller, R. Grässler, Ch. Coutures, W. Struczinski, M. Flieser, J. Stier, M. Arpagaus, Y. Vazdik, M. Nyberg-Werther, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, C. Kiesling, A. De Roeck, A. J. Campbell, Richard E. Taylor, T. Ahmed, Th. Wolff, T. Kurča, S. Willard, I. R. Kenyon, H. Spitzer, M. Winde, R. Bernet, P. Uelkes, L. Johnson, H. E. Roloff, Leif J. Jönsson, H. Lohmander, and D. Feeken
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, Astrophysics::High Energy Astrophysical Phenomena, Electron–positron annihilation, High Energy Physics::Phenomenology, HERA, Massless particle, Nuclear physics, Particle decay, W and Z bosons, High Energy Physics::Experiment, Neutrino, Lepton
Abstract: A search for direct production of new leptons in the mass range from 10 GeV up to 225 GeV is presented by the H1 experiment at HERA. The data were obtained during 1993 and correspond to an integrated luminosity of 528 nb −1 . The search includes heavy lepton decays to final states e ( ν ) γ and e ( ν ) W , e ( ν ) Z with the subsequent decay of the W and Z bosons into jets or lepton pairs. No evidence was found for the production of new massive electrons or neutrinos in any of the decay channels. Rejection limits for excited electrons and neutrinos are derived.
Published: 1994

17. Inclusive charged particle cross sections in photoproduction at HERA

Author: T. Jansen, T. Ahmed, Th. Wolff, I. Tichomirov, G. Rädel, L. Criegee, H. Hufnagel, S. Kermiche, J. Formánek, R. D. Appuhn, M. Hampel, Ph. Huet, C.D. Hilton, M. Gebauer, J. Garvey, Ch. Pichler, A. M. Fomenko, I. R. Kenyon, K. Stephens, E. Peppel, M. Gennis, R. C. W. Henderson, S. Levonian, E. Malinovski, M. Kuhlen, H. Spitzer, P. Baranov, J. Tutas, J. D. Burger, Peter Schleper, G. Grindhammer, C. Bourdarios, R. Prosi, A. Buniatian, Marc Besancon, A.S. Belousov, Sergey Rusakov, P. Truöl, G. Lindström, C. Gruber, M. Nyberg, J. Harjes, S. M. Robertson, Dusan Bruncko, K. Flamm, D. Wegener, W.J. Haynes, A. Mavroidis, P. Goritchev, S. K. Kotelnikov, L. Hajduk, W. Flauger, D. Pitzl, R. Roosen, Mikhail Danilov, D. Lewin, Grzegorz Nowak, J. Martyniak, C. Jacobsson, B. Fominykh, Emmanuel Monnier, Eckhart Fretwurst, Fabian Zomer, B. Naroska, F. Ferrarotto, K. Gamerdinger, T. Köhler, M. W. Krasny, H. Genzel, J. Martens, P. I. P. Kalmus, Michel Devel, J. M. Foster, V. Efremenko, Peter Loch, D. Kant, P. Dingus, W. von Schlippe, K. Johannsen, Kerstin Borras, Didier Lacour, T. Merz, R. J. Ellison, G. Cozzika, J. Hladký, A. Braemer, T. Greenshaw, G. Siegmon, J. Feltesse, J. Ebert, F. Eisele, S. Mikocki, C. A. Meyer, J.P. Phillips, W. Pilgram, Christophe Royon, A. Semenov, K. C. Hoeger, J. Žáček, Steve McMahon, U. Kathage, M. Savitsky, A. Gruber, Peter Schacht, G. C. Lopez, J. Haack, H. Bergstein, Th. Naumann, F. Moreau, J. D. Dowell, A. Jacholkowska, Rosario Martín, J. Ferencei, Leith Godfrey, W. Schmitz, V. Brisson, S. Aid, F. Charles, R. Taylor, P. Van Esch, H. Greif, P. Robmann, P. Fuhrmann, N. Magnussen, M. Goldberg, Max Klein, V. Boudry, H. Duhm, E. Vogel, Gregorio Bernardi, C. Niebuhr, Anton Babaev, M. Rudowicz, J. Marks, S. D. Kolya, S. Mani, L. N. Shtarkov, C. Thiebaux, J. Strachota, Hannes Jung, Mario David, Claus Kleinwort, F. Brasse, J. Turnau, J. Cvach, L. Goerlich, A. Drescher, I. Abt, T. P. Yiou, Stephen Burke, L. R. West, U. Bassler, I.F. Fensome, Winston Ko, E. Gabathuler, E. Deffur, D. Feeken, D. Goldner, P. Kostka, Leif J. Jönsson, Guenter Eckerlin, R. Vick, R. Nisius, André Schöning, C. Vallée, M. Steenbock, A. Lindner, S. J. Maxfiedl, Y. Soloviev, I. Sheviakov, A. Usik, E. Barrelet, A. M. Goodall, Volker Blobel, Ch. Berger, R. Eichler, C. Keuker, H. Lohmander, P. A. Smirnov, U. Krüger, E. Evrard, W. Hildesheim, P. R. Newman, B. Andrieu, A. Gellrich, V. Riech, Karlheinz Meier, P. Ribarics, V. Andreev, G. Villet, R. Felst, Pierre Marage, L. Büngener, D. Mercer, F. Lamarche, B. Schwab, M. Eberle, W. Lange, S. Willard, Roland Bernet, J. R. Smith, J. E. Olsson, W. Bartel, I. W. Walker, R. Herma, Hermann Kolanoski, S. Dagoret, Pavel Murin, H. Grässler, J. Moreels, K. Rybicki, D. Clarke, A. Courau, M. Ibbotson, M. Vecko, T. R. Ebert, John A Coughlan, M. Winde, A. Leuschner, Christoph Grab, L. Johnson, H. Ehrlichmann, E. Eisenhandler, M. Hapke, S. Masson, R. Langkau, Horst Oberlack, F. W. Büsser, W. Braunschweig, A. Fedotov, Günter Flügge, B. Delcourt, R. Sell, S. Kazarian, U. Siewert, A. B. Clegg, Andrew Mehta, N. Gogitidze, Laurent Favart, C. Dollfus, S. Reinshagen, U. Stösslein, V I. Shekelyan, R. Haydar, F. Kole, N. Sahlmann, C. Kiesling, Armen Vartapetian, E. Schuhmann, A. De Roeck, P. C. Bosetti, C. Leverenz, K. Wacker, R. Steinberg, B. Stella, A. Rostovtsev, M. Arpagaus, P. Biddulph, R. Ebbinghaus, M. Zimmer, J. Lipinski, Jean-Francois Laporte, Ulrich Goerlach, L. Urban, G. Franke, M. A. Jabiol, B. Kuznik, T. Kurča, R. L. Lander, M. Ruffer, K. Rosenbauer, M. Flieser, S. Orenstein, G. Bertrand-Coremans, H. Bärwolff, S. Eichenberger, Frank Raupach, J. Stier, R. Kaschowitz, Y. Vazdik, Y. Sirois, Jean-Arcady Meyer, M. Jaffré, H. Meyer, N. Wulff, A. Valkárová, P. Kasselmann, G. Thompson, A. Wegner, M. Colombo, M. Fleischer, S. Riess, H. Ziaeepour, W.D. Dau, J. B. Dainton, J. Kurzhöfer, V. Nagovizin, D. Düllmann, Hans Peter Beck, R. Gerhards, P. Hill, A. W. E. Dann, J. P. Kubenka, H. Henschel, J. Bán, Ch. Ley, U. Seehausen, H. J. Behrend, J.C. Bizot, D. Lüers, Murrough Landon, N. Huot, G. W. Noyes, P. Verrecchia, A. E. Wright, K. Müller, P. E. Reimer, H. Shooshtari, V. Schröder, J. Riedlberger, H. H. Kaufmann, Eckhard Elsen, D. Neyret, Nicolas Ellis, Alan Campbell, E. M. Hanlon, H. Itterbeck, S. Peters, H. K. Nguyen, I. V. Gorelov, O. Hamon, G. G. Winter, R. Grässler, Ch. Coutures, W. Struczinski, Vincent Hedberg, G. Knies, P. Steffen, I. O. Skillicorn, H. B. Dreis, H. P. Wellisch, T. Carli, V. Korbel, F. Linsel, J. Heatherington, D. Newton, P. Lanius, V. Tchernyshov, M. Korn, G. Weber, U. Straumann, H. U. Martyn, F. Ould-Saada, M. Höppner, S. Prell, S. A. Murray, J. Chyla, Martin Erdmann, U. Obrock, F. Niebergall, J. Duboc, C. Schmidt, J. P. Sutton, P. Di Nezza, U. Braun, K. Rauschnabel, E. Binder, H.T. Phillips, M. Schulz, J. Gayler, E. Sanchez, L. Del Buono, O. Dünger, R. Marshall, Dirk Krücker, H. Krehbiel, G. Buschhorn, I. Herynek, L.A. Womersley, A. Walther, W. Zimmermann, J. V. Morris, M. Forbush, A. Schwind, C. Pascaud, A. Lebedev, S. Egli, M. Rietz, D. Haidt, G. Heinzelmann, S. Valkar, H. Küster, D. Lüke, C. Zeitnitz, Dave Sankey, G. D. Patel, W. Scobel, D.P. Johnson, and David Schmidt
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Wire chamber, Particle physics, Elementary particle, HERA, Charged particle, Nuclear physics, Particle mass, Pseudorapidity, Transverse momentum, High Energy Physics::Experiment, Nuclear Experiment
Abstract: Cross sections are presented for the inclusive production of charged particles measured in electron-proton collisions at low Q 2 with the H1 detector at HERA. The transverse momentum distribution extends up to 8 GeV/ c . Its shape is found to be harder than that observed in p p collisions at comparable centre-of-mass energies √S γp ≈ √S p p ≈ 200 GeV , and also harder than in γp collisions at lower energies √ S γp ≈ 18 GeV. Results from quantum chromodynamics (QCD) calculations agree with the measured transverse momentum and pseudorapidity cross sections.
Published: 1994

18. First measurement of the charged current cross section at HERA

Author: T. Ahmed, V. Andreev, B. Andrieu, R.-D. Appuhn, M. Arpagaus, A. Babaev, J. Bán, P. Baranov, E. Barrelet, W. Bartel, M. Barth, U. Bassler, H.P. Beck, H.-J. Behrend, A. Belousov, Ch. Berger, H. Bergstein, G. Bernardi, R. Bernet, G. Bertrand-Coremans, M. Besançon, P. Biddulph, J.C. Bizot, V. Blobel, K. Borras, V. Boudry, A. Braemer, F. Brasse, W. Braunschweig, V. Brisson, D. Bruncko, C. Brune, L. Büngener, J. Bürger, F.W. Büsser, A. Buniatian, S. Burke, G. Buschhorn, A.J. Campbell, T. Carli, F. Charles, D. Clarke, A.B. Clegg, M. Colombo, J.A. Coughlan, A. Courau, Ch. Coutures, G. Cozzika, L. Criegee, D.G. Cussans, J. Cvach, S. Dagoret, J.B. Dainton, M. Danilov, A.W.E. Dann, W.D. Dau, K. Daum, M. David, E. Deffur, B. Delcourt, L. Del Buono, A. De Roeck, E. De Wolf, C. Dollfus, J.D. Dowell, H.B. Dreis, J. Duboc, D. Düllmann, O. Dünger, H. Duhm, J. Ebert, T.R. Ebert, G. Eckerlin, V. Efremenko, S. Egli, H. Ehrlichmann, S. Eichenberger, R. Eichler, F. Eisele, E. Eisenhandler, R.J. Ellison, E. Elsen, M. Erdmann, E. Evrard, L. Favart, A. Fedotov, D. Feeken, R. Felst, J. Feltesse, J. Ferencei, F. Ferrarotto, K. Flamm, W. Flauger, M. Fleischer, M. Flieser, G. Flügge, A. Fomenko, B. Fominykh, M. Forbush, J. Formánek, J.M. Foster, G. Franke, E. Fretwurst, E. Gabathuler, K. Gamerdinger, J. Garvey, J. Gayler, M. Gebauer, A. Gellrich, H. Genzel, R. Gerhards, U. Goerlach, L. Goerlich, N. Gogitidze, M. Goldberg, D. Goldner, A.M. Goodall, I. Gorelov, P. Goritchev, C. Grab, H. Grässler, R. Grässler, T. Greenshaw, G. Grindhammer, C. Gruber, J. Haack, D. Haidt, L. Hajduk, O. Hamon, M. Hampel, E.M. Hanlon, M. Hapke, W.J. Haynes, J. Heatherington, V. Hedberg, G. Heinzelmann, R.C.W. Henderson, H. Henschel, R. Herma, I. Herynek, W. Hildesheim, P. Hill, C.D. Hilton, J. Hladký, K.C. Hoeger, M. Höppner, Ph. Huet, H. Hufnagel, M. Ibbotson, H. Itterbeck, M.-A. Jabiol, A. Jacholkowska, C. Jacobsson, M. Jaffre, J. Janoth, T. Jansen, L. Jönsson, K. Johannsen, D.P. Johnson, L. Johnson, H. Jung, P.I.P. Kalmus, D. Kant, S. Kazarian, R. Kaschowitz, P. Kasselmann, U. Kathage, H.H. Kaufmann, I.R. Kenyon, S. Kermiche, C. Keuker, C. Kiesling, M. Klein, C. Kleinwort, G. Knies, W. Ko, T. Köhler, H. Kolanoski, F. Kole, S.D. Kolya, V. Korbel, M. Korn, P. Kostka, S.K. Kotelnikov, M.W. Krasny, H. Krehbiel, D. Krücker, U. Krüger, M. Krüner-Marquis, J.P. Kubenka, H. Küster, M. Kuhlen, T. Kurča, J. Kurzhöfer, B. Kuznik, D. Lacour, F. Lamarche, R. Lander, M.P.J. Landon, W. Lange, P. Lanius, J.F. Laporte, A. Lebedev, C. Leverenz, S. Levonian, Ch. Ley, A. Lindner, G. Lindström, F. Linsel, J. Lipinski, P. Loch, H. Lohmander, G.C. Lopez, D. Lüers, D. Lüke, N. Magnussen, E. Malinovski, S. Mani, P. Marage, R. Marshall, J. Martens, R. Martin, H.-U. Martyn, J. Martyniak, S. Masson, A. Mavroidis, S.J. Maxfield, S.J. McMahon, A. Mehta, K. Meier, D. Mercer, T. Merz, C.A. Meyer, H. Meyer, J. Meyer, S. Mikocki, V. Milone, D. Milstead, F. Moreau, J.V. Morris, G. Müller, P. Murín, V. Nagovizin, B. Naroska, Th. Naumann, G. Nawrath, P.R. Newman, D. Newton, D. Neyret, H.K. Nguyen, F. Niebergall, C. Niebuhr, R. Nisius, G. Nowak, G.W. Noyes, M. Nyberg-Werther, H. Oberlack, U. Obrock, J.E. Olsson, A. Panitch, C. Pascaud, G.D. Patel, E. Peppel, E. Perez, J.P. Phillips, Ch. Pichler, D. Pitzl, G. Pope, S. Prell, R. Prosi, G. Rädel, F. Raupach, P. Reimer, S. Reinshagen, P. Ribarics, V. Riech, J. Riedlberger, S. Riess, M. Rietz, S.M. Robertson, P. Robmann, R. Roosen, K. Rosenbauer, A. Rostovtsev, C. Royon, K. Rüter, M. Ruffer, S. Rusakov, K. Rybicki, N. Sahlmann, E. Sanchez, D.P.C. Sankey, M. Savitsky, P. Schacht, P. Schleper, W. von Schlippe, C. Schmidt, D. Schmidt, A. Schöning, V. Schröder, M. Schulz, B. Schwab, A. Schwind, U. Seehausen, F. Sefkow, R. Sell, A. Semenov, V. Shekelyan, I. Sheviakov, H. Shooshtari, L.N. Shtarkov, G. Siegmon, U. Siewert, Y. Sirois, I.O. Skillicorn, P. Smirnov, J.R. Smith, Y. Soloviev, H. Spitzer, P. Staroba, M. Steenbock, P. Steffen, R. Steinberg, B. Stella, K. Stephens, J. Stier, J. Stiewe, U. Stösslein, J. Strachota, U. Straumann, W. Struczinski, J.P. Sutton, S. Tapprogge, R.E. Taylor, V. Tchernyshov, C. Thiebaux, G. Thompson, I. Tichomirov, P. Truöl, J. Turnau, J. Tutas, A. Usik, S. Valkar, A. Valkarova, C. Vallée, P. Van Esch, P. Van Mechelen, A. Vartapetian, Y. Vazdik, M. Vecko, P. Verrecchia, G. Villet, K. Wacker, A. Wagener, I.W. Walker, A. Walther, G. Weber, M. Weber, D. Wegener, A. Wegner, H.P. Wellisch, L.R. West, S. Willard, M. Winde, G.-G. Winter, Th. Wolff, A.E. Wright, E. Wünsch, N. Wulff, T.P. Yiou, J. Žáček, Z. Zhang, M. Zimmer, W. Zimmermann, F. Zomer, and K. Zuber
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Propagator, Elementary particle, HERA, Nuclear physics, Cross section (physics), Transverse plane, High Energy Physics::Experiment, Nuclear Experiment, Charged current
Abstract: The cross section of the charged current process e − p → v e + hadrons is measured at HERA for transverse momenta of the hadron system larger than 25 GeV. The size of the cross section exhibits the W propagator.
Published: 1994

19. Scaling violations of the proton structure function F2 at small x

Author: F. Kole, B. Schwab, Petr Zavada, Pavel Murin, H. Grässler, M. Ibbotson, M. Schulz, D. Lüers, F. Charles, R. Taylor, N. Magnussen, Steve McMahon, Armen Vartapetian, Th. Wolff, Pavel Staroba, P. Verrecchia, H. Spitzer, Richard Nisius, Michel Devel, M. Colombo, E. Evrard, W.D. Dau, J. B. Dainton, Claire Bourdarios, Laurent Favart, C. Dollfus, J. Turnau, M. Steenbock, B. Andrieu, N. Sahlmann, V. Korbel, J. E. Olsson, W. Bartel, Stephen Maxfield, Kerstin Borras, C. Pascaud, V. Schröder, W. von Schlippe, H. H. Kaufmann, Eckhard Elsen, R. Marshall, Dirk Krücker, I. Tichomirov, Murrough Landon, A. E. Wright, G. Lindström, B. Delcourt, G. Bertrand-Coremans, J. Feltesse, Ulrich Goerlach, R. Kaschowitz, R. Ebbinghaus, A. B. Clegg, N. Gogitidze, F. W. Büsser, W. Braunschweig, K. C. Hoeger, Leif J. Jönsson, H. Hufnagel, Alexandre Lebedev, H. Lohmander, L. Criegee, A. Semenov, J. Riedlberger, M. Nyberg, S. Egli, M. Rietz, T. Merz, S. Kasarian, U. Stösslein, C. Leverenz, J. Žáček, Max Klein, L.A. Womersley, J. Formánek, M. A. Jabiol, V. Riech, R. Sell, A. Valkárová, S. Orenstein, J. Harjes, S. M. Robertson, S. Riess, G. Heinzelmann, Mario David, S. Kermiche, E. Barrelet, Tancredi Carli, I. R. Kenyon, S. Reinshagen, A. Walther, C.D. Hilton, Fabian Zomer, M. Hapke, F. Linsel, P. A. Smirnov, A. Lindner, L. N. Shtarkov, U. Bassler, Ch. Berger, Karlheinz Meier, J. Ebert, U. Siewert, F. Brasse, W. Zimmermann, Hans Peter Beck, H. Itterbeck, S. Peters, M. Zimmer, E. Malinovski, M. Kuhlen, Vincent Boudry, A. Buniatian, Mikhail Danilov, J. Heatherington, R. C. W. Henderson, I. F. Fensome, Volker Blobel, K. Stephens, E. Peppel, D. Newton, D. Lewin, L. Büngener, V. Milone, S. Eichenberger, G. Cozzika, D. Wegener, W.J. Haynes, Jean-Francois Laporte, Jean-Arcady Meyer, R. Eichler, C. Keuker, R. Roosen, H. Shooshtari, G. Grindhammer, J. Martyniak, R. Gerhards, A. Drescher, O. Hamon, M. Fleischer, Ch. Ley, Dave Sankey, D. Handschuh, I. Herynek, P. Lanius, Emmanuel Monnier, S. A. Murray, S. Levonian, H. Krehbiel, T. Köhler, M. W. Krasny, P. E. Reimer, B. Fominykh, E. M. Hanlon, V. Tchernyshov, Stefan Valkar, M. Arpagaus, J. Duboc, B. Stella, H. T. Phillips, H. Greif, P. Hill, J. Bán, P. Ribarics, C. Niebuhr, R. Felst, G. D. Patel, H. Meyer, Paul Newman, K. Flamm, A. Mavroidis, V. Efremenko, Hannes Jung, G. Buschhorn, Daniel Pitzl, G. G. Winter, S. Mani, R. M. Martin, J. Tutas, J. D. Burger, M. Rudowicz, M. Eberle, L. Smolik, U. Seehausen, Grzegorz Nowak, Eckhart Fretwurst, M. Korn, P. I. P. Kalmus, David Schmidt, Vincent Hedberg, G. Knies, S. Mikocki, P. Steffen, C. Vallée, P. Biddulph, I. Abt, Stephen Burke, Martin Erdmann, R. Prosi, U. Obrock, F. Niebergall, Nicolas Ellis, G. Weber, U. Straumann, J. V. Morris, H. P. Wellisch, A. Wegner, T. Ahmed, K. Johannsen, J. R. Smith, R. Herma, Christophe Royon, A. Usik, R. D. Appuhn, E. Eisenhandler, Y. Soloviev, T. Kurca, S. K. Kotelnikov, L. Hajduk, M. Jaffré, H. K. Nguyen, I. V. Gorelov, K. Müller, P. Dingus, A. M. Goodall, M. Forbush, P. Baranov, H. Ziaeepour, R. Grässler, Ch. Coutures, W. Struczinski, Peter Schacht, G. C. Lopez, C. A. Meyer, J. Kurzhöfer, A. Schwind, V. Nagovizin, M. Vecko, Peter Schleper, J. Haack, A. W. E. Dann, C. Zeitnitz, Rudolf Langkau, H. Küster, W. Schmitz, A. Gellrich, V. Andreev, M. Rüffer, J. M. Foster, R. J. Ellison, F. Lamarche, M. Savitsky, I. O. Skillicorn, H. B. Dreis, I. W. Walker, K. Rybicki, J. P. Kubenka, Marc Besancon, P. Fuhrmann, A.S. Belousov, D. Düllmann, H. U. Martyn, Sergey Rusakov, P. Truöl, Peter Loch, Winston Ko, Didier Lacour, Guenter Eckerlin, Daniel Johnson, E. Vogel, G. W. Noyes, M. Gennis, H. Henschel, H. J. Behrend, J.C. Bizot, M. Goldberg, Hermann Kolanoski, D. Clarke, John A Coughlan, W. Pilgram, J. Cvach, Gregorio Bernardi, Anton Babaev, C. Thiebaux, Horst Oberlack, A. Leuschner, Christoph Grab, L. Goerlich, R. Vick, André Schöning, I. Sheviakov, G. Villet, Pierre Marage, Yves Sirois, Frank Raupach, J. Strachota, U. Krüger, A. Courau, Roland Bernet, J. Lipinski, K. Gamerdinger, S. Dagoret, J. Garvey, J. Hladký, F. Eisele, G. Franke, V I. Shekelyan, A. M. Fomenko, J. D. Dowell, R. Haydar, P. C. Bosetti, G. Siegmon, Wolfgang Scobel, Ankita Mehta, N. Wulff, K. Wacker, R. Steinberg, E. J. Sanchez, N. Huot, P. Goritchev, Dusan Bruncko, P. Kasselmann, B. Naroska, F. Ferrarotto, H. Genzel, T. Greenshaw, D. Neyret, J.P. Phillips, D. Feeken, W. Hildesheim, R. L. Lander, J. Ferencei, H. Bärwolff, P. Van Esch, J. Marks, A. Rostovtsev, Claus Kleinwort, F. Moreau, S. Willard, A. Jacholkowska, M. Winde, S. D. Kolya, L. Johnson, T. Jansen, G. Rädel, B. Kuznik, Ph. Huet, Ch. Pichler, C. Gruber, W. Flauger, K. Rauschnabel, Wolfgang Lange, E. Binder, J. Gayler, G. Thompson, S. Prell, C. Jacobsson, U. Kathage, C. Schmidt, J. P. Sutton, U. Braun, H. Bergstein, Peter Robmann, Th. Naumann, L. Del Buono, A. Bischoff, H. Duhm, E. Gabathuler, E. Deffur, O. Dünger, P. Kostka, J. Moreels, T. R. Ebert, A. Fedotov, Günter Flügge, T. P. Yiou, C. Kiesling, A. De Roeck, A. J. Campbell, Farid Ould-Saada, Leith Godfrey, L. Urban, M. Flieser, D. Mercer, J. Stier, Y. Vazdik, L.R. West, S. Masson, J. Martens, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and H1
Subjects: Physics, Nuclear physics, Nuclear and High Energy Physics, Particle physics, Distribution function, Proton, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Range (statistics), Perturbative QCD, HERA, Event (particle physics), Scaling, Gluon
Abstract: An analysis is presented of scaling violations of the proton structure function F 2 ( x , Q 2 ) measured with the H1 detector at HERA in the range of Bjorken x values between x = 3 × 10 −4 and 10 −2 for four-momentum transfers Q > 2 larger than 8.7 GeV 2 . The structure function F 2 ( x , Q 2 ) is observed to rise linearly with ln Q 2 . Under the assumption that the observed scaling violations at small x ⩽ 0.01 are described correctly by perturbative QCD, an estimate is obtained of the gluon distribution function G ( x , Q 0 2 ) at Q 2 2 = 20 GeV 2 .
Published: 1994

