Year: 2011
Type: article
Abstract: First measurements are presented of the diffractive cross section σ ep→eXY at centre-of-mass energies $\sqrt{s}$ of 225 and $252\mathrm {\;GeV}$ , together with a precise new measurement at $\sqrt{s}$ of $319\mathrm {\;GeV}$ , using data taken with the H1 detector in the years 2006 and 2007. Together with previous H1 data at $\sqrt{s}$ of $301\mathrm {\;GeV}$ , the measurements are used to extract the diffractive longitudinal structure function $F_{L}^{D}$ in the range of photon virtualities $4.0 \leq Q^{2} \leq 44.0\mathrm {\;GeV}^{2}$ and fractional proton longitudinal momentum loss 5×10−4≤x ℙ≤3×10−3. The measured $F_{L}^{D}$ is compared with leading twist predictions based on diffractive parton densities extracted in NLO QCD fits to previous measurements of diffractive Deep-Inelastic Scattering and with a model which additionally includes a higher twist contribution derived from a colour dipole approach. The ratio of the diffractive cross section induced by longitudinally polarised photons to that for transversely polarised photons is extracted and compared with the analogous quantity for inclusive Deep-Inelastic Scattering.
Source: The European Physical Journal C
Authors: F. D. Aaron, C. Alexa, V. Andreev, S. Backovic, A. Baghdasaryan, S. Baghdasaryan, E. Barrelet, W. Bartel, K. Begzsuren, A. Belousov, P. Belov, J. C. Bizot, V. Boudry, I. Bozovic-Jelisavcic, J. Bracinik, G. Brandt, M. Brinkmann, V. Brisson, D. Britzger, D. Bruncko, A. Bunyatyan, G. Buschhorn, L. Bystritskaya, A. J. Campbell, K. B. Cantun Avila, F. Ceccopieri, K. Cerny, V. Cerny, V. Chekelian, J. G. Contreras, J. A. Coughlan, J. Cvach, J. B. Dainton, K. Daum, B. Delcourt, J. Delvax, E. A. De Wolf, C. Diaconu, M. Dobre, V. Dodonov, A. Dossanov, A. Dubak, G. Eckerlin, S. Egli, A. Eliseev, E. Elsen, L. Favart, A. Fedotov, R. Felst, J. Feltesse, J. Ferencei, D.-J. Fischer, M. Fleischer, A. Fomenko, E. Gabathuler, J. Gayler, S. Ghazaryan, A. Glazov, L. Goerlich, N. Gogitidze, M. Gouzevitch, C. Grab, A. Grebenyuk, T. Greenshaw, B. R. Grell, G. Grindhammer, S. Habib, D. Haidt, C. Helebrant, R. C. W. Henderson, E. Hennekemper, H. Henschel, M. Herbst, G. Herrera, M. Hildebrandt, K. H. Hiller, D. Hoffmann, R. Horisberger, T. Hreus, F. Huber, M. Jacquet, X. Janssen, L. Jönsson, H. Jung, M. Kapichine, I. R. Kenyon, C. Kiesling, M. Klein, C. Kleinwort, T. Kluge, R. Kogler, P. Kostka, M. Krämer, J. Kretzschmar, K. Krüger, M. P. J. Landon, W. Lange, G. Laštovička-Medin, P. Laycock, A. Lebedev, V. Lendermann, S. Levonian, K. Lipka, B. List, J. List, R. Lopez-Fernandez, V. Lubimov, A. Makankine, E. Malinovski, P. Marage, H.-U. Martyn, S. J. Maxfield, A. Mehta, A. B. Meyer, H. Meyer, J. Meyer, S. Mikocki, I. Milcewicz-Mika, F. Moreau, A. Morozov, J. V. Morris, M. Mudrinic, K. Müller, Th. Naumann, P. R. Newman, C. Niebuhr, D. Nikitin, G. Nowak, K. Nowak, J. E. Olsson, D. Ozerov, P. Pahl, V. Palichik, I. Panagoulias, M. Pandurovic, Th. Papadopoulou, C. Pascaud, G. D. Patel, E. Perez, A. Petrukhin, I. Picuric, S. Piec, H. Pirumov, D. Pitzl, R. Plačakytė, B. Pokorny, R. Polifka, B. Povh, V. Radescu, N. Raicevic, T. Ravdandorj, P. Reimer, E. Rizvi, P. Robmann, R. Roosen, A. Rostovtsev, M. Rotaru, J. E. Ruiz Tabasco, S. Rusakov, D. Šálek, D. P. C. Sankey, M. Sauter, E. Sauvan, S. Schmitt, L. Schoeffel, A. Schöning, H.-C. Schultz-Coulon, F. Sefkow, L. N. Shtarkov, S. Shushkevich, T. Sloan, I. Smiljanic, Y. Soloviev, P. Sopicki, D. South, V. Spaskov, A. Specka, Z. Staykova, M. Steder, B. Stella, G. Stoicea, U. Straumann, T. Sykora, P. D. Thompson, T. Toll, T. H. Tran, D. Traynor, P. Truöl, I. Tsakov, B. Tseepeldorj, J. Turnau, K. Urban, A. Valkárová, C. Vallée, P. Van Mechelen, Y. Vazdik, D. Wegener, E. Wünsch, J. Žáček, J. Zálešák, Z. Zhang, A. Zhokin, H. Zohrabyan, F. Zomer