20. The H 1 liquid argon calorimeter system

Author: W. Pimpl, J. Bán, P. E. Reimer, C. Gregory, M. Urban, M. Savitsky, Alan Campbell, D. Bruncko, J. Turnau, B. Andrieu, M. Rietz, U. Buchner, E. Malinovski, G. Grindhammer, D. Wegener, A. Coville, H. T. Blume, N. Sahlmann, L. Del Buono, J. Huber, R. Bernier, Emmanuel Monnier, H. P. Wellisch, M. Lemler, B. Montes, G. Falley, L. Gosset, A. Busata, L. Hajduk, R. Haydar, Michel Devel, M. A. Jabiol, B. Delcourt, O. Hamon, V. Efremenko, Yves Sirois, M. Colombo, Peter Schacht, H. Küster, W. Schmitz, M. Kolander, F. Charles, K. Rybicki, S. Mikocki, G. Cozzika, Peter Loch, I. Sheviakov, A. Valkarova, Gregorio Bernardi, H. Novakova, G. Buschhorn, Stefan Valkar, M. Turiot, G. Villet, P. Goritchev, P. Dingus, J. Cvach, J. Strachota, J. Feltesse, R. Bernard, A. Nepeipivo, K. Gamerdinger, M. Korn, F. Descamps, Hannes Jung, R. Fang, V. Rusinov, M. Kubantsev, C. Vallée, P. Nayman, L. Goerlich, W. Fröchtenicht, H. Brettel, P. A. Smirnov, J. Koll, U. Dretzler, M. Jaffré, U. Bassler, H. Laskus, F. Eisele, G. Ernst, J. Formánek, J. David, S. Peters, P. Pailler, T. Carli, U. Obrock, P. Štefan, A. Babayev, J. C. Biasci, H. K. Nguyen, M. Goldberg, R. Grässler, Ch. Coutures, J. Spalek, C. Pascaud, A. Drescher, J. Ferencei, Mario David, V I. Shekelyan, Pavel Murin, P. Závada, J. Godlewski, K. Djidi, N. Huot, W. Hildesheim, J.Y. Parey, J. Kurzhöfer, M. Drewe, V. Nagovizin, V. Korbel, H. Schmücker, J. P. Pharabod, J. Marks, F. Martin, A. Jacholkowska, M. Kuhlen, J. Staeck, M. Seman, I. Giesgen, A. DeRoeck, Vincent Boudry, Jean-Francois Laporte, V. Tschernyshov, Grzegorz Nowak, A. Reboux, E. Banas, W. Krasny, J. Ẑáček, K. Rauschnabel, E. Binder, J. Gayler, P. Weissbach, J. Fent, J. P. Kubenka, R. Chase, V. Brisson, W. Flauger, Kerstin Borras, J.F. Huppert, J. Hladký, E. Barrelet, F. Brasse, P. Hartz, P. Sawallisch, I. Herynek, D. Bederede, P. Perrodo, W. Tribanek, Ch. Zeitnitz, F. Dupont, J. Stier, K. Thiele, Z.Y. Feng, Günter Flügge, T. P. Yiou, C. Kiesling, L. Urban, T. Kurča, F. Blouzon, M. Haguenauer, P. Ribarics, D. Imbault, D. Breton, Marc Besancon, Sergey Rusakov, Mikhail Danilov, H. Steiner, J. Martyniak, J. Jeanjean, I. Tichomirov, P. Staroba, Hermann Kolanoski, Horst Oberlack, F. Zomer, J. Duboc, H. Greif, M. Rudowicz, U. Lenhardt, T. Merz, M. Vecko, D. Lüers, and P. Verrecchia
Subjects: Cryostat, Physics, Nuclear and High Energy Physics, Large Hadron Collider, Calorimeter (particle physics), Physics::Instrumentation and Detectors, Detector, DESY, Cryogenics, HERA, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider, Instrumentation
Abstract: The liquid argon calorimeter of the H 1 detector presently taking data at the HERA ep collider at DESY, Hamburg, is described. The main physics requirements and the most salient design features relevant to this calorimeter are given. The aim to have smooth and hermetic calorimetric coverage over the polar angular range 4° ≤ θ ≤ 154° is achieved by a single liquid argon cryostat containing calorimeter stacks structured in wheels and octants for easy handling. The absorber materials used are lead in the electromagnetic part and stainless steel in the hadronic part. The read-out system is pipelined to reduce the dead time induced by the high trigger rate expected at the HERA collider where consecutive bunches are separated in time by 96 ns. The main elements of the calorimeter, such as the cryostat, with its associated cryogenics, the stack modules, the read-out, calibration and trigger electronics as well as the data acquisition system are described. Performance results from data taken in calibration runs with full size H 1 calorimeter stacks at a CERN test beam, as well as results from data collected with the complete H 1 detector using cosmic rays during the initial phase of ep operations are presented. The observed energy resolutions and linearities are well in agreement with the requirements.
Published: 1993

21. Measurement of the proton structure function F2 (x, Q2) in the low-x region at HERA

Author: Steve McMahon, C. A. Meyer, G. Siegmon, A. Drescher, P. Fuhrmann, F. Moreau, J. Hladký, J. D. Dowell, A. Jacholkowska, A. Lebedev, S. Egli, G. Villet, L. Goerlich, S. D. Kolya, M. Rietz, D. Haidt, Pierre Marage, G. Heinzelmann, A. Courau, H. Küster, A. Usik, N. Magnussen, R. C. W. Henderson, N. Sahlmann, P. Biddulph, M. Colombo, J. V. Morris, Frank Raupach, R. Ebbinghaus, M. A. Jabiol, A. E. Wright, J. Tutas, J. D. Burger, N. Wulff, R. Prosi, P. Kasselmann, D. P. C. Sankey, U. Bassler, Daniel Pitzl, M. Forbush, V. Milone, A. Schwind, M. Jaffre, J. E. Olsson, W. Bartel, H. Itterbeck, S. Peters, R. Felst, S. K. Kotelnikov, L. Hajduk, M. Eberle, F. W. Büsser, W. Braunschweig, R. Sell, C. Zeitnitz, V. Korbel, K. C. Hoeger, T. Jansen, U. Siewert, M. Zimmer, Vincent Boudry, Jean-Francois Laporte, G. D. Patel, H. Meyer, Peter Loch, W. Scobel, Vincent Hedberg, G. Rädel, G. Knies, B. Kuznik, Ph. Huet, W. Pilgram, D. Lüers, Ch. Pichler, D.P. Johnson, David Schmidt, J. Haack, I. O. Skillicorn, H. B. Dreis, Ch. Ley, Peter Schacht, G. C. Lopez, W. Schmitz, V. Riech, M. Hapke, R. Bernet, Pavel Staroba, Kerstin Borras, E. Vogel, Gregorio Bernardi, Anton Babaev, G. Cozzika, F. Eisele, A. Buniatian, D. Wegener, W. von Schlippe, A. Semenov, T. Merz, J. Turnau, J. Strachota, W.J. Haynes, P. Verrecchia, I.F. Fensome, P. Goritchev, Stefan Valkar, M. Steenbock, A. Lindner, Volker Blobel, C. Keuker, R. Roosen, Emmanuel Monnier, V. Schröder, S. Kasarian, K. Gamerdinger, T. Köhler, D. Neyret, S. Levonian, K. Rauschnabel, Wolfgang Lange, B. Andrieu, Hannes Jung, K. Johannsen, B. Schwab, C. Vallée, E. Malinovski, Pavel Murin, D. Mercer, H. Grässler, J. Riedlberger, H. K. Nguyen, F. Brasse, E. Binder, M. Ibbotson, H. H. Kaufmann, Eckhard Elsen, Leif J. Jönsson, M. Nyberg, J. Harjes, Christophe Royon, P. Baranov, Laurent Favart, C. Dollfus, I. V. Gorelov, K. Müller, J. Gayler, Jean-Arcady Meyer, V. Efremenko, Mario David, F. Linsel, Peter Schleper, Ulrich Goerlach, R. Grässler, Ch. Coutures, W. Struczinski, J. Heatherington, J. M. Foster, R. Kaschowitz, S. M. Robertson, R. Gerhards, P. Závada, E. Evrard, M. Savitsky, E. Sanchez, S. Riess, M. Kuhlen, H. Lohmander, G. Grindhammer, S. Mikocki, K. Flamm, A. Mavroidis, D. Newton, L. N. Shtarkov, Leith Godfrey, Marc Besancon, J. Cvach, F. Zomer, A. M. Goodall, L. Del Buono, Winston Ko, B. Delcourt, A.S. Belousov, Sergey Rusakov, U. Stösslein, P. Lanius, C. Pascaud, I. W. Walker, K. Rybicki, J. Duboc, B. Stella, S. Kermiche, P. I. P. Kalmus, P. Hill, J. Bán, P. Truöl, Mikhail Danilov, Peter Robmann, D. Lewin, H. Greif, L. Criegee, Stephen Maxfield, C. Leverenz, V. Tchernyshov, A. Leuschner, Christoph Grab, O. Hamon, Nicolas Ellis, Guenter Eckerlin, J. Martyniak, E. Barrelet, R. Vick, M. Vecko, A. B. Clegg, Andrew Mehta, T. Ahmed, J. Formánek, A. Bischoff, Th. Wolff, M. Rudowicz, Yves Sirois, H. Shooshtari, I. R. Kenyon, I. Abt, M. Korn, J. Lipinski, R. Nisius, B. Fominykh, G. Franke, J. Žáček, S. Masson, R. Langkau, M. Ruffer, Armen Vartapetian, G. Thompson, S. Orenstein, G. Weber, U. Straumann, H. Spitzer, Ch. Berger, O. Dünger, J. Ebert, R. J. Ellison, L.A. Womersley, R. L. Lander, H. Bärwolff, A. Gellrich, F. Lamarche, S. Mani, R. D. Appuhn, D. Düllmann, J. R. Smith, H. P. Beck, Eckhart Fretwurst, S. Eichenberger, H. Henschel, Stephen Burke, R. Herma, I. Tichomirov, E. Eisenhandler, L. Büngener, J. Martens, H. J. Behrend, J.C. Bizot, M. Goldberg, M. Gennis, M. Fleischer, Hermann Kolanoski, D. Clarke, Michel Devel, John A Coughlan, K. Meier, Horst Oberlack, A. Walther, S. Prell, F. Kole, G. Bertrand-Coremans, G. Lindström, C. Gruber, W. Flauger, L. Smolik, U. Seehausen, H. Hufnagel, W. Zimmermann, I. Herynek, J. Garvey, A. M. Fomenko, A. Wegner, C.D. Hilton, P. Kotska, Grzegorz Nowak, C. Jacobsson, C. Schmidt, J. P. Sutton, U. Braun, N. Huot, H. Ziaeepour, H.T. Phillips, M. Schulz, J. Kurzhöfer, V. Nagovizin, W.D. Dau, A. W. E. Dann, J. B. Dainton, R. Eichler, M. W. Krasny, Claire Bourdarios, R. Marshall, Dirk Krücker, U. Kathage, D. Handschuh, K. Stephens, E. Peppel, H. Krehbiel, V. Brisson, J. P. Kubenka, C. Thiebaux, G. Buschhorn, G. W. Noyes, P. Dingus, J. Feltesse, Max Klein, P. A. Smirnov, F. Charles, I. Sheviakov, U. Krüger, J. Stier, J. Marks, S. Dagoret, Y. Vazdik, H. Bergstein, Th. Naumann, Vladimir Andreev, H. U. Martyn, H. Duhm, V I. Shekelyan, R. Haydar, P. C. Bosetti, E. Gabathuler, E. Deffur, K. Wacker, P. Ribarics, R. Steinberg, Y. Soloviev, J. Moreels, T. R. Ebert, Dusan Bruncko, P. E. Reimer, Alan Campbell, E. M. Hanlon, G. G. Winter, A. Fedotov, Günter Flügge, T. P. Yiou, P. Steffen, B. Naroska, F. Ferrarotto, H. P. Wellisch, C. Kiesling, A. De Roeck, T. Carli, Richard E. Taylor, F. Ould-Saada, H. Genzel, L. Urban, T. Kurča, T. Greenshaw, J.P. Phillips, Rosario Martín, J. Ferencei, P. Van Esch, A. Rostovtsev, Claus Kleinwort, S. Reinshagen, M. Arpagaus, W. Hildesheim, S. Willard, M. Winde, L. Johnson, D. Feeken, A. Valkarova, S. A. Murray, Martin Erdmann, U. Obrock, F. Niebergall, and M. P. J. Landon
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Range (particle radiation), Luminosity (scattering theory), Neutral current, Proton, Detector, Elementary particle, HERA, Atomic physics, Deep inelastic scattering
Abstract: A measurement of the proton structure function F2 (x, Q2) is presented with about 1000 neutral current deep inelastic scattering events for Bjorken x in the range x ⋍ 10−2 – 10−4 and Q2 > 5 GeV2. The measurement is based on an integrated luminosity of 22.5 nb−1 recorded by the H1 detector in the first year of HERA operation. The structure function F2 (x, Q2) shows a significant rise with decreasing x.
Published: 1993

22. Measurement of inclusive jet cross sections in photoproduction at HERA

Author: J. Duboc, B. Stella, Kerstin Borras, A. Lebedev, A. Semenov, M. Rietz, C. Vallée, M. Colombo, R. D. Appuhn, Vladimir Andreev, H. Greif, M. Gennis, N. Magnussen, G. Lindström, C. Gruber, W. Flauger, H. Bergstein, S. D. Kolya, D. Haidt, Th. Naumann, F. Brasse, R. C. W. Henderson, M. Rudowicz, N. Sahlmann, Murrough Landon, A. E. Wright, H. Duhm, J-P. Meyer, P. Biddulph, R. Ebbinghaus, W. von Schlippe, T. Merz, M. Ibbotson, E. Deffur, K. C. Hoeger, G. Heinzelmann, M. A. Jabiol, J. Tutas, J. D. Burger, F. Ould-Saada, R. Prosi, F. Zomer, A. M. Goodall, R. Bernet, P. Kostka, A. Buniatian, M. Jaffre, P. Ribarics, D. Wegener, W.J. Haynes, U. Bassler, M. Fleischer, Leith Godfrey, C. Kiesling, H. Itterbeck, S. Peters, V. Riech, Armen Vartapetian, J. E. Olsson, W. Bartel, E. Malinovski, M. Kuhlen, Y. Soloviev, L. Del Buono, V. Milone, S. Kasarian, S. A. Murray, H. Küster, J. Feltesse, M. Hapke, K. Rauschnabel, Wolfgang Lange, Leif J. Jönsson, R. Roosen, Emmanuel Monnier, T. Köhler, M. W. Krasny, Mario David, E. Binder, J. V. Morris, V. Efremenko, H. Lohmander, G. Siegmon, Martin Erdmann, R. Felst, U. Obrock, Grzegorz Nowak, C. Jacobsson, M. Eberle, M. Korn, L.A. Womersley, R. Nisius, F. W. Büsser, M. Arpagaus, W. Braunschweig, F. Niebergall, V. Korbel, J. Stier, K. Rybicki, Vincent Hedberg, G. Knies, L. Smolik, U. Seehausen, K. Johannsen, S. Mikocki, M. Forbush, Max Klein, R. L. Lander, R. J. Ellison, J. Marks, R. Gerhards, J. M. Foster, H. Bärwolff, Y. Vazdik, J. Riedlberger, A. Schwind, R. Sell, E. Sanchez, G. Weber, U. Straumann, M. Nyberg, T. Ahmed, Th. Wolff, P. E. Reimer, Christophe Royon, F. Moreau, L. N. Shtarkov, J. D. Dowell, C. A. Meyer, M. Vecko, J. R. Smith, I. R. Kenyon, Alan Campbell, J. Harjes, J. Moreels, J. Haack, E. M. Hanlon, S. M. Robertson, R. Herma, W. Hildesheim, H. U. Martyn, U. Siewert, I. O. Skillicorn, T. R. Ebert, A. Walther, A. Jacholkowska, H. Spitzer, D. Mercer, G. G. Winter, M. Savitsky, H. B. Dreis, P. A. Smirnov, K. Meier, J. Turnau, A. Fedotov, B. Naroska, Winston Ko, Yves Sirois, P. Fuhrmann, G. Grindhammer, F. Linsel, Günter Flügge, T. P. Yiou, M. Zimmer, S. Willard, P. Baranov, C. Zeitnitz, S. Eichenberger, Dave Sankey, P. Steffen, J. Martens, C. Pascaud, Tim Greenshaw, Jean-Francois Laporte, W. Zimmermann, M. Steenbock, A. De Roeck, Richard E. Taylor, A. Valkarova, J. Heatherington, F. Kole, Guenter Eckerlin, L. Goerlich, Peter Robmann, Peter Schleper, Michel Devel, S. Kermiche, L. Urban, S. Masson, L. Criegee, H. Henschel, T. Kurča, J. Lipinski, R. Vick, D. Newton, G. D. Patel, G. Franke, B. Andrieu, H. Meyer, W. Scobel, A. Bischoff, D.P. Johnson, A. Gellrich, H. P. Wellisch, H. Shooshtari, M. Winde, S. Rusakov, J. Formánek, L. Johnson, F. Lamarche, R. Kaschowitz, J. Cvach, P. Lanius, T. Carli, R. Langkau, T. Jansen, P. Goritchev, V. Tchernyshov, S. Riess, S. Egli, Frank Raupach, Marc Besancon, W.D. Dau, U. Kathage, J. B. Dainton, O. Dünger, K. Gamerdinger, A.S. Belousov, P. Hill, Hermann Kolanoski, D. Clarke, G. Rädel, H.T. Phillips, M. Schulz, B. Kuznik, J. Bán, John A Coughlan, D. Neyret, Claire Bourdarios, J.C. Phillips, K. Stephens, E. Peppel, J. Gayler, P. Truöl, Horst Oberlack, N. Wulff, J. Garvey, Mikhail Danilov, I. Abt, E. Gabathuler, Nicolas Ellis, Ph. Huet, D. Lewin, Stephen Maxfield, Ch. Pichler, J. Žáček, A. M. Fomenko, I. W. Walker, E. Eisenhandler, P. Kasselmann, R. Marshall, S. Prell, A. Leuschner, Christoph Grab, Dirk Krücker, A. B. Clegg, Andrew Mehta, D. Handschuh, H. Krehbiel, J. Martyniak, D. Feeken, G. Buschhorn, S. Levonian, S. Mani, B. Fominykh, N. Huot, D. Lüers, E. Barrelet, H. P. Beck, Stephen Burke, P. Dingus, Pavel Staroba, P. Verrecchia, M. Ruffer, V. Schröder, S. Orenstein, Ch. Berger, H. H. Kaufmann, K. Flamm, Eckhart Fretwurst, A. Mavroidis, L. Büngener, I. Tichomirov, C. Schmidt, J. P. Sutton, U. Braun, J. Ebert, P. I. P. Kalmus, I. Herynek, H. Hufnagel, A. Usik, Ch. Ley, C.D. Hilton, H. K. Nguyen, I. V. Gorelov, K. Müller, R. Grässler, Ch. Coutures, W. Struczinski, D. Schmidt, Peter Schacht, G. C. Lopez, W. Schmitz, E. Vogel, Gregorio Bernardi, V. Boudry, Anton Babaev, C. Thiebaux, J. Strachota, I.F. Fensome, A. Lindner, Volker Blobel, C. Keuker, Petr Zavada, Pavel Murin, V. Brisson, H. Grässler, Laurent Favart, C. Dollfus, F. Charles, I. Sheviakov, Ulrich Goerlach, U. Krüger, S. Dagoret, G. Cozzika, F. Eisele, J. Hladký, Stefan Valkar, Hannes Jung, V I. Shekelyan, R. Haydar, P. C. Bosetti, K. Wacker, R. Steinberg, E. Evrard, Dusan Bruncko, F. Ferrarotto, B. Delcourt, H. Genzel, U. Stösslein, C. Leverenz, O. Hamon, Rosario Martín, J. Ferencei, P. Van Esch, E. Elsen, A. Rostovtsev, Claus Kleinwort, G. Bertrand-Coremans, G. Thompson, A. Wegner, H. Ziaeepour, J. Kurzhöfer, V. Nagovizin, A. W. E. Dann, D. Düllmann, R. Eichler, J. P. Kubenka, G. W. Noyes, H. J. Behrend, J.C. Bizot, M. Goldberg, Steve McMahon, A. Drescher, G. Villet, Pierre Marage, A. Courau, Daniel Pitzl, S. K. Kotelnikov, L. Hajduk, Peter Loch, W. Pilgram, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Damoiseaux, Magali
Subjects: Nuclear and High Energy Physics, Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, FOS: Physical sciences, Elementary particle, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Perpendicular, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, Quantum chromodynamics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Detector, Perturbative QCD, HERA, Transverse plane, Pseudorapidity, High Energy Physics::Experiment, Underlying event
Abstract: Inclusive jet cross sections are measured in photoproduction at HERA using the H1 detector. The data sample of e+ p -> e+ + jet + X events in the kinematic range of photon virtualities Q^2 < 1 GeV^2 and photon-proton centre-of-mass energies 95 < W_gammap < 285 GeV represents an integrated luminosity of 24.1 pb^-1. Jets are defined using the inclusive k_T algorithm. Single- and multi-differential cross sections are measured as functions of jet transverse energy E_T^jet and pseudorapidity ��^jet in the domain 5 < E_T^jet < 75 GeV and -1 < ��^jet < 2.5. The cross sections are found to be in good agreement with next-to-leading order perturbative QCD calculations corrected for fragmentation and underlying event effects. The cross section differential in E_T^jet, which varies by six orders of magnitude over the measured range, is compared with similar distributions from p pbar colliders at equal and higher energies., 34 pages, 9 figures and 7 tables
Published: 1993

23. A search for leptoquarks, leptogluons and excited leptons in H1 at HERA

Author: C. Jacobsson, Leith Godfrey, M. Savitsky, Th. Wolff, G. Villet, Pierre Marage, I. R. Kenyon, E. Malinovski, M. Kuhlen, E. Evrard, H. Spitzer, G. Siegmon, C. Zeitnitz, Dave Sankey, G. D. Patel, H. Meyer, W. Scobel, L. Smolik, U. Seehausen, D.P. Johnson, R. Nisius, M. W. Krasny, J. Cvach, A. Courau, M. Colombo, Murrough Landon, J. V. Morris, Michel Devel, U. Kathage, J. Riedlberger, M. Vecko, T. Ahmed, M. Jaffre, W. Ko, J. E. Olsson, W. Bartel, C. A. Meyer, H. U. Martyn, B. Delcourt, M. Forbush, A. Schwind, M. Nyberg, J. Harjes, A. E. Wright, F. Moreau, J. Hladký, J. D. Dowell, S. M. Robertson, Kerstin Borras, U. Stösslein, J. Garvey, A. Semenov, P. Baranov, R. J. Ellison, R. Bernet, A. Jacholkowska, F. W. Büsser, P. Goritchev, E. Gabathuler, C. Leverenz, A. M. Fomenko, W. Braunschweig, P. Fuhrmann, A. Lebedev, F. Charles, M. Rietz, I. Sheviakov, D. Haidt, Peter Schleper, O. Hamon, K. Gamerdinger, R. Sell, R. Herma, I. O. Skillicorn, S. J. McMahon, D. Neyret, L. Goerlich, Andrew Mehta, J. Moreels, G. Heinzelmann, F. Brasse, Leif J. Jönsson, D. Handschuh, H. Itterbeck, S. Peters, U. Krüger, M. Fleischer, U. Siewert, J-P. Meyer, H. Küster, S. Masson, U. Bassler, G. Cozzika, Marc Besancon, E. Barrelet, N. Huot, S. A. Murray, M. Zimmer, W. von Schlippe, A.S. Belousov, F. Eisele, T. Merz, Daniel Pitzl, J. Žáček, S. Dagoret, H. Lohmander, V. Milone, H. Krehbiel, K. Johannsen, J.P. Phillips, Stefan Valkar, M. Ibbotson, T. Jansen, P. Truöl, I. Tichomirov, Christophe Royon, M. Ruffer, Ch. Berger, S. Orenstein, T. R. Ebert, F. Raupach, P. I. P. Kalmus, S. Kasarian, J. Ferencei, V I. Shekelyan, R. Haydar, P. C. Bosetti, G. Rädel, R. Felst, S. K. Kotelnikov, L. Hajduk, C. Trenkel, Hannes Jung, D. Gillespie, B. Kuznik, L. Büngener, Armen Vartapetian, C. Vallée, M. Eberle, Mario David, K. Wacker, R. Steinberg, P. Závada, Ph. Huet, B. Naroska, G. Buschborn, J. M. Foster, Vincent Hedberg, G. Knies, H. Hufnagel, J. Ebert, Hermann Kolanoski, I. Herynek, D. Clarke, M. Korn, R. D. Appuhn, Ch. Pichler, S. Mani, Pavel Murin, D. Mercer, V. Brisson, John A Coughlan, A. Fedotov, G. Nowak, T. P. Yiou, C. Pascaud, H. Grässler, Guenter Eckerlin, R. Vick, Peter Loch, Dusan Bruncko, Martin Erdmann, H. P. Beck, U. Obrock, Stephen Burke, H. Shooshtari, R. D. Martin, F. Niebergall, V. Korbel, N. Wulff, D. Lüers, J. Haack, F. Ferrarotto, W. Pilgram, H. Genzel, M. Gennis, S. Kermiche, Ch. Ley, J. Tutas, J. D. Burger, P. Kasselmann, G. Thompson, R. Prosi, J. Duboc, B. Stella, N. Magnussen, H. Greif, C.D. Hilton, H. B. Dreis, N. Sahlmann, Pavel Staroba, G. Lindström, C. Gruber, S. J. Maxfield, F. Zomer, A. M. Goodall, M. Rudowicz, W. Flauger, R. Langkau, D. Düllmann, P. Biddulph, L. Del Buono, R. Ebbinghaus, A. De Roeck, P. Van Esch, E. Elsen, I. Abt, Richard E. Taylor, H. J. Behrend, J.C. Bizot, A. Rostovtsev, Claus Kleinwort, M. Goldberg, M. A. Jabiol, S. Eichenberger, G. Bertrand-Coremans, H. K. Nguyen, I. V. Gorelov, K. Müller, Mikhail Danilov, D. Lewin, V. Schröder, A. Drescher, R. Grässler, Ch. Coutures, W. Struczinski, L. Urban, Laurent Favart, H. Henschel, A. Wegner, H. Oberlack, Yves Sirois, A. Valkarova, H. H. Kaufmann, S. Egli, G. Weber, T. Kurča, H. Bärwolff, H. Ziaeepour, J. Kurzhöfer, U. Straumann, V. Nagovizin, A. W. E. Dann, C. Dollfus, L. Criegee, S. Levonian, R. Eichler, J. Martyniak, J. P. Kubenka, A. Usik, J. Lipinski, G. Franke, C. Thiebaux, A. B. Clegg, Vladimir Andreev, B. Fominykh, L.A. Womersley, G. W. Noyes, G. Flügge, I. W. Walker, K. Flamm, P. Schacht, R. Kaschowitz, A. Leuschner, Christoph Grab, A. Mavroidis, S. Rusakov, J. Formánek, A. Walther, J. Stier, Ulrich Goerlach, J. Marks, Y. Vazdik, W. Zimmermann, A. Gellrich, P. Verrecchia, H. Bergstein, S. D. Kolya, Th. Naumann, F. Ould-Saada, H. Duhm, H.T. Phillips, M. Schulz, E. Deffur, I.F. Fensome, P. Kostka, J. Gayler, J. F. Laporte, P. Ribarics, Y. Soloviev, E. Fretwurst, Tim Greenshaw, A. Buniatian, D. Wegener, W.J. Haynes, A. Lindner, R. Roosen, R. Marshall, P. Hill, J. Bán, J. Heatherington, Emmanuel Monnier, T. Köhler, Volker Blobel, C. Keuker, D. Newton, V. Efremenko, S. Mikocki, Nicolas Ellis, D. Schmidt, M. Seman, P. Lanius, G. C. Lopez, W. Schmitz, V. Tchernyshov, E. Vogel, J. Turnau, V. Boudry, Anton Babaev, J. Strachota, M. Steenbock, B. Andrieu, G. Bernardi, D. Krücker, K. C. Hoeger, V. Riech, M. Hapke, C. Schmidt, J. P. Sutton, U. Braun, R. Gerhards, P. E. Reimer, Alan Campbell, E. M. Hanlon, G. G. Winter, K. Rauschnabel, Wolfgang Lange, G. Grindhammer, P. Steffen, E. Binder, H. P. Wellisch, T. Carli, E. Sanchez, Peter Robmann, A. Bischoff, W. Hildesheim, R. C. W. Henderson, J. R. Smith, S. Willard, O. Dünger, M. Winde, J. P. Pharabod, L. Johnson, C. Kiesling, M. Arpagaus, K. Rybicki, Richard Lander, K. Stephens, E. Peppel, E. Eisenhandler, P. Dingus, J. Martens, F. Kole, W.D. Dau, J. B. Dainton, Claire Bourdarios, J. Feltesse, Max Klein, D. Feeken, P. A. Smirnov, and K. Meier
Subjects: Quark, Physics, Nuclear and High Energy Physics, Particle physics, Branching fraction, High Energy Physics::Phenomenology, Elementary particle, HERA, Nuclear physics, Excited state, High Energy Physics::Experiment, Leptoquark, Neutrino, Lepton
Abstract: A direct search for new particles in the H1 experiment at HERA is presented for masses ranging from 35 GeV up to ∼ 250 GeV. The data sample of 24 nb −1 accumulated during the first year of operation was analysed for signatures of scalar and vector leptoquarks, leptogluons, excited electrons and excited neutrinos with flavours of the first generation. No evidence for the production of such particles was found in various possible decay channels. Rejection limits are derived.
Published: 1993

24. Observation of deep inelastic scattering at low x

Author: F. W. Büsser, W. Braunschweig, R. Sell, Grzegorz Nowak, G. Cozzika, C. Jacobsson, U. Siewert, M. Zimmer, E. Malinovski, Stefan Valkar, Vincent Boudry, Jean-Francois Laporte, M. Kuhlen, G. Grindhammer, Hannes Jung, C. Vallée, U. Kathage, P. E. Reimer, P. S. Flower, Alan Campbell, E. M. Hanlon, E. Eisenhandler, P. Staroba, G. G. Winter, Vincent Hedberg, J. Turnau, G. Knies, Leif J. Jönsson, M. Steenbock, G. Bertrand-Coremans, P. Steffen, Kerstin Borras, A. Semenov, G. Thompson, F. Brasse, P. Hartz, R. J. Ellison, B. Andrieu, E. Barrelet, H. Lohmander, A. Wegner, H. P. Wellisch, R. Hedgecock, A. Gellrich, R. Kaschowitz, U. Bassler, J. Moreels, D. Düllmann, Ch. Berger, Karlheinz Meier, C. Trenkel, H. Shooshtari, J. Haack, I. O. Skillicorn, P. Zavada, M. Vecko, K. C. Hoeger, D. Handschuh, I. W. Walker, H. Krehbiel, H. Ziaeepour, J. Kurzhöfer, V. Nagovizin, A. W. E. Dann, R. Eichler, J. P. Kubenka, A. Buniatian, D. Wegener, W.J. Haynes, I. Herynek, K. Rybicki, H. Henschel, M. Gennis, Ch. Ley, Hans Peter Beck, A. Leuschner, Christoph Grab, H. J. Behrend, J.C. Bizot, Frank Raupach, M. Goldberg, H. B. Dreis, M. Colombo, V. Riech, U. Berthon, V. Milone, W.D. Dau, E. Evrard, G. W. Noyes, G. Lindström, P. Hill, J. Bán, C. Gruber, R. Roosen, Emmanuel Monnier, W. Flauger, T. Ahmed, Th. Wolff, Murrough Landon, F. Charles, N. Wulff, A. E. Wright, V. Korbel, I. Sheviakov, M. Hapke, T. Köhler, M. W. Krasny, Armen Vartapetian, P. Kasselmann, H. U. Martyn, Matthias Klein, R. C. W. Henderson, Peter Schacht, G. C. Lopez, U. Krüger, Nicolas Ellis, H. Küster, W. Schmitz, B. Delcourt, R. Felst, G. Bushhorn, M. Eberle, I. R. Kenyon, V. Efremenko, F. Zomer, A. M. Goodall, U. Gensch, E. Vogel, Gregorio Bernardi, P. Baranov, Anton Babaev, C. Leverenz, J. Hladký, S. Eichenberger, H. K. Nguyen, O. Hamon, Jean-Arcady Meyer, H.T. Phillips, V I. Shekelyan, R. Haydar, P. C. Bosetti, H. Spitzer, M. Schulz, I. V. Gorelov, K. Müller, J. D. Burger, S. Peters, C. Schmidt, J. Strachota, U. Braun, S. Mikocki, Peter Schleper, K. Wacker, R. Steinberg, R. Grässler, Ch. Coutures, W. Struczinski, Stephen Maxfield, I.F. Fensome, Hermann Kolanoski, R. Prosi, T. R. Ebert, D. Clarke, R. Gerhards, R. Marshall, Dirk Krücker, A. Lindner, K. Rauschnabel, A. Usik, E. Binder, A. B. Clegg, Andrew Mehta, L. Del Buono, Marc Besancon, J. Gayler, Michel Devel, A.S. Belousov, Sergey Rusakov, S. Kermiche, V. Andreev, Volker Blobel, L.A. Womersley, F. Ould-Saada, E. Sanchez, Dusan Bruncko, R. L. Lander, H. Bärwolff, B. Naroska, F. Ferrarotto, P. Truöl, A. Walther, H. Genzel, I. Tichomirov, John A Coughlan, Horst Oberlack, W. Zimmermann, Peter Robmann, M. Ruffer, S. A. Murray, T. Greenshaw, N. Magnussen, S. Orenstein, A. Fedotov, Günter Flügge, T. P. Yiou, J.P. Phillips, Pavel Murin, V. Brisson, H. Grässler, Rosario Martín, J. Ferencei, L. Criegee, H. Hufnagel, P. Van Esch, J. Sacton, N. Sahlmann, A. Rostovtsev, Claus Kleinwort, J. Ebert, O. Dünger, M. Ibbotson, Martin Erdmann, U. Obrock, J. M. Foster, J. Formánek, P. Biddulph, B. Kuznik, M. A. Jabiol, F. Niebergall, Ph. Huet, C.D. Hilton, M. Savitsky, Ch. Pichler, W. von Schlippe, G. Siegmon, C. A. Meyer, T. Merz, J. Cvach, F. Moreau, P. Fuhrmann, J. D. Dowell, R. J. Thompson, Yves Sirois, A. Jacholkowska, Mikhail Danilov, S. D. Kolya, H. Steiner, L. Goerlich, A. Valkarova, D. Levin, J. Martyniak, C. Kiesling, Roland Bernet, S. Kasarian, B. Fominykh, J. Riedlberger, M. Nyberg, J. Harjes, S. M. Robertson, Eckhart Fretwurst, A. De Roeck, Mario David, G. Franke, Richard E. Taylor, R. Nisius, J. R. Smith, L. Urban, S. Mani, R. Herma, Stephen Burke, J. Duboc, B. Stella, T. Kurča, H. Greif, P. Goritchev, K. Gamerdinger, M. Rudowicz, J. Stier, Leith Godfrey, J. Marks, Y. Vazdik, H. Bergstein, C. Zeitnitz, Th. Naumann, Dave Sankey, H. Duhm, E. Gabathuler, E. Deffur, J.M. Morton, P. Kostka, G. D. Patel, P. Ribarics, Y. Soloviev, H. Meyer, W. Scobel, D.P. Johnson, David Schmidt, T. Carli, A. Lebedev, S. Egli, S. Masson, M. Rietz, D. Haidt, G. Heinzelmann, J.P. Sutton, J. V. Morris, D. Lüers, M. Forbush, A. Schwind, P. Verrecchia, V. Schröder, S. Levonian, H. H. Kaufmann, Eckhard Elsen, A. Mavroidis, P. I. P. Kalmus, Y. Feng, G. A. Beck, J. Garvey, A. M. Fomenko, N. Huot, W. Hildesheim, S. Willard, M. Winde, L. Johnson, M. Fleischer, K. Stephens, E. Peppel, M. Arpagaus, L. Smolik, U. Seehausen, K. Johannsen, J. Zacek, Christophe Royon, D. Gillespie, C. Pascaud, Guenter Eckerlin, R. Vick, J. Tutas, D. Feeken, R. Langkau, Laurent Favart, C. Dollfus, E. Ryseck, Ulrich Goerlach, M. Korn, G. Weber, U. Straumann, P. Dingus, J. Heatherington, D. Newton, Daniel Pitzl, M. Seman, P. Lanius, V. Tchernyshov, J. Martens, F. Kole, S. K. Kotelnikov, L. Hajduk, Peter Loch, J. B. Dainton, W. Pilgram, Claire Bourdarios, J. Feltesse, G. Villet, Pierre Marage, A. Courau, P. A. Smirnov, F. Eisele, Steve McMahon, A. Drescher, M. Jaffre, J. E. Olsson, and W. Bartel
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Luminosity (scattering theory), Proton, Neutral current, Scattering, High Energy Physics::Experiment, Elementary particle, Electron, HERA, Nuclear Experiment, Deep inelastic scattering
Abstract: Measurements of the scattered electron energy spectrum and the differential cross sections dσ/d log(x) and dσ/dQ2 for inclusive neutral current deep inelastic electron-proton scattering are presented. The data were obtained with the H1 detector at HERA during its first running period in which 26.7 GeV electrons collided with 820 GeV protons. The data correspond to an integrated luminosity of 1.3 nb−1 and allow the first studies of the structure of the proton at values of x down to 10−4 for Q2 > 5 GeV2.
Published: 1993

25. Total photoproduction cross section measurement at HERA energies

Author: J. D. Burger, M. Colombo, R. Prosi, I.F. Fensome, P. S. Flower, Murrough Landon, A. Lindner, F. Zomer, A. M. Goodall, A. E. Wright, Max Klein, J. M. Foster, Volker Blobel, C. Kiesling, L. Del Buono, M. Savitsky, Leif J. Jönsson, K. C. Hoeger, J. Hladký, D. Schmidt, M. Nyberg, S. Levonian, S. Peters, H. Lohmander, P. A. Smirnov, K. Meier, G. Cozzika, F. Eisele, P. Závada, V. Riech, Peter Schacht, G. C. Lopez, H. Küster, W. Schmitz, J. Cvach, M. Arpagaus, K. Rybicki, T. Ahmed, J.P. Phillips, E. Vogel, Gregorio Bernardi, V. Boudry, Anton Babaev, M. Hapke, K. Stephens, E. Peppel, R. Nisius, R. J. Thompson, Yves Sirois, A. Usik, J. Strachota, Hannes Jung, P. Baranov, B. Kuznik, N. Magnussen, W. Hildesheim, Roland Bernet, N. Sahlmann, Ph. Huet, E. Eisenhandler, Ch. Pichler, Peter Schleper, G. Villet, S. Egli, S. Willard, Pavel Murin, V. Brisson, E. Evrard, G. Franke, H. Grässler, H. Bergstein, J. Riedlberger, Th. Wolff, Stephen Maxfield, J. Harjes, S. M. Robertson, Vincent Hedberg, G. Knies, G. Siegmon, A. Buniatian, Pierre Marage, M. Jaffre, J. E. Olsson, W. Bartel, S. D. Kolya, Th. Naumann, J. Turnau, P. Biddulph, Laurent Favart, P. Dingus, A. B. Clegg, Andrew Mehta, I. R. Kenyon, R. Gerhards, J. Martens, H. Spitzer, D. Wegener, W.J. Haynes, M. Steenbock, F. W. Büsser, Marc Besancon, A.S. Belousov, W. Braunschweig, C. Dollfus, P. Truöl, R. Roosen, A. Courau, M. Winde, B. Delcourt, Emmanuel Monnier, R. Sell, L. Johnson, Ulrich Goerlach, M. Korn, M. A. Jabiol, P. Staroba, I. W. Walker, J. Haack, F. Moreau, J. D. Dowell, P. Goritchev, H. Duhm, U. Siewert, I. Tichomirov, Grazyna Nowak, M. Zimmer, R. Herma, P. E. Reimer, T. Köhler, B. Andrieu, C. Leverenz, A. Leuschner, Christoph Grab, G. Weber, M. Ruffer, Jean-Francois Laporte, S. Orenstein, Michel Devel, I. O. Skillicorn, H. B. Dreis, A. Jacholkowska, S. Mani, M. Vecko, K. Gamerdinger, E. Barrelet, O. Hamon, U. Straumann, Alan Campbell, E. M. Hanlon, J. B. Dainton, Claire Bourdarios, J. Zacek, J. Ebert, A. Gellrich, G. G. Winter, H. Hufnagel, V. Efremenko, E. Deffur, U. Berthon, Frank Raupach, Armen Vartapetian, G. Grindhammer, H. Shooshtari, C. A. Meyer, J. Heatherington, P. Steffen, H. U. Martyn, S. Mikocki, J.M. Morton, N. Wulff, P. Kostka, P. Ribarics, Ch. Ley, Hermann Kolanoski, D. Clarke, John A Coughlan, P. Kasselmann, P. Fuhrmann, C.D. Hilton, G. Thompson, Ch. Berger, Horst Oberlack, Y. Soloviev, H. P. Wellisch, J. Duboc, B. Stella, D. Feeken, H. Greif, S. Kermiche, L. Goerlich, M. Rudowicz, C. Trenkel, D. Düllmann, Mikhail Danilov, H. Steiner, S. Eichenberger, Stephen Burke, U. Bassler, R. L. Lander, H. Bärwolff, Daniel Pitzl, H. J. Behrend, J.C. Bizot, M. Goldberg, L. Criegee, R. Kaschowitz, D. Levin, J. Martyniak, H. K. Nguyen, I. V. Gorelov, K. Müller, V. Milone, W.D. Dau, A. Mavroidis, R. Grässler, Ch. Coutures, W. Struczinski, F. Kole, E. Ryseck, S. Rusakov, J. Formánek, B. Fominykh, Tim Greenshaw, S. K. Kotelnikov, L. Hajduk, R. Felst, P. I. P. Kalmus, M. Eberle, I. Herynek, J. Moreels, Eckhart Fretwurst, J-P. Meyer, Peter Loch, Hans Peter Beck, D. Newton, W. Pilgram, T. Merz, M. Ibbotson, C. Jacobsson, Steve McMahon, T. R. Ebert, M. Seman, S. Kasarian, P. Lanius, P. Hill, J. Bán, V. Tchernyshov, Mario David, A. Fedotov, A. Drescher, M. W. Krasny, Günter Flügge, T. P. Yiou, U. Kathage, E. Malinovski, M. Kuhlen, E. Gabathuler, Nicolas Ellis, Kerstin Borras, A. Semenov, F. Brasse, A. De Roeck, P. Hartz, R. J. Ellison, R. Hedgecock, C. Vallée, Richard E. Taylor, J.R. Smith, M. Gennis, G. Lindström, C. Gruber, W. Flauger, L. Urban, H. Henschel, T. Kurča, J. Stier, J. Marks, Y. Vazdik, G. Bertrand-Coremans, A. Wegner, H. Ziaeepour, J. Kurzhöfer, V. Nagovizin, A. W. E. Dann, R. Eichler, J. P. Kubenka, G. W. Noyes, Peter Robmann, W. von Schlippe, L. Smolik, U. Seehausen, K. Johannsen, F. Charles, Christophe Royon, I. Sheviakov, D. Gillespie, U. Krüger, B. Naroska, J. Sacton, C. Pascaud, Guenter Eckerlin, R. Vick, J. Tutas, V I. Shekelyan, R. Haydar, P. C. Bosetti, O. Dünger, R. Langkau, K. Wacker, R. Steinberg, G. A. Beck, J. Garvey, A. M. Fomenko, Dusan Bruncko, S. A. Murray, F. Ferrarotto, H. Genzel, N. Huot, K. Rauschnabel, E. Binder, Martin Erdmann, H. Obrock, Rosario Martín, F. Niebergall, V. Korbel, J. Ferencei, P. Van Esch, E. Elsen, E. Sanchez, A. Rostovtsev, Claus Kleinwort, L.A. Womersley, A. Valkarova, Vladimir Andreev, U. Gensch, A. Walther, F. Ould-Saada, C. Schmidt, U. Braun, W. Zimmermann, D. Handschuh, H. Krehbiel, D. Lüers, P. Verrecchia, G. Buschhorn, V. Schröder, H. H. Kaufmann, Leith Godfrey, H.T. Phillips, M. Schulz, J. Gayler, S. Masson, R. Marshall, Dirk Krücker, J. V. Morris, Y. Feng, M. Forbush, A. Schwind, A. Lebedev, M. Rietz, D. Haidt, G. Heinzelmann, M. Fleischer, J.P. Sutton, S. Valkar, C. Zeitnitz, Dave Sankey, G. D. Patel, H. Meyer, W. Scobel, D.P. Johnson, T. Carli, R. C. W. Henderson, and J. Feltesse
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Range (particle radiation), Photon, Hadron, Elementary particle, Electron, HERA, Nuclear physics, Cross section (physics), High Energy Physics::Experiment, Center of mass, Nuclear Experiment
Abstract: We present first results on the total photoproduction cross section measurement with the H1 detector at HERA. The data were extracted from low Q2 collisions of 26.7 GeV electrons with 820 GeV protons. The γp total cross section has been measured by two independent methods in the γp center of mass energy range from 90 to 290 GeV. For an average center of mass energy of 195 GeV a value of σtot (γp) = 159 ± 7 (stat.) ± 20 (syst.) μb was obtained.
Published: 1993