Institutions: Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering, P.N. Lebedev Physical Institute of the Russian Academy of Sciences, University of Montenegro, A. Alikhanyan National Laboratory, Centre National de la Recherche Scientifique, Laboratoire de Physique Nucléaire et de Hautes Énergies, Institut National de Physique Nucléaire et de Physique des Particules, Université Paris Diderot, Université Pierre-et-Marie-Curie, Deutsches Elektronen-Synchrotron DESY, Mongolian Academy of Sciences, Institute of Physics and Technology, Université Paris-Sud, École Polytechnique, University of Belgrade, Vinča Institute of Nuclear Sciences, University of Birmingham, Slovak Academy of Sciences, Institute of Experimental Physics of the Slovak Academy of Sciences, Max Planck Institute for Nuclear Physics, Max Planck Institute for Physics, Institute for Theoretical and Experimental Physics, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, University of Antwerp, Interuniversity Institute for High Energies, Charles University, Rutherford Appleton Laboratory, Czech Academy of Sciences, FZU - Institute of Physics of the Czech Academy of Sciences, University of Liverpool, University of Wuppertal, Aix-Marseille Université, Centre de physique des particules de Marseille, Universität Hamburg, Paul Scherrer Institute, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Institut de Recherche sur les Lois Fondamentales de l'Univers, Institute of Nuclear Physics, Polish Academy of Sciences, ETH Zurich, Lancaster University, Heidelberg University, Lund University, Joint Institute for Nuclear Research, Queen Mary University of London, RWTH Aachen University, University of Zurich, Roma Tre University, Istituto Nazionale di Fisica Nucleare, Sezione di Roma Tre, Institute for Nuclear Research and Nuclear Energy, TU Dortmund University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid:
Funders: National Science Foundation, CERN, Deutsche Forschungsgemeinschaft, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Russian Foundation for Basic Research, Bundesministerium für Bildung und Forschung, Fonds De La Recherche Scientifique - FNRS, Fonds Wetenschappelijk Onderzoek, Consejo Nacional de Ciencia y Tecnología, Autoritatea Natională pentru Cercetare Stiintifică, Vedecká Grantová Agentúra MŠVVaŠ SR a SAV, Vlaamse regering, Science and Technology Facilities Council, Deutsches Elektronen-Synchrotron, European Social Fund
Awards: Verbundprojekt HERA: Analyse der Daten vom H1- und ZEUS-Detektor, Zvýšenie selektivity rozptýlených elektrónov v ep zrážkach na urýchľovači HERA v oblasti veľkých hodnôt inelasticity pre meranie pozdĺžnej štruktúrnej funkcie protónu FL a analýza údajov z ep zrážok pri vysokej svietivosti, G4020409587, G6195709611, Verbundprojekt HERA: Experimente zur Elektron-Proton Streuung bei HERA, Verbundprojekt: Physik mit dem H1-Detektor am HERA II Elektron/Positron-Proton Speicherring, Verbundprojekt: FSP 101 - ATLAS: Untersuchung von Proton-Proton-Wechselwirkungen mit dem ATLAS Detektor am LHC und Entwicklung eines Level-1 Spurtriggers für den SLHC
OpenAlex ID: W2166853764