26. Energy Efficiency of High Temperature Tunnel Kilns

Author: J. Formánek and J. Mendheim
Subjects: Quality management, Natural materials, Kiln, media_common.quotation_subject, Civil engineering, Inorganic Chemistry, Competition (economics), Service (economics), Materials Chemistry, Ceramics and Composites, Environmental science, Tunnel kiln, Refractory (planetary science), media_common, Efficient energy use
Abstract: The tunnel kiln is the heart of many refractory plants. Over the last two decades both service and maintenance have increasingly been neglected. This regrettable lapse is an often short-sighted response to strong international competition and the price pressures of the market. This article addresses some principles and methods to optimize the energy efficiency of a tunnel kiln by common sense measures that observe the inherent limits of the technology.
Published: 2014

27. Hard scattering in γp interactions

Author: Alan Campbell, E. M. Hanlon, G. G. Winter, T. Ahmed, G. Grindhammer, P. Steffen, P. Baranov, M. Jaffre, J. E. Olsson, J-P. Meyer, Peter Schleper, H. P. Wellisch, W. Bartel, C. Schmidt, U. Braun, F. W. Büsser, Marc Besancon, W. Braunschweig, Stephen Maxfield, W. von Schlippe, R. Sell, A. DeRoeck, T. Merz, U. Siewert, M. Zimmer, A.S. Belousov, W. Pilgram, P. Truöl, A. Buniatian, Jean-Francois Laporte, M. Ibbotson, M. Rüffer, P. Loch, I. Tichomirov, D. Wegener, W.J. Haynes, A. B. Clegg, B. Kuznik, Emmanuel Monnier, C. A. Meyer, R. Kaschowitz, K. C. Hoeger, Andrew Mehta, D. Handschuh, H. Krehbiel, Leif J. Jönsson, H. Lohmander, S. Kasarian, Frank Raupach, S. A. Murray, T. Köhler, M. W. Krasny, S. M. Robertson, I. R. Kenyon, H. Spitzer, H. U. Martyn, V. Riech, Ph. Huet, K. Rauschnabel, N. Wulff, Armen Vartapetian, Ch. Pichler, E. Binder, J. Riedlberger, Michel Devel, G. Thompson, V. Efremenko, H. Hufnagel, P. Kasselmann, P. VanEsch, M. Hapke, G. Buschhorn, P. Fuhrmann, P. Hill, J. Bán, S. Mikocki, E. Sanchez, D. Düllmann, E. Vogel, L. Goerlich, R. C. W. Henderson, C.D. Hilton, Kerstin Borras, Vincent Hedberg, G. Knies, S. Orenstein, Nicolas Ellis, H. J. Behrend, J.C. Bizot, M. Goldberg, Martin Erdmann, W. Zimmermann, U. Obrock, J. Moreels, A. Semenov, R. Gerhards, E. Malinovski, J. Ference, H. Steiner, G. Bertrand-Coremans, F. Niebergall, V. Korbel, R. Roosen, N. Magnussen, D. Levin, J. Martyniak, M. Kuhlen, D. Lüers, G. Cozzika, F. Eisele, J.P. Phillips, R. Bernet, Stefan Valkar, L. Criegee, N. Sahlmann, A. Usik, J. Ebert, J. Haack, B. Fominykh, R. Nisius, R. Prosi, F. Brasse, R. L. Lander, Peter Robmann, H. Shooshtari, S. Egli, P. Hartz, I. O. Skillicorn, Hannes Jung, H. B. Dreis, T. R. Ebert, H. Bärwolff, E. Barrelet, S. Rusakov, J. Formánek, P. Biddulph, M. A. Jabiol, J. Zacek, S. Mani, U. Berthon, P. Staroba, A. Wegner, Vladimir Andreev, D. Gillespie, M. Danilov, Ch. Ley, P. Verrecchia, A. Fedotov, Ch. Berger, H. P. Beck, Hermann Kolanoski, D. Clarke, Eckhart Fretwurst, Günter Flügge, Stephen Burke, T. P. Yiou, J. Turnau, D. P. C. Sankey, I. F. Fensome, U. Bassler, R. J. Ellison, I. W. Walker, E. Evrard, O. Dünger, C. Trenkel, M. Steenbock, G. A. Beck, R. Hedgecock, A. Leuschner, Christoph Grab, F. Zomer, A. M. Goodall, H. Ziaeepour, J. Kurzhöfer, B. Andrieu, M. Colombo, V. Milone, Murrough Landon, V. Nagovizin, A. W. E. Dann, W.D. Dau, John A Coughlan, A. Babayev, J. Hladky, R. Eichler, I. Herynek, Horst Oberlack, G. Siegmon, B. Delcourt, A. Lebedev, L. Delbuono, Grzegorz Nowak, C. Vallée, H. K. Nguyen, I. V. Gorelov, K. Müller, M. Schulz, J. Gayler, R. Grässler, Ch. Coutures, W. Struczinski, A. E. Wright, V. Schröder, R. Felst, Richard E. Taylor, M. Eberle, J. M. Foster, C. Leverenz, J. Duboc, B. Stella, S. Eichenberger, H. Greif, F. Ould-Saada, O. Hamon, J. P. Kubenka, M. Savitsky, L. A. Womersley, P. Zavada, M. Vecko, L. Urban, R. J. Thompson, Yves Sirois, U. Gensch, M. Rietz, H. Henschel, F. Moreau, H. H. Kaufmann, J. D. Dowell, M. Rudowicz, J. Cvach, T. Kurča, J. R. Smith, R. Marshall, Dirk Krücker, S. Peters, A. Jacholkowska, R. Herma, U. Kathage, M. Gennis, D. Haidt, Dusan Bruncko, G. Franke, E. Gabathuler, F. Ferrarotto, H. Genzel, G. Lindström, C. Gruber, W. Flauger, Leith Godfrey, A. Walther, M. Nyberg, J. Harjes, P. Goritchev, A. Valkarova, Rosario Martín, K. Gamerdinger, E. Elsen, J. Marks, H. Bergstein, A. Rostovtsev, S. D. Kolya, Claus Kleinwort, Th. Naumann, H. Duhm, F. Charles, I. Sheviakov, E. Deffur, U. Krüger, J.M. Morton, P. Kostka, P. Ribarics, Y. Soloviev, M. David, V I. Shekelyan, R. Haydar, P. C. Bosetti, K. Wacker, R. Steinberg, G. Heinzelmann, U. Lenhardt, S. Levonian, M. Fleischer, S. Kermiche, J.P. Sutton, J. Bürger, A. Mavroidis, H. Küster, P. I. P. Kalmus, S. Masson, C. Zeitnitz, G. D. Patel, H. Meyer, W. Scobel, D.P. Johnson, A. Gellrich, M. Th. Wolff, T. Carli, J. V. Morris, M. Forbush, A. Schwind, L. Smolik, U. Seehausen, K. Johannsen, Christophe Royon, Y. Feng, B. Naroska, C. Pascaud, Guenter Eckerlin, R. Vick, J. Tutas, R. Langkau, H. Grässler, J. Garvey, A. M. Fomenko, N. Huot, J. Feltesse, D. Feeken, Max Klein, C. Kiesling, P. A. Smirnov, K. Meier, J. Martens, F. Kole, M. Arpagaus, K. Rybicki, J. B. Dainton, Claire Bourdarios, W. Hildesheim, K. Stephens, E. Peppel, H. T. Phillips, E. Eisenhandler, S. Willard, P. Dingus, J. Vasdik, M. Winde, L. Johnson, Steve McMahon, Tim Greenshaw, J. Heatherington, Pavel Murin, V. Brisson, D. Newton, M. Seman, G. W. Noyes, P. Lanius, V. Tchernyshov, Laurent Favart, A. Drescher, C. Dollfus, Ulrich Goerlach, E. Ryseck, M. Korn, Daniel Pitzl, G. Weber, U. Straumann, Volker Blobel, D. Schmidt, S. K. Kotelnikov, L. Hajduk, Peter Schacht, G. C. Lopez, W. Schmitz, C. Jacobson, Gregorio Bernardi, V. Boudry, J. Strachota, Jean Sacton, G. Villet, Pierre Marage, A. Courau, and P. E. Reimer
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, Particle physics, Photon, Scattering, Detector, HERA, Jet (particle physics), Spectral line, law.invention, Nuclear physics, law, High Energy Physics::Experiment, Collider
Abstract: We report on the investigation of the final state in interactions of quasi-real photons with protons. The data were taken with the H1 detector at the HERA ep collider. Evidence for hard interactions is seen in both single particle spectra and jet formation. The data can best be described by inclusion of resolved photon processess as predicted by QCD.
Published: 1992

28. On the problem of large radiative corrections in deep inelastic scattering

Author: J. Formánek
Subjects: Physics, Nuclear physics, High energy, Photon, Radiative transfer, General Physics and Astronomy, Electron, Particle collision, Inelastic scattering, Deep inelastic scattering, Computational physics
Abstract: A serious problem caused by large radiative corrections in deep inelastic scattering is indicated. A simple way how to avoid a principal difficulty related to it is suggested.
Published: 1991

29. Cinétique de FC et de (La) au cours d'un triathlon chez de jeunes triathlètes

Author: J. Formánek, J. Heller, J. Horcic, V. Bunc, and M. Belska
Abstract: Horcic J., Bunc V., Heller J., Belska M., Formánek J. Cinétique de FC et de (La) au cours d'un triathlon chez de jeunes triathlètes. In: Les Cahiers de l'INSEP, n°24, 1999. 2e Congrès international de triathlon de l’INSEP – 2nd INSEP international triathlon Congress pp. 353-355.
Published: 1999

30. Measurement of Dijet Cross Sections in ep Interactions with a Leading Neutron at HERA

Author: V. Andreev, Peter Robmann, Yves Sirois, Magnus Hansson, Dirk L. Hoffmann, J. C. Bizot, G. Franke, C. Risler, S. Backovic, E. Wünsch, J. Žáček, Hans-Christian Schultz-Coulon, R. Eichler, Dave Sankey, H. Lueders, F. Eisele, R. Oganezov, K. Sedlák, J. E. Olsson, W. Bartel, Fabian Zomer, Dusan Bruncko, C. Gwilliam, S. Levonian, B. Naroska, G. D. Patel, H. Meyer, Malte Hildebrandt, Laurent Schoeffel, S. Schmidt, Wolfram Erdmann, D.P. Johnson, A. M. Fomenko, Paul Laycock, E. Malinovski, Pierre Marage, A. Makankine, T. Greenshaw, G. Buschhorn, D. Ozerov, R. Weber, Emmanuel Sauvan, B. Vujicic, F. W. Büsser, N. Malden, G. Grindhammer, Erika Garutti, C. Gerlich, I. Foresti, G. Cozzika, N. Werner, Matthew Beckingham, Anna Kropivnitskaya, A. DeRoeck, R. Felst, P. Baranov, I. R. Kenyon, J. Ferencei, M. Martisikova, J. Naumann, L. Finke, Stefan Valkar, Natasa Raicevic, C. Wigmore, David South, F. Salvaire, D. Haidt, K. Daum, I. Glushkov, Wolfgang Lange, I. Milcewicz-Mika, J. Gayler, John A Coughlan, S. Ghazaryan, Vincent Boudry, F. Tomasz, Claus Kleinwort, A. N. Morozov, G. Knies, Leif J. Jönsson, Benoit Roland, K. Krüger, A. Nikiforov, D. Perez-Astudillo, M. Gregori, C. Goyon, Eram Rizvi, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, B. Stella, T. Klimkovich, Th. Naumann, M. Peez, G. Heinzelmann, V. Dodonov, Sergey Rusakov, P. Truöl, T. Frisson, I. Strauch, Philipp Fleischmann, R. Pöschl, R. Marshall, Zhen Zhang, S. Caron, Ricardo Lopez-Fernandez, Murrough Landon, S. Baumgartner, S. Gorbounov, O. Behnke, V. Chekelian, J. V. Morris, Andreas Meyer, D.K. Nikitin, E. Gabathuler, O. Henshaw, A. Bunyatyan, P. Van Mechelen, A. Usik, Klaus Desch, R. D. Heuer, G. Frising, A. Rimmer, C. Wissing, A. Knutsson, D. Wegener, Thorsten Lux, L. Janauschek, N. Van Remortel, V. Efremenko, S. Mikocki, M. Jacquet, E. E. Elsen, V. Lubimov, A. Dubak, M. Goettlich, K. Nankov, L. N. Shtarkov, J. Formánek, Stephen Maxfield, Sakar Osman, J. Stiewe, J. Scheins, I. Sheviakov, S. Schmitt, Adrian Perieanu, C. Veelken, Andrew Mehta, J. Bracinik, W.D. Dau, J. B. Dainton, N. Gogitidze, B. Portheault, Gerhard Brandt, Daniel Pitzl, B. Leißner, D. Meer, J. Zálešák, D. Traynor, V. Volchinski, V. Spaskov, Judith Katzy, F. Cassol-Brunner, R. Demirchyan, A. Asmone, J. Kückens, K. Wacker, L. Hajduk, Y.H. Fleming, Xavier Janssen, Max Klein, W. Yan, Georgios Tsipolitis, M. Fleischer, N. Loktionova, M. Urban, A. Hovhannisyan, K. Krastev, R. Plačakyte, I. Tsurin, E. Lobodzinska, Bogdan Povh, L. Lindfeld, F. Sefkow, M. Ismail, David Milstead, T. Kluge, Jan Kretzschmar, P. A. Smirnov, M. Wessels, Guenter Eckerlin, André Schöning, M. Ellerbrock, L. Goerlich, B. Delcourt, H. U. Martyn, G. Herrera, Bradley Cox, R. Wolf, B. Wessling, M.-O. Boenig, Matthias Ulrich Mozer, A. Fedotov, T. Laštovička, Nicolas Berger, P. D. Thompson, A. Vest, S. Ginzburgskaya, O. Behrendt, S. Vinokurova, A. Zhelezov, S. Baudrand, V. Yeganov, J. Zimmermann, J-P. Meyer, C. Kiesling, P. Kostka, E. Barrelet, E. Tzamariudaki, A. J. Campbell, D.P. Brown, J. Haller, L. Bystritskaya, J. Turnau, S. Mangano, Z. Rurikova, V. Jemanov, I. Tsakov, Roland Horisberger, A. Valkárová, H. Zohrabyan, Ch. Berger, F. Moreau, Karlheinz Meier, R. Roosen, Martin Karlsson, S. J. Aplin, K. Müller, C. Pascaud, Christian Schwanenberger, I. Herynek, L. Lytkin, Cristinel Diaconu, Y. Vazdik, D. Lüke, B. List, Stefania Xella, A. Aktas, S. Essenov, Katerina Lipka, J. Wagner, J. Cvach, V. Tchoulakov, R. Koutouev, A. Petrukhin, V. Brisson, A. D.R. Vargas Trevino, Anton Babaev, J. G. Contreras, A. Mohamed, P. Prideaux, Pavel Murin, M. Ibbotson, Karel Cerny, E. Perez, C. Schmitz, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, B. Olivier, Laurent Favart, T. Anthonis, R. Gerhards, P. E. Reimer, G. G. Winter, A. Glazov, Gero Flucke, M. Kapichine, M. Nozicka, E. A. DeWolf, S. Schätzel, A. Baghdasaryan, A. Rostovtsev, N. Keller, G. Nowak, G. Thompson, V. Lendermann, V. Schröder, H. Henschel, D. Utkin, J. Bähr, C. Niebuhr, S. Egli, Y. Soloviev, Paul Newman, F. P. Schilling, Christoph Grab, A.-I. Lucaci-Timoce, K. H. Hiller, R. C. W. Henderson, G. Weber, U. Straumann, A. Specka, V. Korbel, Alexandre Lebedev, C. Werner, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), H1, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and H1 Collaboration
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Nuclear Theory, FOS: Physical sciences, Virtual particle, Parton, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Pion, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Neutron, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Quantum chromodynamics, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Perturbative QCD, HERA, Deep inelastic scattering, 3. Good health, High Energy Physics::Experiment
Abstract: Measurements are reported of the production of dijet events with a leading neutron in ep interactions at HERA. Differential cross sections for photoproduction and deep inelastic scattering are presented as a function of several kinematic variables. Leading order QCD simulation programs are compared with the measurements. Models in which the real or virtual photon interacts with a parton of an exchanged pion are able to describe the data. Next-to-leading order perturbative QCD calculations based on pion exchange are found to be in good agreement with the measured cross sections. The fraction of leading neutron dijet events with respect to all dijet events is also determined. The dijet events with a leading neutron have a lower fraction of resolved photon processes than do the inclusive dijet data., 27 pages, 9 figures, 5 tables
Published: 2005

31. Search for leptoquark bosons in $ep$ collisions at HERA

Author: Stephen Maxfield, M. Kapichine, J. Stiewe, M. C. Cousinou, Andrew Mehta, N. Gogitidze, J. Cvach, Beate Heinemann, S. Hengstmann, M. Ellerbrock, Bradley Cox, Ç. İşsever, T. Wilksen, A. Beglarian, D. Kant, C. Pascaud, J. Zsembery, J. V. Morris, K. Müller, Christian Schwanenberger, V. Nagovizin, Guenter Eckerlin, André Schöning, A. Dubak, J. Rauschenberger, E. E. Woehrling, Pavel Murin, M. Taševský, H. Grässler, V. Panassik, M. Ibbotson, P.-O. Meyer, A. Bunyatyan, H. Mahlke-Krüger, Laurent Schoeffel, A. Koutov, B. Delcourt, R. Mohr, Y.H. Fleming, Grzegorz Nowak, R. Koutouev, J.E. Turney, C. Adloff, Murrough Landon, J. Kroseberg, Wolfram Erdmann, P. Baranov, Peter Schleper, C. Duprel, T. Kuhr, K. Gabathuler, P. D. Thompson, I. Sheviakov, E. Perez, Laurent Favart, T. Anthonis, H. Krehbiel, G. Buschhorn, D. Ozerov, R. Gerhards, N. Tobien, Paul Laycock, E. Malinovski, V. Tchernyshov, C. Risler, V. Korbel, P. Van Mechelen, K. Sedlák, Glenn J. White, F. Moreau, J. Hladký, B. Lobodzinski, P. E. Reimer, G. Grindhammer, D. Meer, C. Beier, J. Dingfelder, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, J. Kennedy, Georgios Tsipolitis, M. Fleischer, S. Ghazaryan, Daniel Johnson, L. Goerlich, R. Heremans, V. Brisson, D. Wegener, W.J. Haynes, Caroline Collard, Martin Erdmann, Y. Vazdik, N. Werner, G. G. Winter, O. Nix, S. D. Kolya, H. Meyer, R. Demirchyan, J. Scheins, K. H. Hiller, Roland Horisberger, S. Vassiliev, Xavier Janssen, P. Truöl, F. Niebergall, S. Tchetchelnitski, I. Malinovski, A. Valkárová, Barbara Clerbaux, Katja Krüger, V. Jemanov, V. Spaskov, R. C. W. Henderson, F. Zomer, P. Höting, Bogdan Povh, R. Pöschl, M. Schneider, M. Hildebrandt, M. Peez, C. Johnson, K. Daum, O. Karschnick, K. Wacker, M. Swart, V. Andreev, T. Laštovička, S. Wiesand, Max Weber, G. Knies, S. Caron, H. U. Martyn, J. D. Burger, V. Efremenko, Robert Lahmann, Martin Karlsson, B. Koblitz, E. Barrelet, C. Werner, W.D. Dau, J. B. Dainton, B. Leißner, M. Winde, Matthew Jones, Dusan Bruncko, B. List, M. Davidsson, R. Eichler, J. Garvey, W. Brückner, B. Naroska, Yves Sirois, S. Mikocki, N. Loktionova, Klaus Rabbertz, A. Fedotov, A. M. Fomenko, J. D. Dowell, Günter Flügge, C. Wissing, E. A. De Wolf, Ch. Berger, G. Radel, Karlheinz Meier, J. Gassner, S. Kermiche, V. Shekelyan, E. Lebailly, C. Gerlich, A. Specka, T. Schorner, D. Reyna, T. Greenshaw, G. Franke, J. Žáček, N. Keller, S. Schmidt, D.P. Brown, J. Haller, Paul Newman, R. Lemrani, C. Kiesling, D. South, R. Marshall, J.G. Contreras, L. Janauschek, V. Schröder, J. Boehme, A.C. Wyatt, Doris Eckstein, A. De Roeck, E. Tzamariudaki, A. J. Campbell, Eckhard Elsen, P. Dixon, Hans-Christian Schultz-Coulon, A. Loginov, P. Kostka, I. Foresti, G. Cozzika, A. Vichnevski, I. Potachnikova, I. Herynek, F. Eisele, E. Eisenhandler, J. Ferencei, J. Naumann, I. Tsurin, J. Turnau, J.P. Phillips, Stefan Valkar, J-P. Meyer, M. Jacquet, F. Keil, J. Zalesak, R. Roosen, T. Kurča, B. Waugh, G. Weber, M. zur Nedden, N. Delerue, U. Straumann, H.-B. Bröker, Hannes Jung, M. Lindstroem, T. Kluge, J. Martyniak, J. Marks, Alexander Zhokin, G. Nellen, Claus Kleinwort, P. Bate, Ewelina Lobodzinska, Anton Babaev, Th. Naumann, J. Formánek, J. Becker, C. Vallée, P. Kjellberg, L. Bystritskaya, B. Andrieu, E. Gabathuler, T. Benisch, G. Thompson, S. Hurling, R. Felst, H. Henschel, J.C. Bizot, M. Goldberg, Max Klein, David Milstead, P. A. Smirnov, M. Jaffre, J. E. Olsson, W. Bartel, V. Lendermann, F. W. Büsser, W. Braunschweig, I. R. Kenyon, T. Berndt, A. Burrage, Vincent Boudry, A. N. Morozov, Tigran Mkrtchyan, V. Lubimov, M.N. Mondragon, Leif J. Jönsson, R. Maraček, Markus Wobisch, L. N. Shtarkov, H. Spitzer, A. Küpper, S. Levonian, Y.R. Coppens, M. Werner, M. Hilgers, S. Udluft, A. Lebedev, F. Sefkow, Rainer Wallny, A. Astvatsatourov, D. Haidt, S. Ferron, Eram Rizvi, G. Heinzelmann, V. Dodonov, D. Clarke, John A Coughlan, D. Lüke, E. Wünsch, Dave Sankey, B. Stella, Stefan Schmitt, G. D. Patel, N. Malden, S. Lüders, David Schmidt, Zhen Zhang, T. Hadig, G. Herrera, V. Arkadov, Pierre Marage, D. Hoffmann, S. Mohrdieck, Andreas Meyer, A. Usik, O. Behnke, D. Lamb, L. Lytkin, Cristinel Diaconu, Daniel Pitzl, D. Traynor, F. Cassol-Brunner, S. K. Kotelnikov, L. Hajduk, T.C. Nicholls, M. Urban, Peter Robmann, Jun Cao, Wolfgang Lange, J. Gayler, R. Stamen, A. Rostovtsev, A. Droutskoi, B. Reisert, J. Bähr, C. Niebuhr, S. Egli, Y. Soloviev, F. P. Schilling, K. Rybicki, Christoph Grab, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, H1 Collaboration, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Neutral current, 010308 nuclear & particles physics, Scalar (mathematics), FOS: Physical sciences, HERA, Fermion, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Leptoquark, High Energy Physics::Experiment, 010306 general physics, Charged current, Boson
Abstract: A search for scalar and vector leptoquarks coupling to first generation fermions is performed using the e^+p and e^-p scattering data collected by the H1 experiment between 1994 and 2000. The data correspond to a total integrated luminosity of 117 pb^{-1}. No evidence for the direct or indirect production of such particles is found in data samples with a large transverse momentum final state electron or with large missing transverse momentum. Constraints on leptoquark models are established. For leptoquark couplings of electromagnetic strength, leptoquarks with masses up to 275-325 GeV are ruled out. These limits improve and supercede earlier H1 limits based on subsamples of the data used here., 15 pages, 1 table, 5 figures
Published: 2005

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

Author: C. Risler, C. Gwilliam, Anton Babaev, J. G. Contreras, A. Mohamed, P. Prideaux, M.-O. Boenig, R. Koutouev, A. Petrukhin, V. Jemanov, Zhen Zhang, Ricardo Lopez-Fernandez, S. Baumgartner, Andreas Meyer, A. Usik, H. U. Martyn, Matthias Klein, Nicolas Berger, G. Frising, D.P. Brown, J. Haller, Søren Schmidt, Dusan Bruncko, Georgios Tsipolitis, M. Fleischer, P. E. Reimer, Roland Horisberger, W. Yan, R. Plačakyte, A. Zhelezov, S. Baudrand, Adrian Perieanu, Michael R. Wessels, V. Brisson, S. Levonian, A. Valkárová, P. D. Thompson, B. Naroska, Judith Katzy, A. Asmone, Y.H. Fleming, V. Yeganov, G. G. Winter, M. Ismail, David Milstead, P. A. Smirnov, N. Loktionova, B. List, E. Lobodzinska, A. Aktas, Bogdan Povh, F. Sefkow, D. Wegener, S. Mangano, B. Portheault, F. Moreau, S. J. Aplin, J. Cvach, F. Eisele, T. Greenshaw, Erika Garutti, T. Frisson, I. Strauch, J. Kroseberg, Philipp Fleischmann, Pavel Murin, A. Hovhannisyan, Gerhard Brandt, V. Volchinski, A. Dubak, R. Oganezov, K. Sedlák, V. Korbel, Martin Karlsson, Daniel Pitzl, R. Demirchyan, F. Cassol-Brunner, D. Traynor, Murrough Landon, Wolfgang Lange, M. Ibbotson, I. Tsurin, Gero Flucke, M. Kapichine, M. Nozicka, Xavier Janssen, A. M. Fomenko, K. Krastev, J. Ferencei, M. Martisikova, J. Naumann, T. Laštovička, B. Stella, B. Wessling, C. Wissing, J. Gayler, S. Gorbounov, C. Gerlich, B. Olivier, Laurent Favart, David South, T. Anthonis, Laurent Schoeffel, V. Efremenko, J-P. Meyer, L. Lindfeld, J. E. Olsson, Paul Laycock, E. Malinovski, Emmanuel Sauvan, W. Bartel, C. Wigmore, L. Hajduk, J. Žáček, Malte Hildebrandt, F. W. Büsser, I. Milcewicz-Mika, B. Vujicic, Katerina Lipka, A. Vest, V. Tchoulakov, Claus Kleinwort, E. Barrelet, S. Mikocki, P. Baranov, O. Behrendt, S. Vinokurova, Y. Vazdik, P. Van Mechelen, D. Lüke, A. Nikiforov, Hans-Christian Schultz-Coulon, P. Kostka, M. Urban, I. R. Kenyon, S. Schätzel, Theodora Papadopoulou, G. Grindhammer, Peter Robmann, Natasa Raicevic, Vladimir Palichik, S. Essenov, K. H. Hiller, Stefania Xella, V. Cerny, T. Kluge, Z. Rurikova, E. A. De Wolf, Ch. Berger, Karlheinz Meier, R. Roosen, K. Krüger, Alexandre Lebedev, L. Finke, Vincent Boudry, Fabian Zomer, R. C. W. Henderson, V. Lubimov, C. Werner, A. D.R. Vargas Trevino, N. Werner, V. Chekelian, Thorsten Lux, K. Müller, E. Gabathuler, A. N. Morozov, T. J. Sloan, P.J.W. Faulkner, D. Perez-Astudillo, M. Gregori, A.S. Belousov, L. Janauschek, N. Van Remortel, Jan Kretzschmar, J. Turnau, Sergey Rusakov, R. Eichler, I. Foresti, Y. de Boer, G. Cozzika, K. Daum, Christian Schwanenberger, Stephen Maxfield, F. Tomasz, P. Truöl, Magnus Hansson, M. Jacquet, A. Baghdasaryan, A. Rostovtsev, J. Stiewe, Andrew Mehta, J. Bracinik, G. Knies, E. E. Elsen, Guenter Eckerlin, M. Goettlich, Stefan Valkar, André Schöning, I. Herynek, N. Gogitidze, V. Andreev, L. Goerlich, Paul Newman, Pierre Marage, S. Backovic, K. Nankov, W.D. Dau, J. B. Dainton, B. Leißner, E. Perez, R. Marshall, C. Schmitz, J. Formánek, I. Sheviakov, S. Schmitt, Hannes Jung, Alexander Zhokin, N. Keller, D. Utkin, G. Nowak, L. N. Shtarkov, John A Coughlan, I. Tsakov, B. Delcourt, A. Specka, R. Gerhards, V. Lendermann, J. Bähr, V. Schröder, C. Niebuhr, H. Lueders, Matthias Ulrich Mozer, M. Ellerbrock, Yves Sirois, J. Becker, G. Herrera, I. Glushkov, A. Fedotov, S. Egli, Bradley Cox, R. Wolf, A.-I. Lucaci-Timoce, S. Ginzburgskaya, J. Zimmermann, J. Zálešák, Y. Soloviev, C. Kiesling, V. Spaskov, Dirk L. Hoffmann, J. C. Bizot, G. Franke, A. De Roeck, F. P. Schilling, E. Tzamariudaki, A. J. Campbell, G. Weber, J. Kückens, K. Wacker, Christoph Grab, L. Bystritskaya, U. Straumann, A. Makankine, Matthew Beckingham, Thomas Naumann, Sakar Osman, Anna Kropivnitskaya, R. Felst, H. Zohrabyan, G. Buschhorn, C. Veelken, D. Ozerov, R. Weber, J. Wagner, S. Caron, D. Meer, O. Behnke, G. Thompson, D.K. Nikitin, O. Henshaw, Karel Cerny, H. Henschel, Wolfram Erdmann, A. Glazov, C. Pascaud, L. Lytkin, Cristinel Diaconu, S. Ghazaryan, Klaus Desch, A. Rimmer, A. Knutsson, C. Vallée, F. Salvaire, D. Haidt, C. Goyon, Eram Rizvi, G. Heinzelmann, V. Dodonov, Leif J. Jönsson, Benoit Roland, T. Klimkovich, M. Peez, E. Wünsch, Dave Sankey, G. D. Patel, H. Meyer, D.P. Johnson, N. Malden, J. V. Morris, A. Bunyatyan, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), H1, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and H1 Collaboration
Subjects: Quark, Particle physics, Photon, Physics and Astronomy (miscellaneous), Hadron, FOS: Physical sciences, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, law.invention, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Experiment, 010306 general physics, Collider, Engineering (miscellaneous), Physics, Muon, 010308 nuclear & particles physics, Perturbative QCD, HERA, Deep inelastic scattering, High Energy Physics::Experiment
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., 33 pages, 11 figures, 6 tables
Published: 2005

33. Measurement of Charm and Beauty Photoproduction at HERA using D* mu Correlations

Author: C. Niebuhr, S. Egli, Y. Soloviev, Georgios Tsipolitis, M. Fleischer, F. P. Schilling, Christoph Grab, A. Makankine, G. Buschhorn, Bogdan Povh, F. Sefkow, D. Ozerov, T. Laštovička, A. Vest, John A Coughlan, O. Behrendt, S. Vinokurova, E. Barrelet, Z. Rurikova, Adrian Perieanu, E. A. De Wolf, Ch. Berger, Karlheinz Meier, R. Roosen, P. Kostka, Paul Laycock, E. Malinovski, Emmanuel Sauvan, J. Turnau, G. Grindhammer, I. Foresti, A. Baghdasaryan, A. Rostovtsev, B. Stella, J. Žáček, T. Kluge, Gerhard Brandt, K. Krastev, G. Cozzika, V. Volchinski, N. Werner, I. Tsakov, B. Wessling, H. U. Martyn, Matthias Klein, T. Frisson, L. Lindfeld, H. Meyer, R. Demirchyan, Vladimir Palichik, I. Strauch, Roland Horisberger, Philipp Fleischmann, A. Valkárová, D. Wegener, I. R. Kenyon, Stefan Valkar, V. Lubimov, C. Pascaud, B. Olivier, C. Schmitz, Hannes Jung, Alexander Zhokin, V. Efremenko, Xavier Janssen, S. Mikocki, Guenter Eckerlin, A. Dubak, Peter Robmann, M. Goettlich, J. Formánek, Hans-Christian Schultz-Coulon, Martin Karlsson, V. Yeganov, J. Becker, C. Vallée, D. Utkin, J. Bähr, B. Vujicic, Magnus Hansson, Paul Richard Newman, Grzegorz Nowak, Zhen Zhang, K. Nankov, Ricardo Lopez-Fernandez, P. E. Reimer, Klaus Desch, F. Moreau, S. J. Aplin, L. N. Shtarkov, A. Rimmer, D. Hoffmann, Andreas Meyer, D. Meer, S. Backovic, R. Koutouev, A. Petrukhin, J-P. Meyer, P. Baranov, R. Weber, G. G. Winter, Gero Flucke, A. Knutsson, A. Usik, Sakar Osman, S. Baumgartner, L. Goerlich, V. Chekelian, G. Frising, H. Lueders, M. Kapichine, M. Nozicka, C. Veelken, S. Baudrand, A. Nikiforov, B. Delcourt, Wolfgang Lange, Ewelina Lobodzinska, Matthew Beckingham, S. Essenov, A. M. Fomenko, J. E. Olsson, Leif J. Jönsson, V. Cerny, A. Falkewicz, W. Bartel, V. Jemanov, Benoit Roland, Matthias Ulrich Mozer, S. Levonian, S. Schätzel, J. Gayler, C. Gerlich, Anna Kropivnitskaya, R. Felst, K. H. Hiller, R. C. W. Henderson, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Malte Hildebrandt, Sergey Rusakov, P. Truöl, A. Fedotov, T. Klimkovich, F. W. Büsser, M. Peez, S. Ginzburgskaya, C. Kiesling, W. Yan, R. Marshall, A. De Roeck, E. Tzamariudaki, A. J. Campbell, G. Thompson, D.P. Brown, J. Haller, N. Loktionova, R. Eichler, Michael R. Wessels, David South, V. Brisson, Theodora Papadopoulou, M.-O. Boenig, A. Specka, A. Hovhannisyan, Søren Schmidt, S. Mangano, K. Krüger, Natasa Raicevic, H. Henschel, I. Sheviakov, S. Schmitt, Th. Naumann, I. Tsurin, B. Portheault, Nicolas Berger, E. Gabathuler, J.C. Bizot, E. E. Elsen, K. Müller, C. Wigmore, Vincent Boudry, A. Zhelezov, A. Schöning, A. D.R. Vargas Trevino, Emmanuelle Perez, Christian Schwanenberger, A. Aktas, J. Zimmermann, Y. Vazdik, A. N. Morozov, P.D. Thompson, Stefania Xella, Stephen Maxfield, D. Perez-Astudillo, C. Risler, M. Gregori, J. Zálešák, V. Spaskov, R. Gerhards, J. Stiewe, F. Zomer, J. Kückens, K. Wacker, Dusan Bruncko, B. Naroska, Andrew Mehta, J. Bracinik, T. Greenshaw, Erika Garutti, J. Ferencei, M. Martisikova, J. Naumann, Katerina Lipka, Claus Kleinwort, N. Gogitidze, V. Tchoulakov, L. Bystritskaya, V. Andreev, H. Zohrabyan, C. Gwilliam, R. Plačakytė, A. Astvatsatourov, M. Ellerbrock, N. Keller, G. Herrera, Bradley Cox, Yves Sirois, V. Lendermann, V. Schröder, R. Wolf, A.-I. Lucaci-Timoce, G. Franke, F. Eisele, Judith Katzy, R. Oganezov, K. Sedlák, Y.H. Fleming, J. Cvach, C. Goyon, J. Wagner, Karel Cerny, A. Glazov, G. Weber, U. Straumann, V. Korbel, C. Werner, W.D. Dau, J. B. Dainton, B. Leißner, M. Ismail, David Milstead, P. A. Smirnov, O. Henshaw, L. Finke, K. Daum, F. Tomasz, G. Knies, M. Jacquet, I. Milcewicz-Mika, Anton Babaev, J. G. Contreras, Laurent Schoeffel, A. Mohamed, P. Prideaux, Murrough Landon, Pavel Murin, S. Gorbounov, M. Ibbotson, Wolfram Erdmann, B. List, P. Van Mechelen, Laurent Favart, T. Anthonis, J. V. Morris, A. Bunyatyan, D. Lüke, E. Wünsch, Dave Sankey, G. D. Patel, D.P. Johnson, N. Malden, A. Lebedev, F. Salvaire, D. Haidt, Daniel Pitzl, D. Traynor, A. Asmone, S. Ghazaryan, Eram Rizvi, G. Heinzelmann, F. Cassol-Brunner, V. Dodonov, L. Hajduk, M. Urban, C. Wissing, Jan Kretzschmar, L. Lytkin, Cristinel Diaconu, Thorsten Lux, L. Janauschek, N. Van Remortel, S. Caron, D.K. Nikitin, Pierre Marage, I. Glushkov, O. Behnke, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and H1 Collaboration
Subjects: Nuclear and High Energy Physics, Particle physics, Meson, Proton, High Energy Physics::Lattice, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, law.invention, High Energy Physics - Experiment, Nuclear physics, Cross section (physics), High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Charm (quantum number), 010306 general physics, Collider, Nuclear Experiment, Physics, Quantum chromodynamics, Muon, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, HERA, Physique des particules élémentaires, High Energy Physics::Experiment
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. © 2005 Elsevier B.V. All rights reserved., 0, DESY-05-040 / hep-ex/0503038, H1 Collaboration., info:eu-repo/semantics/published
Published: 2005
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34. Inclusive Production of $D^+, D^0, D_s^+ and D^*+$ Mesons in Deep Inelastic Scattering at HERA

Author: J-P. Meyer, Paul Laycock, E. Malinovski, Emmanuel Sauvan, Pavel Murin, H. Grässler, G. Grindhammer, M. Ibbotson, J. Dingfelder, N. Werner, A. Makankine, G. Buschhorn, T. Kuhr, Leif J. Jönsson, Benoit Roland, J. Garvey, S. Caron, A. M. Fomenko, D. Ozerov, R. Weber, Laurent Favart, T. Anthonis, C. Gerlich, T. Klimkovich, G. Thompson, P. Höting, S. Michine, J. Kroseberg, B. Portheault, Georgios Tsipolitis, M. Fleischer, T. Laštovička, Bogdan Povh, F. Sefkow, G. Ossoskov, P. D. Thompson, V. Yeganov, Th. Naumann, D.K. Nikitin, O. Henshaw, C. Pascaud, Guenter Eckerlin, André Schöning, L. Lytkin, H. Henschel, E. Barrelet, S. Mangano, J. Žáček, I. Strauch, B. Wessling, Philipp Fleischmann, Cristinel Diaconu, Z. Rurikova, V. Jemanov, M.-O. Boenig, J.C. Bizot, Fabian Zomer, Laurent Schoeffel, Daniel Pitzl, V. Chekelian, V. Nagovizin, S. Schmidt, V. Lubimov, E. A. De Wolf, Ch. Berger, Karlheinz Meier, R. Roosen, E. Gabathuler, D. Traynor, Hans-Christian Schultz-Coulon, I. Foresti, Wolfram Erdmann, E. Wünsch, G. Cozzika, E. E. Woehrling, Murrough Landon, Dave Sankey, Wolfgang Lange, R. Plačakyte, Roland Horisberger, L. Hajduk, Stefan Valkar, A. Valkárová, Nicolas Berger, A. Rostovtsev, Magnus Hansson, J. Gayler, M. Ismail, David Milstead, Paul Newman, H. U. Martyn, Matthias Klein, I. Herynek, B. List, S. Gorbounov, A. Aktas, G. D. Patel, K. Wacker, H. Meyer, P. A. Smirnov, Grzegorz Nowak, H.-B. Bröker, Hannes Jung, Alexander Zhokin, Dusan Bruncko, S. Ghazaryan, J. Becker, D.P. Johnson, L. N. Shtarkov, B. Naroska, B. Olivier, R. Koutouev, A. Petrukhin, C. Wissing, Klaus Desch, A. Dubak, N. Malden, Pierre Marage, H. Spitzer, A. Rimmer, R. Heremans, R. Eichler, Adrian Perieanu, Martin Karlsson, T. Kluge, T. Greenshaw, Erika Garutti, L. Goerlich, Peter Robmann, I. Morozov, Y. Vazdik, A. Knutsson, D. Lüke, A. Nikiforov, C. Vallée, M. Peez, Stefania Xella, D. Kant, P. Van Mechelen, L. Bystritskaya, D. Utkin, B. Reisert, J. Ferencei, M. Martisikova, J. Naumann, J. Bähr, V. Volchinski, Thorsten Lux, L. Janauschek, N. Van Remortel, D. Haidt, G. Weber, R. Demirchyan, U. Straumann, A. Vest, Gero Flucke, M. Kapichine, O. Behnke, M. Beckingham, D.P. Brown, J. Haller, J. Marks, Claus Kleinwort, M. Nozicka, Xavier Janssen, C. Niebuhr, J. Scheins, S. Levonian, O. Behrendt, S. Vinokurova, H. Zohrabyan, R. Lemrani, P. Kostka, R. D. Heuer, S. Egli, Eram Rizvi, G. Heinzelmann, V. Dodonov, J. Kennedy, V. Brisson, Matthias Ulrich Mozer, A. Fedotov, R. Pöschl, Katerina Lipka, V. Andreev, W.D. Dau, J. B. Dainton, I. Sheviakov, S. Schmitt, M. Schneider, V. Tchoulakov, J. Turnau, B. Delcourt, J. Graves, K. Müller, P. E. Reimer, S. Backovic, H. Lueders, Z. Ratiani, V. Korbel, B. Leißner, Christian Schwanenberger, Y.R. Coppens, K. Daum, Y. Soloviev, Anton Babaev, C. Risler, A. Specka, Martin Erdmann, F. P. Schilling, S. Schätzel, C. Gwilliam, J. V. Morris, M. Urban, Günter Flügge, C. Kiesling, A. De Roeck, E. Tzamariudaki, A. J. Campbell, K. H. Hiller, M. Jacquet, N. Keller, F. Tomasz, G. Knies, R. C. W. Henderson, J. G. Contreras, A. Mohamed, V. Lendermann, V. Schröder, A. Bunyatyan, J. Zálešák, V. Spaskov, J. Kückens, Yves Sirois, K. Rybicki, G. G. Winter, David South, Christoph Grab, Judith Katzy, A. Asmone, Alexandre Lebedev, Y.H. Fleming, C. Veelken, C. Werner, Rainer Stamen, Dirk L. Hoffmann, G. Franke, D. Meer, C. Duprel, I. Milcewicz-Mika, F. Eisele, J. Cvach, J. Wagner, R. Oganezov, K. Sedlák, F. Cassol-Brunner, J. Böhme, Karel Cerny, A. Uraev, Stephen Maxfield, J. Stiewe, Andrew Mehta, J. Bracinik, N. Gogitidze, A. D.R. Vargas Trevino, M. Schneebeli, M. Wessels, M. Ellerbrock, G. Herrera, Bradley Cox, R. Wolf, R. Gerhards, E. E. Elsen, Zhen Zhang, K. Gabathuler, D. Wegener, Ricardo Lopez-Fernandez, V. Boudry, Emmanuelle Perez, Caroline Collard, S. Baumgartner, V. Efremenko, B. Koblitz, Andreas Meyer, S. Mikocki, A. Usik, G. Frising, J. E. Olsson, W. Bartel, J. Formánek, Malte Hildebrandt, F. W. Büsser, I. R. Kenyon, T. Berndt, Natasa Raicevic, A. N. Morozov, P. Baranov, M. Gregori, Peter Schleper, L. Lindfeld, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, W. Yan, N. Loktionova, A. Hovhannisyan, I. Tsurin, R. Marshall, B. Stella, Ewelina Lobodzinska, Anna Kropivnitskaya, R. Felst, J. Gassner, F. Moreau, John A Coughlan, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), H1, and H1 Collaboration
Subjects: Quark, Particle physics, Photon, Physics and Astronomy (miscellaneous), Meson, High Energy Physics::Lattice, Nuclear Theory, FOS: Physical sciences, 01 natural sciences, Charm quark, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, Scattering, High Energy Physics::Phenomenology, HERA, Deep inelastic scattering, Pseudorapidity, High Energy Physics::Experiment
Abstract: Inclusive production cross sections are measured in deep inelastic scattering at HERA for meson states composed of a charm quark and a light antiquark or the charge conjugate. The measurements cover the kinematic region of photon virtuality 2 < Q 2 < 100 Gev2, inelasticity 0.05 < y < 0.7, D meson transverse momenta pt(D)≥2.5 Gev and pseudorapidity |η(D)|≤1.5. The identification of the D-meson decays and the reduction of the combinatorial background profit from the reconstruction of displaced secondary vertices by means of the H1 silicon vertex detector. The production of charmed mesons containing the light quarks u,d and s is found to be compatible with a description in which the hard scattering is followed by a factorisable and universal hadronisation process., The European Physical Journal C, 38 (4), ISSN:1434-6044, ISSN:1434-6052
Published: 2005

35. A Direct Search for Stable Magnetic Monopoles Produced in Positron-Proton Collisions at HERA

Author: A. Vest, O. Behrendt, S. Vinokurova, W. Yan, P. Kostka, N. Loktionova, A. Hovhannisyan, J. Turnau, Judith Katzy, I. Tsurin, A. Asmone, Y.H. Fleming, J. Scheins, W.D. Dau, J. B. Dainton, B. Leißner, I. Tsakov, Dusan Bruncko, B. Naroska, M.-O. Boenig, B. Wessling, I. Milcewicz-Mika, M. Jacquet, E. E. Elsen, T. Greenshaw, Erika Garutti, J. E. Olsson, W. Bartel, C. Wissing, J. Ferencei, M. Martisikova, J. Naumann, Malte Hildebrandt, Nicolas Berger, Georgios Tsipolitis, Claus Kleinwort, A. Baghdasaryan, A. Rostovtsev, Max Klein, C. Goyon, I. Sheviakov, S. Schmitt, M. Fleischer, F. Eisele, L. Finke, R. Plačakyte, F. W. Büsser, C. Risler, J. Zimmermann, M. Ismail, David Milstead, P. A. Smirnov, Thorsten Lux, L. Janauschek, N. Van Remortel, R. Oganezov, K. Sedlák, R. Koutouev, A. Petrukhin, V. Korbel, E. Lobodzinska, Bogdan Povh, C. Pascaud, I. R. Kenyon, J. Zálešák, V. Spaskov, A. Zhelezov, Paul Laycock, S. Baudrand, B. Stella, E. Malinovski, Adrian Perieanu, F. Sefkow, L. Lytkin, B. Vujicic, Cristinel Diaconu, C. Gwilliam, Gero Flucke, K. Daum, Natasa Raicevic, J. Kückens, K. Wacker, D. Utkin, Emmanuel Sauvan, Pierre Marage, G. Grindhammer, K. Müller, Christian Schwanenberger, B. Portheault, Vincent Boudry, Th. Naumann, Gerhard Brandt, E. Wünsch, P. Baranov, Sakar Osman, H. U. Martyn, M. Kapichine, M. Nozicka, A. M. Fomenko, I. Glushkov, J. Bähr, V. Volchinski, Dave Sankey, F. Tomasz, R. Demirchyan, L. Bystritskaya, G. Knies, C. Gerlich, Leif J. Jönsson, N. Werner, Benoit Roland, Xavier Janssen, V. Chekelian, Magnus Hansson, Alexandre Lebedev, C. Niebuhr, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, C. Wigmore, Sergey Rusakov, Wolfram Erdmann, P. Truöl, D.P. Brown, J. Haller, E. Gabathuler, C. Veelken, O. Behnke, V. Brisson, G. D. Patel, H. Meyer, C. Werner, T. Klimkovich, S. Egli, J. Cvach, M. Peez, A. N. Morozov, D. Perez-Astudillo, M. Gregori, H. Zohrabyan, V. Andreev, Daniel Pitzl, Katerina Lipka, D.P. Johnson, F. Cassol-Brunner, D. Traynor, Y. Soloviev, T. Laštovička, N. Malden, T. Kluge, L. Hajduk, F. P. Schilling, D. Meer, Stephen Maxfield, J. Wagner, E. Barrelet, S. Ghazaryan, C. Vallée, J. Stiewe, Z. Rurikova, M. Urban, Yves Sirois, N. Keller, Zhen Zhang, Ricardo Lopez-Fernandez, V. Tchoulakov, Andrew Mehta, J. Bracinik, E. A. De Wolf, Ch. Berger, S. Baumgartner, Anton Babaev, J. G. Contreras, G. Nowak, F. Salvaire, D. Haidt, Karel Cerny, K. H. Hiller, Guenter Eckerlin, André Schöning, N. Gogitidze, R. Roosen, L. Goerlich, Jan Kretzschmar, Dirk L. Hoffmann, J. C. Bizot, S. Schätzel, Christoph Grab, V. Lendermann, V. Schröder, R. C. W. Henderson, G. Franke, B. Delcourt, A. Mohamed, Laurent Schoeffel, J. Žáček, Eram Rizvi, S. Schmidt, Andreas Meyer, S. Caron, A. Usik, G. Heinzelmann, V. Dodonov, Y. Vazdik, I. Herynek, D. Lüke, M. Wessels, Hans-Christian Schultz-Coulon, M. Ellerbrock, A.-I. Lucaci-Timoce, Roland Horisberger, A. Valkárová, P. Prideaux, G. Herrera, Bradley Cox, V. Lubimov, Fabian Zomer, D.K. Nikitin, Stefania Xella, R. Wolf, Murrough Landon, Matthew Beckingham, G. Frising, A. Glazov, O. Henshaw, Paul Newman, J. V. Morris, R. Eichler, Anna Kropivnitskaya, R. Felst, S. Gorbounov, A. Bunyatyan, Matthias Ulrich Mozer, A. Fedotov, V. Jemanov, John A Coughlan, S. Ginzburgskaya, P. Van Mechelen, C. Kiesling, I. Foresti, G. Cozzika, A. De Roeck, E. Tzamariudaki, A. J. Campbell, R. D. Heuer, Pavel Murin, A. Specka, Martin Karlsson, A. Dubak, G. Weber, U. Straumann, M. Ibbotson, K. Krastev, L. Lindfeld, Stefan Valkar, C. Schmitz, Hannes Jung, Alexander Zhokin, J. Becker, K. Nankov, L. N. Shtarkov, B. List, A. Aktas, B. Olivier, G. Thompson, Laurent Favart, T. Anthonis, H. Henschel, S. Levonian, A. Nikiforov, David South, K. Krüger, R. Pöschl, R. Marshall, Klaus Desch, A. Rimmer, A. Knutsson, K. Meier, A. Makankine, G. Buschhorn, D. Ozerov, R. Weber, D. Wegener, V. Efremenko, S. Mikocki, P. E. Reimer, G. G. Winter, M. Goettlich, J. Formánek, A. D.R. Vargas Trevino, P. D. Thompson, V. Yeganov, S. Mangano, F. Moreau, S. J. Aplin, S. Essenov, E. Perez, R. Gerhards, Wolfgang Lange, J. Gayler, Peter Robmann, S. Backovic, H. Lueders, T. Frisson, I. Strauch, Philipp Fleischmann, J-P. Meyer, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), H1, Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and H1 Collaboration
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Proton, Magnetometer, Magnetic monopole, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, law.invention, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Positron, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], 010306 general physics, Engineering (miscellaneous), Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, HERA, 3. Good health, MoEDAL experiment, High Energy Physics::Experiment, Beam (structure)
Abstract: A direct search has been made for magnetic monopoles produced in e^+ p collisions at a centre of mass energy of 300 GeV at HERA. The beam pipe surrounding the interaction region in 1995-1997 was investigated using a SQUID magnetometer to look for stopped magnetic monopoles. During this time an integrated luminosity of 62 pb^{-1} was delivered. No magnetic monopoles were observed and charge and mass dependent upper limits on the e^+ p production cross section are set., 23 pages, 11 figures, 1 table
Published: 2005

36. Measurement of dijet production at low <tex>Q^{2}$</tex> at HERA

Author: Judith Katzy, D. Kant, I. Sheviakov, S. Schmitt, A. Asmone, Y.H. Fleming, Pierre Marage, N. Delerue, E. Wünsch, Anton Babaev, J. G. Contreras, Dave Sankey, V. Volchinski, R. Koutouev, A. Petrukhin, Paul Laycock, E. Malinovski, M. C. Cousinou, A. Vest, Emmanuel Sauvan, R. Demirchyan, V. Spaskov, C. Duprel, K. Daum, S. Caron, J. Zacek, Xavier Janssen, G. Grindhammer, J. Dingfelder, H. Spitzer, J. Kückens, G. D. Patel, K. Wacker, H. Meyer, K. Gabathuler, F. Tomasz, M. Winde, John A Coughlan, A. Dubak, A. Rostovtsev, O. Behrendt, N. Werner, D.P. Johnson, D. Wegener, S. Vinokurova, Peter Robmann, G. Knies, N. Malden, S. Lüders, D.K. Nikitin, O. Henshaw, T. Kuhr, V. Jemanov, P. Baranov, V. Lubimov, Caroline Collard, Peter Schleper, Y. Vazdik, J. Kroseberg, J. Kennedy, G. Thompson, H. U. Martyn, P. E. Reimer, J. V. Morris, O. Behnke, M.-O. Boenig, V. Chekelian, V. Brisson, S. Vassiliev, D. Lüke, V. Nagovizin, Rainer Stamen, N. Keller, G. Nowak, V. Efremenko, B. Koblitz, I. Milcewicz, E. E. Woehrling, T. Laštovička, D. South, A. Bunyatyan, V. Lendermann, V. Schröder, C. Wissing, R. Lemrani, B. List, A. Aktas, Daniel Pitzl, S. Mikocki, Zhen Zhang, Ricardo Lopez-Fernandez, E. Barrelet, Thorsten Lux, M. Peez, Murrough Landon, Nicolas Berger, Eckhard Elsen, L. N. Shtarkov, H. Henschel, B. Olivier, B. Reisert, S. Baumgartner, L. Janauschek, D. Traynor, F. Cassol-Brunner, S. Gorbounov, G. G. Winter, Z. Rurikova, Andreas Meyer, A. Usik, G. Frising, P. Höting, L. Hajduk, Leif J. Jönsson, Dusan Bruncko, K. H. Hiller, R. C. W. Henderson, M. Beckingham, S. Backovic, E. A. De Wolf, Ch. Berger, D.P. Brown, P. Kostka, J. Haller, Karlheinz Meier, R. Roosen, S. Michine, B. Leissner, J-P. Meyer, P. Van Mechelen, B. Naroska, Matthias Ulrich Mozer, J.C. Bizot, A. Fedotov, Fabian Zomer, Laurent Schoeffel, C. Risler, R. D. Heuer, S. Schmidt, H. Lueders, J. Turnau, J. E. Olsson, W. Bartel, J. Formánek, Günter Flügge, I. Herynek, B. Stella, T. Kluge, Klaus Desch, D. Haidt, I. Foresti, G. Cozzika, Michael Schneider, J. Chyla, T. Greenshaw, Wolfram Erdmann, T. J. Sloan, F. W. Büsser, W. Braunschweig, C. Kiesling, Eram Rizvi, Stefan Valkar, G. Heinzelmann, I. R. Kenyon, A. Specka, T. Berndt, Martin Erdmann, Natasa Raicevic, V. Dodonov, S. Levonian, Anna Kropivnitskaya, Vincent Boudry, R. Felst, A. Knutsson, A. N. Morozov, M. Hildebrandt, I. Morozov, A. De Roeck, M. Gregori, E. Tzamariudaki, A. J. Campbell, Y.R. Coppens, Jan Hladky, J. Ferencei, J. Rauschenberger, M. Martisikova, J. Naumann, L. Bystritskaya, S. Ghazaryan, H.-B. Bröker, Hannes Jung, Alexander Zhokin, A. D.R. Vargas Trevino, H. Zohrabyan, I. Strauch, J. Marks, P. D. Thompson, Philipp Fleischmann, F. Eisele, J. Becker, C. Vallée, A. Makankine, G. Buschhorn, Claus Kleinwort, L. Lytkin, R. Heremans, Wolfgang Lange, S. Mangano, D. Ozerov, R. Weber, F. Moreau, Cristinel Diaconu, Roland Horisberger, Marek Tasevsky, E. Perez, K. Sedlák, Georgios Tsipolitis, J. Gayler, A. Valkárová, Gero Flucke, M. Kapichine, R. Gerhards, M. Nozicka, M. Fleischer, Th. Naumann, B. Delcourt, Martin Karlsson, B. Portheault, S. Schätzel, S. D. Kolya, E. Gabathuler, C. Veelken, D. Meer, R. Pöschl, R. Marshall, E. Lobodzinska, Bogdan Povh, Paul Newman, F. Sefkow, B. Waugh, V. Grabski, G. Weber, U. Straumann, V. Andreev, J. Wagner, J. Böhme, Karel Cerny, J. Scheins, A. Uraev, M. Jacquet, C. Johnson, V. Korbel, W.D. Dau, J. B. Dainton, J. Garvey, Yves Sirois, Alexandre Lebedev, C. Werner, Dirk L. Hoffmann, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, A. M. Fomenko, J. D. Dowell, W. Yan, G. Franke, N. Loktionova, J. Gassner, A. Hovhannisyan, I. Tsurin, J. Zalesak, J. Martyniak, J. Bähr, C. Niebuhr, S. Egli, Y. Soloviev, F. P. Schilling, Max Klein, C. Gerlich, K. Rybicki, Christoph Grab, Hans-Christian Schultz-Coulon, A. Vichnevski, M. Ismail, David Milstead, P. A. Smirnov, R. Eichler, G. Ossoskov, M. Urban, C. Pascaud, Guenter Eckerlin, André Schöning, L. Goerlich, J. Cvach, B. Wessling, K. Müller, Christian Schwanenberger, Stephen Maxfield, J. Stiewe, Andrew Mehta, J. Bracinik, N. Gogitidze, M. Wessels, M. Ellerbrock, G. Herrera, Bradley Cox, Pavel Murin, H. Grässler, M. Ibbotson, Laurent Favart, T. Anthonis, Adrian Perieanu, and H1 Collaboration
Subjects: Quantum chromodynamics, Physics, Particle physics, Photon, Luminosity (scattering theory), Physics and Astronomy (miscellaneous), Monte Carlo method, Virtual particle, Parton, HERA, Jet (particle physics), Nuclear physics, High Energy Physics::Experiment, Nuclear Experiment, Engineering (miscellaneous)
Abstract: Triple differential dijet cross sections in e±p interactions are presented in the region of photon virtualities 2 < Q 2 < 80 GeV2, inelasticities 0.1 < y < 0.85, jet transverse energies E * T 1 > 7 GeV, E * T 2 > 5 GeV, and pseudorapidities −2.5, The European Physical Journal C, 37 (2), ISSN:1434-6044, ISSN:1434-6052
Published: 2004

37. Inclusive dijet production at low Bjorken-x in deep inelastic scattering

Author: J. V. Morris, J.E. Turney, V. Andreev, P. Höting, M. C. Cousinou, K. Meier, M. Jacquet, Yves Sirois, A. Bunyatyan, Peter Schleper, Paul Newman, Dirk L. Hoffmann, J. C. Bizot, F. Eisele, M. zur Nedden, K. Sedlák, G. Franke, J. Žáček, Hans-Christian Schultz-Coulon, J. Kueckens, A. Vichnevski, I. Morozov, P. D. Thompson, P. E. Reimer, K. Gabathuler, G. Ossoskov, Paul Laycock, E. Malinovski, S. Levonian, A. B. Meyer, R. Eichler, A. Vest, S. Lüders, A. Makankine, G. Buschhorn, Emmanuel Sauvan, B. Wessling, G. Grindhammer, J. Dingfelder, D. Ozerov, R. Weber, L. Bystritskaya, P.J.W. Faulkner, Sergey Rusakov, N. Werner, T. Kuhr, Gero Flucke, M. Kapichine, M. Nozicka, B. Waugh, G. Weber, D. Wegener, R. Pöschl, U. Straumann, Y.R. Coppens, Laurent Schoeffel, S. Schmidt, D. Haidt, V. Efremenko, B. Koblitz, T. J. Sloan, Eram Rizvi, G. Heinzelmann, V. Dodonov, V. Korbel, Alexandre Lebedev, C. Werner, J. E. Olsson, F. W. Büsser, I. R. Kenyon, T. Berndt, Natasa Raicevic, Vincent Boudry, J. Scheins, C. Johnson, W.D. Dau, C. Risler, V. Volchinski, R. Demirchyan, D. Kant, Xavier Janssen, M. Beckingham, A. Fedotov, Günter Flügge, C. Kiesling, K. Müller, I. Sheviakov, S. Schmitt, Leif J. Jönsson, F. Tomasz, G. Knies, H. Spitzer, S. Mangano, F. Moreau, J. Hladký, S. D. Kolya, G. G. Winter, O. Behrendt, S. Vinokurova, R. Lemrani, P. Kostka, J. Turnau, C. Niebuhr, S. Egli, Y. Soloviev, F. P. Schilling, S. Schätzel, Wolfram Erdmann, J. G. Contreras, D.P. Brown, S. Ghazaryan, J. Wagner, C. Berger, V. Lubimov, Christian Schwanenberger, J. Rauschenberger, F. Keil, Wolfgang Lange, J. Gayler, K. H. Hiller, P. Truöl, R. C. W. Henderson, A. D.R. Vargas Trevino, A. N. Morozov, M. Gregori, J. Böhme, Martin Erdmann, F. Niebergall, A. J. Campbell, M.-O. Boenig, A. De Roeck, E. Tzamariudaki, B. Stella, V. Spaskov, Rainer Stamen, D. South, Anna Kropivnitskaya, E. Wünsch, Dave Sankey, N. Delerue, C. Pascaud, Guenter Eckerlin, André Schöning, L. Goerlich, L. N. Shtarkov, N. Keller, A. Uraev, R. Felst, Michael Schneider, A. Babaev, V. Jemanov, K. Rybicki, Christoph Grab, G. Nowak, S. Mikocki, M. Hildebrandt, V. Chekelian, V. Nagovizin, V. Lendermann, Pavel Murin, H. Grässler, E. E. Woehrling, V. Schröder, M. Ibbotson, G. D. Patel, H. Meyer, D.P. Johnson, Judith Katzy, Murrough Landon, A. Rostovtsev, Max Klein, N. Malden, C. Collard, A. Asmone, Y.H. Fleming, E. Perez, S. Gorbounov, J-P. Meyer, S. Caron, A. Specka, K. Daum, N. Loktionova, R. Marshall, C. Veelken, J. Gassner, M. Winde, P. Baranov, David Milstead, R. Gerhards, A. Hovhannisyan, P. A. Smirnov, A. Dubak, Dusan Bruncko, B. List, D. Meer, I. Tsurin, C. Duprel, A. Aktas, D.K. Nikitin, O. Henshaw, B. Reisert, J. Bähr, B. Naroska, W. Braunschweig, J. B. Dainton, S. Michine, J. Zalesak, P. Van Mechelen, B. Olivier, E. E. Elsen, C. Wissing, J. Garvey, T. Kluge, T. Greenshaw, J. Martyniak, G. Thompson, Y. Vazdik, H. U. Martyn, D. Lüke, M. Peez, Roland Horisberger, Laurent Favart, T. Anthonis, A. Valkárová, J. Ferencei, J. Naumann, L. Janauschek, J. Formánek, I. Strauch, J. Marks, Philipp Fleischmann, Claus Kleinwort, A. Belousov, Varlen Grabski, Th. Naumann, Peter Robmann, Zhen Zhang, Ricardo Lopez-Fernandez, J. Haller, Martin Karlsson, S. Baumgartner, Stephen Maxfield, J. Stiewe, A. M. Fomenko, E. Gabathuler, J. D. Dowell, J. A. Coughlan, A. Usik, K. Wacker, G. Frising, B. Delcourt, B. E. Cox, Andrew Mehta, J. Bracinik, S. Backovic, D. Clarke, H. Lueders, N. Gogitidze, H. Henschel, C. Gerlich, Fabian Zomer, M. Wessels, M. Ellerbrock, J. Kroseberg, I. Foresti, G. Herrera, G. Cozzika, Stefan Valkar, H.-B. Bröker, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, R. Heremans, W. Bartel, Georgios Tsipolitis, M. Fleischer, E. Lobodzinska, Bogdan Povh, F. Sefkow, B. Leibner, R. Koutouev, A. Petrukhin, J. Cvach, J. Kennedy, V. Brisson, S. Vassiliev, T. Laštovička, E. Barrelet, E. A. De Wolf, R. Roosen, I. Herynek, Pierre Marage, O. Behnke, L. Lytkin, Cristinel Diaconu, Daniel Pitzl, D. Traynor, F. Cassol-Brunner, L. Hajduk, M. Urban, Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, H1 Collaboration, Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), and Damoiseaux, Magali
Subjects: Physics, Particle physics, Photon, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics and Astronomy (miscellaneous), Scattering, FOS: Physical sciences, Perturbative QCD, Virtual particle, Parton, Deep inelastic scattering, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Factorization, Phase space, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Engineering (miscellaneous)
Abstract: Dijet production in deep inelastic ep scattering is investigated in the region of low values of the Bjorken-variable x (10-4 < x < 10-2) and low photon virtualities Q 2 (5 < Q 2 < 100 GeV2). The measured dijet cross sections are compared with perturbative QCD calculations in next-to-leading order. For most dijet variables studied, these calculations can provide a reasonable description of the data over the full phase space region covered, including the region of very low x. However, large discrepancies at low x and low Q 2 are observed for events with small separation in azimuth between the two highest transverse momentum jets. This region of phase space is described better by predictions based on the CCFM evolution equation, which incorporates k t factorized unintegrated parton distributions. A reasonable description can be also obtained using the Color Dipole Model or models incorporating virtual photon structure., The European Physical Journal C, 33 (4), ISSN:1434-6044, ISSN:1434-6052
Published: 2004
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38. Measurement of anti-deuteron photoproduction and a search for heavy stable charged particles at HERA

Author: K. Gabathuler, D. Wegener, V. Boudry, Caroline Collard, F. Moreau, S. Levonian, A. B. Meyer, J. V. Morris, V. Efremenko, B. Koblitz, Y.R. Coppens, A. Vest, O. Behrendt, S. Vinokurova, R. Lemrani, P. Kostka, I. Sheviakov, S. Schmitt, Gero Flucke, S. Mikocki, H. Spitzer, J. Turnau, M. Kapichine, M. Nozicka, M. Schneider, A. Bunyatyan, John A Coughlan, David South, R. Koutouev, A. Petrukhin, J. Zálešák, B. Delcourt, V. Spaskov, Anna Kropivnitskaya, R. Felst, K. Meier, J. Kückens, S. Schätzel, V. Korbel, K. H. Hiller, R. C. W. Henderson, Peter Robmann, J. Cvach, Murrough Landon, V. Chekelian, V. Lubimov, J. Garvey, V. Nagovizin, Roland Horisberger, A. Valkárová, J. Kennedy, B. Wessling, V. Brisson, S. Gorbounov, P. Höting, B. Stella, E. E. Woehrling, A. M. Fomenko, C. Veelken, Martin Karlsson, D. Meer, L. N. Shtarkov, G. Thompson, C. Gerlich, T. Laštovička, J. Scheins, A. Makankine, P. E. Reimer, Judith Katzy, Leif J. Jönsson, G. Buschhorn, A. Asmone, D. Ozerov, Laurent Schoeffel, P. Van Mechelen, Wolfram Erdmann, R. D. Heuer, S. Schmidt, E. Barrelet, Z. Rurikova, J. E. Olsson, Benoit Roland, G. Ossoskov, W.D. Dau, J. B. Dainton, Dusan Bruncko, R. Weber, T. Klimkovich, W. Yan, Z. Ratiani, B. Naroska, E. Wünsch, H. Henschel, G. G. Winter, J.C. Bizot, B. Leißner, Magnus Hansson, Y.H. Fleming, Alexandre Lebedev, Fabian Zomer, W. Bartel, E. A. De Wolf, Ch. Berger, R. Roosen, N. Loktionova, N. Keller, Dave Sankey, S. Backovic, T. Kluge, T. Greenshaw, Erika Garutti, Anton Babaev, C. Werner, K. Daum, B. Portheault, J. Ferencei, M. Martisikova, J. Naumann, F. Tomasz, G. Knies, I. Herynek, J. G. Contreras, A. Mohamed, C. Pascaud, J. Marks, G. D. Patel, I. Foresti, G. Cozzika, A. Hovhannisyan, G. Nowak, V. Lendermann, V. Schröder, H. Lueders, I. Tsurin, Paul Laycock, E. Malinovski, J. Formánek, Guenter Eckerlin, Claus Kleinwort, André Schöning, C. Duprel, Max Klein, S. Ghazaryan, H. Meyer, D.P. Johnson, Stefan Valkar, N. Malden, L. Goerlich, P. D. Thompson, V. Yeganov, R. Plačakyte, Malte Hildebrandt, Rainer Stamen, Emmanuel Sauvan, G. Grindhammer, J. Dingfelder, M. Ismail, David Milstead, J. Kroseberg, Paul Newman, P. A. Smirnov, H.-B. Bröker, Hannes Jung, A. D.R. Vargas Trevino, Alexander Zhokin, N. Werner, T. Kuhr, S. Mangano, P. Baranov, Wolfgang Lange, C. Vallée, J. Gayler, J. Becker, R. Heremans, A. Nikiforov, Peter Schleper, D. Haidt, E. Perez, H. U. Martyn, I. Morozov, R. Gerhards, Georgios Tsipolitis, M. Fleischer, Eram Rizvi, Pavel Murin, H. Grässler, F. W. Büsser, T. J. Sloan, P.J.W. Faulkner, A.S. Belousov, M. Ibbotson, Sergey Rusakov, P. Truöl, L. Bystritskaya, K. Müller, Christian Schwanenberger, G. Heinzelmann, V. Dodonov, R. Pöschl, G. Weber, U. Straumann, S. Caron, E. Lobodzinska, Bogdan Povh, R. Marshall, F. Sefkow, Laurent Favart, T. Anthonis, H. Zohrabyan, E. E. Elsen, D.K. Nikitin, O. Henshaw, C. Niebuhr, I. R. Kenyon, C. Wissing, T. Berndt, S. Egli, F. Cassol-Brunner, Natasa Raicevic, Thorsten Lux, L. Janauschek, N. Van Remortel, D.P. Brown, J. Haller, Klaus Desch, S. Michine, I. Strauch, Philipp Fleischmann, Stephen Maxfield, J. Stiewe, Y. Soloviev, C. Risler, A. Specka, A. Rimmer, J. Wagner, J. Böhme, F. P. Schilling, Karel Cerny, Andrew Mehta, J. Bracinik, A. Knutsson, N. Gogitidze, A. Uraev, K. Rybicki, Martin Erdmann, C. Gwilliam, M. Wessels, M. Ellerbrock, Christoph Grab, G. Herrera, Bradley Cox, R. Wolf, A. N. Morozov, A. Rostovtsev, M. Gregori, F. Eisele, R. Oganezov, K. Sedlák, D. Utkin, I. Milcewicz, B. Reisert, J. Bähr, Zhen Zhang, Ricardo Lopez-Fernandez, S. Baumgartner, V. Andreev, A. Usik, G. Frising, M. Jacquet, Yves Sirois, Dirk L. Hoffmann, G. Franke, J. Žáček, Hans-Christian Schultz-Coulon, L. Lindfeld, R. Eichler, D. Kant, Katerina Lipka, V. Tchoulakov, Adrian Perieanu, V. Volchinski, V. Jemanov, R. Demirchyan, B. List, A. Aktas, B. Olivier, Xavier Janssen, J-P. Meyer, M.-O. Boenig, Nicolas Berger, M. Beckingham, Matthias Ulrich Mozer, A. Fedotov, Günter Flügge, C. Kiesling, A. De Roeck, E. Tzamariudaki, A. J. Campbell, Pierre Marage, A. Dubak, Y. Vazdik, D. Lüke, M. Peez, Stefania Xella, O. Behnke, Th. Naumann, E. Gabathuler, K. Wacker, L. Lytkin, Cristinel Diaconu, Daniel Pitzl, D. Traynor, L. Hajduk, M. Urban, H1 Collaboration, Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), and H1
Subjects: Physics, Particle physics, Large Hadron Collider, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Nuclear Theory, FOS: Physical sciences, Elementary particle, HERA, 01 natural sciences, Charged particle, 3. Good health, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Deuterium, 0103 physical sciences, Transverse momentum, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Rapidity, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous)
Abstract: The cross section for anti-deuteron photoproduction is measured at HERA at a mean centre-of-mass energy of Wγp=200 GeV in the range 0.2 < p T /M < 0.7 and |y| < 0.4, where M, p T and y are the mass, transverse momentum and rapidity of the anti-deuteron in the HERA laboratory frame, respectively. The numbers of anti-deuterons per event are found to be similar in photoproduction to those in central proton-proton collisions at the CERN ISR but much lower than those in central Au-Au collisions at RHIC. The coalescence parameter B 2, which characterizes the likelihood of anti-deuteron production, is measured in photoproduction to be 0.010±0.002±0.001, which is much higher than in Au-Au collisions at a similar nucleon-nucleon centre-of-mass energy. No significant production of particles heavier than deuterons is observed and upper limits are set on the photoproduction cross sections for such particles., The European Physical Journal C, 36 (4), ISSN:1434-6044, ISSN:1434-6052
Published: 2004

39. Wave equations with energy-dependent potentials

Author: R. J. Lombard, Jiří Mareš, J. Formánek, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and Robert, Suzanne
Subjects: Energy dependent, Physics, [PHYS.NUCL] Physics [physics]/Nuclear Theory [nucl-th], Quantum Physics, endocrine system, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 010308 nuclear & particles physics, FOS: Physical sciences, General Physics and Astronomy, Observable, Wave equation, 01 natural sciences, Interpretation (model theory), Classical mechanics, [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Simple (abstract algebra), 0103 physical sciences, Evolution equation, Quantum Physics (quant-ph), 010306 general physics, Computer Science::Databases, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph], hormones, hormone substitutes, and hormone antagonists
Abstract: We study wave equations with energy dependent potentials. Simple analytical models are found useful to illustrate difficulties encountered with the calculation and interpretation of observables. A formal analysis shows under which conditions such equations can be handled as evolution equation of quantum theory with an energy dependent potential. Once these conditions are met, such theory can be transformed into ordinary quantum theory., 33 pages, 5 tables, 1 figure
Published: 2004

40. Evidence for a narrow anti-charmed baryon state

Author: V. Yeganov, I. Sheviakov, S. Schmitt, F. Moreau, L. Lytkin, S. Levonian, A. B. Meyer, Cristinel Diaconu, J. Zálešák, P. E. Reimer, V. Spaskov, G. G. Winter, J. Kückens, I. Morozov, R. Plačakyt, T. Laštovička, A. Lebedev, K. Daum, David South, M.-O. Boenig, S. Mangano, Stephen Maxfield, L. Bystritskaya, L. Lindfeld, E. Barrelet, Daniel Pitzl, F. Tomasz, G. Knies, O. Henshaw, D. Traynor, J. Žáček, D. Haidt, T. J. Sloan, Eram Rizvi, Dusan Bruncko, Hans-Christian Schultz-Coulon, H. Zohrabyan, Z. Rurikova, R. Eichler, A. Asmone, B. Naroska, E.-E. Woehrling, G. Heinzelmann, V. Dodonov, M. Hildebrandt, J. Stiewe, B. Stella, A. Vest, F. Cassol-Brunner, V. Lubimov, L. Hajduk, Nicolas Berger, I. Milcewicz, T. Kluge, E. A. De Wolf, Ch. Berger, T. Greenshaw, O. Behrendt, Gero Flucke, R. Roosen, M. Kapichine, M. Nozicka, Erika Garutti, M. Urban, S. Vinokurova, S. Caron, Ewelina Lobodzinska, B. Delcourt, R. Lemrani, Anton Babaev, P. Kostka, J. Ferencei, M. Martisikova, J. Naumann, Z. Ratiani, N. Keller, J. Marks, V. Lendermann, Paul Laycock, E. Malinovski, Emmanuel Sauvan, A. Nikiforov, J. G. Contreras, A. Mohamed, Th. Naumann, Y. R. Coppens, Pierre Marage, J. Turnau, Rainer Stamen, V. Schröder, D. Lüke, E. Wünsch, Dave Sankey, G. Grindhammer, S. Schätzel, D.K. Nikitin, I. Herynek, L. N. Shtarkov, Pavel Murin, H. Grässler, M. Ibbotson, Anna Kropivnitskaya, R. Felst, V. Jemanov, Zhen Zhang, Ricardo Lopez-Fernandez, S. Baumgartner, D. Hoffmann, D. Meer, A. Usik, G. Frising, R. Weber, J. E. Olsson, W. Bartel, F. W. Büsser, Judith Katzy, J. Dingfelder, N. Werner, G. D. Patel, D.P. Johnson, N. Malden, C. Wissing, Andrew Mehta, J. Bracinik, J-P. Meyer, T. Berndt, Natasa Raicevic, Y.H. Fleming, Magnus Hansson, E. Gabathuler, K. Wacker, A. Schöning, A. Rostovtsev, J. V. Morris, S. Michine, P. Baranov, J. Formánek, Peter Schleper, P.J.W. Faulkner, A.S. Belousov, Sergey Rusakov, P. Truöl, B. Portheault, A. D.R. Vargas Trevino, E. E. Elsen, E. Perez, R. Gerhards, Thorsten Lux, L. Goerlich, L. Janauschek, N. Van Remortel, P. Höting, N. Gogitidze, R. Pöschl, R. Marshall, M. Wessels, M. Ellerbrock, G. Herrera, Bradley Cox, R. Wolf, C. Duprel, Vincent Boudry, H. U. Martyn, A. N. Morozov, M. Gregori, A. Aktas, I. Strauch, Philipp Fleischmann, B. Olivier, Laurent Schoeffel, Murrough Landon, S. Gorbounov, O. Behnke, T. Kuhr, D. Utkin, B. Reisert, Wolfram Erdmann, B. List, Paul Richard Newman, Grzegorz Nowak, Adrian Perieanu, K. Gabathuler, Peter Robmann, J. Kroseberg, Klaus Desch, Laurent Favart, T. Anthonis, I. Foresti, G. Cozzika, Stefan Valkar, H.-B. Bröker, Hannes Jung, Alexander Zhokin, J. Becker, C. Vallée, Roland Horisberger, A. Valkárová, J. Bähr, A. Bunyatyan, C. Niebuhr, M. Beckingham, D.P. Brown, J. Haller, V. Volchinski, H. Meyer, R. Demirchyan, Martin Karlsson, R. Koutouev, A. Petrukhin, S. Schmidt, Matthias Ulrich Mozer, P. Van Mechelen, A. Fedotov, Xavier Janssen, S. Ghazaryan, R. Heremans, Günter Flügge, A. Rimmer, R. D. Heuer, D. Wegener, Caroline Collard, C. Risler, S. Egli, John A Coughlan, W. Yan, Georgios Tsipolitis, M. Fleischer, C. Kiesling, A. Knutsson, K. Meier, N. Loktionova, A. Hovhannisyan, A. De Roeck, E. Tzamariudaki, A. J. Campbell, Y. Soloviev, S. Backovic, Bogdan Povh, F. Sefkow, B. Wessling, I. Tsurin, K. H. Hiller, A. Makankine, G. Buschhorn, Martin Erdmann, J. Garvey, R. C. W. Henderson, C. Gwilliam, A. M. Fomenko, G. Thompson, H. Lueders, C. Gerlich, D. Kant, C. Veelken, V. Efremenko, Wolfgang Lange, G. Ossoskov, D. Ozerov, B. Koblitz, Claus Kleinwort, A. Specka, J. Gayler, A. Dubak, F. P. Schilling, C. Pascaud, Guenter Eckerlin, Y. Vazdik, P.D. Thompson, M. Schneider, Stefania Xella, K. Rybicki, V. Chekelian, V. Nagovizin, Leif J. Jönsson, S. Mikocki, Benoit Roland, Christoph Grab, Katerina Lipka, H. Henschel, J.C. Bizot, J. Cvach, V. Korbel, T. Klimkovich, V. Tchoulakov, M. Peez, J. Kennedy, V. Brisson, C. Werner, I. R. Kenyon, H. Spitzer, G. Weber, U. Straumann, J. Wagner, J. Böhme, Karel Cerny, A. Uraev, A. Glazov, Max Klein, M. Ismail, David Milstead, F. Zomer, V. Andreev, P. A. Smirnov, Yves Sirois, G. Franke, M. Jacquet, F. Eisele, R. Oganezov, K. Sedlák, J. Scheins, W.D. Dau, J. B. Dainton, B. Leißner, K. Müller, Christian Schwanenberger, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Starita, Sabine, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and H1 Collaboration
Subjects: Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Nuclear Theory, FOS: Physical sciences, Constituent quark, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Invariant mass, 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Resonance, Charge (physics), HERA, Pentaquark, Baryon, High Energy Physics - Phenomenology, High Energy Physics::Experiment, Bar (unit)
Abstract: A narrow resonance in D*- p and D*+ pbar invariant mass combinations is observed in inelastic electron-proton collisions at centre-of-mass energies of 300 GeV and 320 GeV at HERA. The resonance has a mass of 3099 \pm 3 (stat.) \pm 5 (syst.) MeV and a measured Gaussian width of 12 \pm 3 (stat.) MeV, compatible with the experimental resolution. The resonance is interpreted as an anti-charmed baryon with a minimal constituent quark composition of uuddcbar, together with the charge conjugate., 20 pages, 7 figures and 2 tables
Published: 2004

41. [Glutamate receptor dysfunction and psychosis-like behavior in an animal model]

Author: F, St'astný, H, Tejkalová, V, Bubeníková, J, Klaschka, J, Formánek, and E, Frantík
Subjects: Disease Models, Animal, Animals, Newborn, Behavior, Animal, Receptors, Glutamate, Schizophrenia, Animals, Brain, Quinolinic Acid, Rats
Published: 2003

42. Diffractive Photoproduction of J/psi Mesons with Large Momentum Transfer at HERA

Author: A. Aktas, V. Andreev, T. Anthonis, A. Astvatsatourov, A. Babaev, S. Backovic, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, S. Baumgartner, J. Becker, M. Beckingham, A. Beglarian, O. Behnke, O. Behrendt, A. Belousov, Ch. Berger, T. Berndt, J.C. Bizot, J. Böhme, M.-O. Boenig, V. Boudry, J. Bracinik, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, D. Bruncko, F.W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A.J. Campbell, S. Caron, F. Cassol-Brunner, V. Chekelian, D. Clarke, C. Collard, J.G. Contreras, Y.R. Coppens, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J.D. Dowell, A. Dubak, C. Duprel, G. Eckerlin, V. Efremenko, S. Egli, R. Eichler, F. Eisele, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, P. Fleischmann, Y.H. Fleming, G. Flucke, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, G. Frising, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, S. Gorbounov, C. Grab, V. Grabski, H. Grässler, T. Greenshaw, G. Grindhammer, D. Haidt, L. Hajduk, J. Haller, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, H. Henschel, O. Henshaw, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K.H. Hiller, J. Hladký, P. Höting, D. Hoffmann, R. Horisberger, A. Hovhannisyan, M. Ibbotson, M. Jacquet, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, C. Johnson, D.P. Johnson, M.A.S. Jones, H. Jung, D. Kant, M. Kapichine, M. Karlsson, J. Katzy, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, G. Knies, B. Koblitz, S.D. Kolya, V. Korbel, P. Kostka, R. Koutouev, A. Koutov, J. Kroseberg, K. Krüger, J. Kueckens, T. Kuhr, M.P.J. Landon, W. Lange, T. Laštovička, P. Laycock, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, B. List, E. Lobodzinska, N. Loktionova, R. Lopez-Fernandez, V. Lubimov, H. Lueders, S. Lüders, D. Lüke, L. Lytkin, A. Makankine, N. Malden, E. Malinovski, S. Mangano, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, D. Meer, A. Mehta, K. Meier, A.B. Meyer, H. Meyer, J. Meyer, S. Michine, S. Mikocki, D. Milstead, S. Mohrdieck, F. Moreau, A. Morozov, J.V. Morris, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, P.R. Newman, F. Niebergall, C. Niebuhr, D. Nikitin, G. Nowak, M. Nozicka, B. Olivier, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, M. Peez, E. Perez, A. Petrukhin, J.P. Phillips, D. Pitzl, R. Pöschl, B. Povh, N. Raicevic, J. Rauschenberger, P. Reimer, B. Reisert, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, S. Rusakov, K. Rybicki, D.P.C. Sankey, E. Sauvan, S. Schätzel, J. Scheins, F.-P. Schilling, P. Schleper, D. Schmidt, S. Schmidt, S. Schmitt, M. Schneider, 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, H. Spitzer, R. Stamen, B. Stella, J. Stiewe, I. Strauch, U. Straumann, G. Thompson, P.D. Thompson, F. Tomasz, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J.E. Turney, E. Tzamariudaki, A. Uraev, M. Urban, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, A. Vargas Trevino, S. Vassiliev, Y. Vazdik, C. Veelken, A. Vest, A. Vichnevski, V. Volchinski, K. Wacker, J. Wagner, R. Wallny, B. Waugh, G. Weber, R. Weber, D. Wegener, C. Werner, N. Werner, M. Wessels, B. Wessling, M. Winde, G.-G. Winter, Ch. Wissing, E.-E. Woehrling, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, M. zur Nedden, and H1 Collaboration
Subjects: Nuclear and High Energy Physics, High Energy Physics - Experiment (hep-ex), Physique des particules élémentaires, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment, High Energy Physics - Experiment
Abstract: The diffractive photoproduction of J/ψ mesons is measured with the H1 detector at the ep collider HERA using an integrated luminosity of 78 pb -1. The differential cross section dσ(γp → J/ψY)/dt is studied in the range 2 < t < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a function of the photon-proton centre-of-mass energy Wγp in three t intervals, spanning the range 50 < Wγp < 200 GeV. A fast rise of the cross section with Wγp is observed for each t range and the slope for the effective linear Pomeron trajectory is measured to be α′ = -0.0135 ± 0.0074(stat.) ± 0.0051(syst.) GeV-2. The measurements are compared with perturbative QCD models based on BFKL and DGLAP evolution. The data are found to be compatible with s-channel helicity conservation. © 2003 Published by Elsevier B.V., 0, DESY-03-061 / hep-ex/0306013, H1 Collaboration., info:eu-repo/semantics/published
Published: 2003

43. Search for excited electrons at HERA

Author: C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, A. Astvatsatourov, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, S. Baumgartner, J. Becker, M. Beckingham, A. Beglarian, O. Behnke, A. Belousov, Ch. Berger, T. Berndt, J.C. Bizot, J. Böhme, V. Boudry, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, D. Bruncko, F.W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A.J. Campbell, S. Caron, F. Cassol-Brunner, D. Clarke, C. Collard, J.G. Contreras, Y.R. Coppens, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J.D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, P. Fleischmann, Y.H. Fleming, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, G. Frising, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, C. Grab, V. Grabski, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, J. Haller, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K.H. Hiller, J. Hladký, P. Höting, D. Hoffmann, R. Horisberger, A. Hovhannisyan, S. Hurling, M. Ibbotson, Ç. İşsever, M. Jacquet, M. Jaffre, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, C. Johnson, D.P. Johnson, M.A.S. Jones, H. Jung, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, J. Katzy, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, C. Kiesling, P. Kjellberg, M. Klein, C. Kleinwort, T. Kluge, G. Knies, B. Koblitz, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, R. Koutouev, A. Koutov, J. Kroseberg, K. Krüger, T. Kuhr, D. Lamb, M.P.J. Landon, W. Lange, T. Laštovička, P. Laycock, E. Lebailly, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, B. List, E. Lobodzinska, B. Lobodzinski, A. Loginov, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, N. Malden, E. Malinovski, S. Mangano, R. Maraček, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, D. Meer, A. Mehta, K. Meier, A.B. Meyer, H. Meyer, J. Meyer, S. Michine, S. Mikocki, D. Milstead, S. Mohrdieck, M.N. Mondragon, F. Moreau, A. Morozov, J.V. Morris, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, P.R. Newman, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, M. Nozicka, B. Olivier, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, M. Peez, E. Perez, A. Petrukhin, J.P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, J. Rauschenberger, P. Reimer, B. Reisert, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, S. Rusakov, K. Rybicki, D.P.C. Sankey, S. Schätzel, J. Scheins, F.-P. Schilling, P. Schleper, D. Schmidt, S. Schmidt, S. Schmitt, M. Schneider, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H.-C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, B. Stella, J. Stiewe, I. Strauch, U. Straumann, S. Tchetchelnitski, G. Thompson, P.D. Thompson, F. Tomasz, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J.E. Turney, E. Tzamariudaki, A. Uraev, M. Urban, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, A. Vargas Trevino, S. Vassiliev, Y. Vazdik, C. Veelken, A. Vest, A. Vichnevski, K. Wacker, J. Wagner, R. Wallny, B. Waugh, G. Weber, D. Wegener, C. Werner, N. Werner, M. Wessels, G. White, S. Wiesand, T. Wilksen, M. Winde, G.-G. Winter, Ch. Wissing, M. Wobisch, E.-E. Woehrling, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, M. zur Nedden, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, H1 Collaboration, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Detector, Electroweak interaction, FOS: Physical sciences, HERA, Lambda, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Excited state, 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics
Abstract: A search for excited electron (e*) production is described in which the electroweak decays e* → eγ, e* → eZ and e* → v W are considered. The data used correspond to an integrated luminosity of 120 pb -1 taken in e ±p collisions from 1994 to 2000 with the H1 detector at HERA at centre-of-mass energies of 300 and 318 GeV. No evidence for a signal is found. Mass dependent exclusion limits are derived for the ratio of the couplings to the compositeness scale, f/Λ. These limits extend the excluded region to higher masses than has been possible in previous direct searches for excited electrons. © 2002 Published by Elsevier Science B.V., 0, DESY-02-096 /hep-ex/0207038, H1 Collaboration., info:eu-repo/semantics/published
Published: 2002

44. Measurement of Inclusive Jet Cross-Sections in Deep-Inelastic ep Scattering at HERA

Author: C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, A. Astvatsatourov, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, S. Baumgartner, J. Becker, M. Beckingham, A. Beglarian, O. Behnke, C. Beier, A. Belousov, Ch. Berger, T. Berndt, J.C. Bizot, J. Böhme, V. Boudry, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, W. Brückner, D. Bruncko, F.W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A.J. Campbell, T. Carli, S. Caron, F. Cassol-Brunner, D. Clarke, C. Collard, J.G. Contreras, Y.R. Coppens, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J.D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, P. Fleischmann, Y.H. Fleming, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, G. Frising, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, C. Grab, V. Grabski, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, J. Haller, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K.H. Hiller, J. Hladký, P. Höting, D. Hoffmann, R. Horisberger, A. Hovhannisyan, S. Hurling, M. Ibbotson, Ç. İşsever, M. Jacquet, M. Jaffre, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, C. Johnson, D.P. Johnson, M.A.S. Jones, H. Jung, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, S. Kermiche, C. Kiesling, P. Kjellberg, M. Klein, C. Kleinwort, T. Kluge, G. Knies, B. Koblitz, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, R. Koutouev, A. Koutov, J. Kroseberg, K. Krüger, T. Kuhr, T. Kurča, D. Lamb, M.P.J. Landon, W. Lange, T. Laštovička, P. Laycock, E. Lebailly, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, A. Loginov, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, N. Malden, E. Malinovski, I. Malinovski, S. Mangano, R. Maraček, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, D. Meer, A. Mehta, K. Meier, A.B. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, S. Mikocki, D. Milstead, S. Mohrdieck, M.N. Mondragon, F. Moreau, A. Morozov, J.V. Morris, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, G. Nellen, P.R. Newman, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, M. Peez, E. Perez, A. Petrukhin, J.P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, S. Rusakov, K. Rybicki, D.P.C. Sankey, S. Schätzel, J. Scheins, F.-P. Schilling, P. Schleper, D. Schmidt, S. Schmidt, S. Schmitt, M. Schneider, L. Schoeffel, A. Schöning, T. Schörner-Sadenius, V. Schröder, H.-C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, B. Stella, J. Stiewe, I. Strauch, U. Straumann, M. Swart, S. Tchetchelnitski, G. Thompson, P.D. Thompson, F. Tomasz, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J.E. Turney, E. Tzamariudaki, S. Udluft, A. Uraev, M. Urban, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, S. Vassiliev, Y. Vazdik, A. Vest, A. Vichnevski, K. Wacker, J. Wagner, R. Wallny, B. Waugh, G. Weber, D. Wegener, C. Werner, N. Werner, M. Wessels, G. White, S. Wiesand, T. Wilksen, M. Winde, G.-G. Winter, Ch. Wissing, M. Wobisch, E.-E. Woehrling, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, M. zur Nedden, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, H1 Collaboration, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), Photon, Proton, 010308 nuclear & particles physics, Scattering, FOS: Physical sciences, Perturbative QCD, HERA, Jet (particle physics), 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pseudorapidity, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment
Abstract: A measurement of inclusive jet cross-sections in deep-inelastic ep scattering at HERA is presented based on data with an integrated luminosity of 21.1 pb^-1. The measurement is performed for photon virtualities Q^2 between 5 and 100 GeV^2, differentially in Q^2, in the jet transverse energy E_T, in E_T^2/Q^2 and in the pseudorapidity eta_lab. With the renormalization scale mu_R = E_T, perturbative QCD calculations in next-to-leading order (NLO) give a good description of the data in most of the phase space. Significant discrepancies are observed only for jets in the proton beam direction with E_T below 20 GeV and Q^2 below 20 GeV^2. This corresponds to the region in which NLO corrections are largest and further improvement of the calculations is thus of particular interest., 20 pages, 4 figures and 3 tables
Published: 2002

45. Search for excited neutrinos at HERA

Author: C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, A. Astvatsatourov, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, P. Bate, J. Becker, A. Beglarian, O. Behnke, C. Beier, A. Belousov, T. Benisch, Ch. Berger, T. Berndt, J.C. Bizot, J. Boehme, V. Boudry, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, W. Brückner, D. Bruncko, J. Bürger, F.W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A.J. Campbell, J. Cao, S. Caron, F. Cassol-Brunner, D. Clarke, B. Clerbaux, C. Collard, J.G. Contreras, Y.R. Coppens, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J.D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, Y.H. Fleming, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Goldberg, C. Grab, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, J. Haller, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K.H. Hiller, J. Hladký, P. Höting, D. Hoffmann, R. Horisberger, S. Hurling, M. Ibbotson, Ç. İşsever, M. Jacquet, M. Jaffre, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, C. Johnson, D.P. Johnson, M.A.S. Jones, H. Jung, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, S. Kermiche, C. Kiesling, P. Kjellberg, M. Klein, C. Kleinwort, T. Kluge, G. Knies, B. Koblitz, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, R. Koutouev, A. Koutov, H. Krehbiel, J. Kroseberg, K. Krüger, A. Küpper, T. Kuhr, T. Kurča, R. Lahmann, D. Lamb, M.P.J. Landon, W. Lange, T. Laštovička, P. Laycock, E. Lebailly, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, A. Loginov, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, H. Mahlke-Krüger, N. Malden, E. Malinovski, I. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, D. Meer, A. Mehta, K. Meier, A.B. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, S. Mikocki, D. Milstead, T. Mkrtchyan, R. Mohr, S. Mohrdieck, M.N. Mondragon, F. Moreau, A. Morozov, J.V. Morris, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, G. Nellen, P.R. Newman, T.C. Nicholls, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, M. Peez, E. Perez, J.P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, K. Rabbertz, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, D. Reyna, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, S. Rusakov, K. Rybicki, D.P.C. Sankey, J. Scheins, F.-P. Schilling, P. Schleper, D. Schmidt, S. Schmidt, S. Schmitt, M. Schneider, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H.-C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, B. Stella, J. Stiewe, U. Straumann, M. Swart, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, G. Thompson, P.D. Thompson, N. Tobien, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J.E. Turney, E. Tzamariudaki, S. Udluft, M. Urban, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, S. Vassiliev, Y. Vazdik, A. Vichnevski, K. Wacker, R. Wallny, B. Waugh, G. Weber, M. Weber, D. Wegener, C. Werner, M. Werner, N. Werner, G. White, S. Wiesand, T. Wilksen, M. Winde, G.-G. Winter, Ch. Wissing, M. Wobisch, E.-E. Woehrling, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, M. zur Nedden, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Kerec, Hélène, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and H1 Collaboration
Subjects: Coupling, Physics, Nuclear and High Energy Physics, Gauge boson, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, HERA, Lambda, 01 natural sciences, Luminosity, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Excited state, 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, Neutrino, 010306 general physics
Abstract: We present a search for excited neutrinos using e-p data taken by the H1 experiment at HERA at a center-of-mass energy of 318 GeV with an integrated luminosity of 15 pb-1. No evidence for excited neutrino production is found. Mass dependent exclusion limits are determined for the ratio of the coupling to the compositeness scale, f/A, independently of the relative couplings to the SU(2) and U(1) gauge bosons. These limits extend the excluded region to higher masses than has been possible in previous searches at other colliders. © 2002 Elsevier Science B.V. All rights reserved., 0, 400 auteurs, DESY 01-145 / hep-ex/0110037, H1 Collaboration., info:eu-repo/semantics/published
Published: 2002

46. Three-Jet Production in Deep-Inelastic Scattering at HERA

Author: C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, A. Astvatsatourov, I. Ayyaz, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, P. Bate, A. Beglarian, O. Behnke, C. Beier, A. Belousov, T. Benisch, Ch. Berger, T. Berndt, J.C. Bizot, V. Boudry, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, W. Brückner, P. Bruel, D. Bruncko, J. Bürger, F.W. Büsser, A. Bunyatyan, H. Burkhardt, A. Burrage, G. Buschhorn, A.J. Campbell, J. Cao, T. Carli, S. Caron, D. Clarke, B. Clerbaux, C. Collard, J.G. Contreras, Y.R. Coppens, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J.D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, Y.H. Fleming, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, J.M. Foster, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Goldberg, C. Goodwin, C. Grab, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, W.J. Haynes, B. Heinemann, G. Heinzelmann, A. Heister, R.C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K.H. Hiller, J. Hladký, P. Höting, D. Hoffmann, R. Horisberger, S. Hurling, M. Ibbotson, Ç. İşsever, M. Jacquet, M. Jaffre, L. Janauschek, D.M. Jansen, X. Janssen, V. Jemanov, L. Jönsson, D.P. Johnson, M.A.S. Jones, H. Jung, H.K. Kästli, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, S. Kermiche, C. Kiesling, P. Kjellberg, M. Klein, C. Kleinwort, G. Knies, B. Koblitz, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, R. Koutouev, A. Koutov, M.W. Krasny, H. Krehbiel, J. Kroseberg, K. Krüger, A. Küpper, T. Kuhr, T. Kurča, R. Lahmann, D. Lamb, M.P.J. Landon, W. Lange, T. Laštovička, P. Laycock, E. Lebailly, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, A. Loginov, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, N. Magnussen, H. Mahlke-Krüger, N. Malden, E. Malinovski, I. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, D. Meer, A. Mehta, K. Meier, P. Merkel, A.B. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, S. Mikocki, D. Milstead, T. Mkrtchyan, R. Mohr, S. Mohrdieck, M.N. Mondragon, F. Moreau, A. Morozov, J.V. Morris, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, G. Nellen, P.R. Newman, T.C. Nicholls, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, T. Nunnemann, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, M. Peez, E. Perez, J.P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, K. Rabbertz, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, D. Reyna, S. Riess, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, C. Royon, S. Rusakov, K. Rybicki, D.P.C. Sankey, J. Scheins, F.-P. Schilling, P. Schleper, D. Schmidt, S. Schmitt, M. Schneider, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H.-C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, V. Solochenko, Y. Soloviev, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, J. Steinhart, B. Stella, A. Stellberger, J. Stiewe, U. Straumann, W. Struczinski, M. Swart, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, G. Thompson, P.D. Thompson, N. Tobien, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J.E. Turney, E. Tzamariudaki, S. Udluft, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, S. Vassiliev, Y. Vazdik, A. Vichnevski, K. Wacker, R. Wallny, T. Walter, B. Waugh, G. Weber, M. Weber, D. Wegener, M. Werner, N. Werner, G. White, S. Wiesand, T. Wilksen, M. Winde, G.-G. Winter, Ch. Wissing, M. Wobisch, H. Wollatz, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, M. zur Nedden, Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and H1 Collaboration
Subjects: Quantum chromodynamics, Physics, Nuclear and High Energy Physics, education.field_of_study, Particle physics, 010308 nuclear & particles physics, Scattering, Astrophysics::High Energy Astrophysical Phenomena, Population, FOS: Physical sciences, Perturbative QCD, HERA, Jet (particle physics), Deep inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Cross section (physics), 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, 010306 general physics, education
Abstract: Three-jet production is studied for the first time in deep-inelastic positron-proton scattering. The measurement carried out with the H1 detector at HERA covers a large range of four-momentum transfer squared 5 < Q^2 < 5000 GeV^2 and invariant three-jet masses 25 < M_(3jet) < 140 GeV. Jets are defined by the inclusive k_T algorithm in the Breit frame. The size of the three-jet cross section and the ratio of the three-jet to the dijet cross section R_(3/2) are described over the whole phase space by the predictions of perturbative QCD in next-to-leading order. The shapes of angular jet distributions deviate significantly from a uniform population of the available phase space but are well described by the QCD calculation., 17 pages, 5 figures, 1 table
Published: 2001

47. A Search for leptoquark bosons in e- p collisions at HERA

Author: C. Adloff, V. Andreev, B. Andrieu, T. Anthonis, V. Arkadov, A. Astvatsatourov, A. Babaev, J. Bähr, P. Baranov, E. Barrelet, W. Bartel, P. Bate, J. Becker, A. Beglarian, O. Behnke, C. Beier, A. Belousov, T. Benisch, Ch. Berger, T. Berndt, J.C. Bizot, J. Boehme, V. Boudry, W. Braunschweig, V. Brisson, H.-B. Bröker, D.P. Brown, W. Brückner, D. Bruncko, J. Bürger, F.W. Büsser, A. Bunyatyan, A. Burrage, G. Buschhorn, L. Bystritskaya, A.J. Campbell, J. Cao, S. Caron, F. Cassol-Brunner, D. Clarke, B. Clerbaux, C. Collard, J.G. Contreras, Y.R. Coppens, J.A. Coughlan, M.-C. Cousinou, B.E. Cox, G. Cozzika, J. Cvach, J.B. Dainton, W.D. Dau, K. Daum, M. Davidsson, B. Delcourt, N. Delerue, R. Demirchyan, A. De Roeck, E.A. De Wolf, C. Diaconu, J. Dingfelder, P. Dixon, V. Dodonov, J.D. Dowell, A. Droutskoi, A. Dubak, C. Duprel, G. Eckerlin, D. Eckstein, V. Efremenko, S. Egli, R. Eichler, F. Eisele, E. Eisenhandler, M. Ellerbrock, E. Elsen, M. Erdmann, W. Erdmann, P.J.W. Faulkner, L. Favart, A. Fedotov, R. Felst, J. Ferencei, S. Ferron, M. Fleischer, Y.H. Fleming, G. Flügge, A. Fomenko, I. Foresti, J. Formánek, G. Franke, E. Gabathuler, K. Gabathuler, J. Garvey, J. Gassner, J. Gayler, R. Gerhards, C. Gerlich, S. Ghazaryan, L. Goerlich, N. Gogitidze, M. Goldberg, C. Grab, H. Grässler, T. Greenshaw, G. Grindhammer, T. Hadig, D. Haidt, L. Hajduk, J. Haller, W.J. Haynes, B. Heinemann, G. Heinzelmann, R.C.W. Henderson, S. Hengstmann, H. Henschel, R. Heremans, G. Herrera, I. Herynek, M. Hildebrandt, M. Hilgers, K.H. Hiller, J. Hladký, P. Höting, D. Hoffmann, R. Horisberger, S. Hurling, M. Ibbotson, Ç. İşsever, M. Jacquet, M. Jaffre, L. Janauschek, X. Janssen, V. Jemanov, L. Jönsson, C. Johnson, D.P. Johnson, M.A.S. Jones, H. Jung, D. Kant, M. Kapichine, M. Karlsson, O. Karschnick, F. Keil, N. Keller, J. Kennedy, I.R. Kenyon, S. Kermiche, C. Kiesling, P. Kjellberg, M. Klein, C. Kleinwort, T. Kluge, G. Knies, B. Koblitz, S.D. Kolya, V. Korbel, P. Kostka, S.K. Kotelnikov, R. Koutouev, A. Koutov, H. Krehbiel, J. Kroseberg, K. Krüger, A. Küpper, T. Kuhr, T. Kurča, R. Lahmann, D. Lamb, M.P.J. Landon, W. Lange, T. Laštovička, P. Laycock, E. Lebailly, A. Lebedev, B. Leißner, R. Lemrani, V. Lendermann, S. Levonian, M. Lindstroem, B. List, E. Lobodzinska, B. Lobodzinski, A. Loginov, N. Loktionova, V. Lubimov, S. Lüders, D. Lüke, L. Lytkin, H. Mahlke-Krüger, N. Malden, E. Malinovski, I. Malinovski, R. Maraček, P. Marage, J. Marks, R. Marshall, H.-U. Martyn, J. Martyniak, S.J. Maxfield, D. Meer, A. Mehta, K. Meier, A.B. Meyer, H. Meyer, J. Meyer, P.-O. Meyer, S. Mikocki, D. Milstead, T. Mkrtchyan, R. Mohr, S. Mohrdieck, M.N. Mondragon, F. Moreau, A. Morozov, J.V. Morris, K. Müller, P. Murı́n, V. Nagovizin, B. Naroska, J. Naumann, Th. Naumann, G. Nellen, P.R. Newman, T.C. Nicholls, F. Niebergall, C. Niebuhr, O. Nix, G. Nowak, J.E. Olsson, D. Ozerov, V. Panassik, C. Pascaud, G.D. Patel, M. Peez, E. Perez, J.P. Phillips, D. Pitzl, R. Pöschl, I. Potachnikova, B. Povh, K. Rabbertz, G. Rädel, J. Rauschenberger, P. Reimer, B. Reisert, D. Reyna, C. Risler, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, S. Rusakov, K. Rybicki, D.P.C. Sankey, J. Scheins, F.-P. Schilling, P. Schleper, D. Schmidt, S. Schmidt, S. Schmitt, M. Schneider, L. Schoeffel, A. Schöning, T. Schörner, V. Schröder, H.-C. Schultz-Coulon, C. Schwanenberger, K. Sedlák, F. Sefkow, V. Shekelyan, I. Sheviakov, L.N. Shtarkov, Y. Sirois, T. Sloan, P. Smirnov, Y. Soloviev, D. South, V. Spaskov, A. Specka, H. Spitzer, R. Stamen, B. Stella, J. Stiewe, U. Straumann, M. Swart, M. Taševský, V. Tchernyshov, S. Tchetchelnitski, G. Thompson, P.D. Thompson, N. Tobien, D. Traynor, P. Truöl, G. Tsipolitis, I. Tsurin, J. Turnau, J.E. Turney, E. Tzamariudaki, S. Udluft, M. Urban, A. Usik, S. Valkár, A. Valkárová, C. Vallée, P. Van Mechelen, S. Vassiliev, Y. Vazdik, A. Vichnevski, K. Wacker, R. Wallny, B. Waugh, G. Weber, M. Weber, D. Wegener, C. Werner, M. Werner, N. Werner, G. White, S. Wiesand, T. Wilksen, M. Winde, G.-G. Winter, Ch. Wissing, M. Wobisch, E.-E. Woehrling, E. Wünsch, A.C. Wyatt, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, F. Zomer, J. Zsembery, M. zur Nedden, Laboratoire Leprince-Ringuet (LLR), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), H1, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Kerec, Hélène, and H1 Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, HERA, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Physique des particules élémentaires, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Leptoquark, High Energy Physics::Experiment, 010306 general physics, Boson
Abstract: A search for scalar and vector leptoquarks coupling to first generation fermions is performed in the HI experiment at the ep collider HERA. The analysis uses e-p data collected in 1998 and 1999 at a centre-of-mass energy of 320 GeV, corresponding to an integrated luminosity of ∼ 15 pb-1. No evidence for the direct production of such particles is found in a data sample with a large transverse momentum final state electron or with large missing transverse momentum, and constraints on leptoquark models are established. For a Yukawa coupling of electromagnetic strength leptoquarks are excluded for masses up to ∼ 290 GeV. This analysis complements the leptoquark searches performed previously using data collected whilst HERA was operating with positrons instead of electrons. © 2001 Elsevier Science B.V. All rights reserved., 0, SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2001

48. Elastic and dissociation scattering of halo nuclei

Author: J. Formánek, R. J. Lombard, J.-P. Maillet, Institut de Physique Nucléaire d'Orsay (IPNO), and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Physics, Elastic scattering, Nuclear and High Energy Physics, Phonon scattering, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], 010308 nuclear & particles physics, Scattering, Gaussian, 01 natural sciences, Dissociation (chemistry), Computational physics, symbols.namesake, 0103 physical sciences, symbols, Halo, Atomic physics, 010306 general physics, Wave function, Glauber
Abstract: The Glauber model for two-body scattering is applied to elastic and dissociation scattering of single-neutron halo nuclei. We give estimates of the relative importance of the double scattering contributions. They slowly decrease with the increasing size of the halo wavefunction, but are never negligible in practical cases. We propose an efficient expansion of these terms allowing us to propose a method for performing accurate analysis of experimental data. The method is valid for both elastic scattering and dissociation. Finally, on the same footing, we discuss the parallel momentum distribution obtained from inclusive dissociation experiments. Most of our results are based on Gaussian parametrizations but they are expected to remain valid in a more general framework.
Published: 1999

49. Energy cost of running, cycling and swimming in young triathletes of both sexes

Author: J. Formánek, V. Bunc, J. Heller, and J. Horcic
Subjects: Animal science, Energy cost, Environmental science, Cycling
Abstract: Bunc V., Horcic J., Heller J., Formánek J. Energy cost of running, cycling and swimming in young triathletes of both sexes. In: Les Cahiers de l'INSEP, n°24, 1999. 2e Congrès international de triathlon de l’INSEP – 2nd INSEP international triathlon Congress pp. 301-305.
Published: 1999

50. Kinetics of HR and La concentration in blood during a triathlon race in young triathletes

Author: J. Formánek, J. Heller, J. Horcic, V. Bunc, and M. Belska
Subjects: Race (biology), business.industry, Medicine, Physiology, business
Abstract: Horcic J., Bunc V., Heller J., Belska M., Formánek J. Kinetics of HR and La concentration in blood during a triathlon race in young triathletes. In: Les Cahiers de l'INSEP, n°24, 1999. 2e Congrès international de triathlon de l’INSEP – 2nd INSEP international triathlon Congress pp. 356-358.
Published: 1999

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