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Measurement of the Inclusive ep^{+-} Scattering Cross Section at High Inelasticity y and of the Structure Function FL

F.D. Aaron C. Alexa V. Andreev S. Backovic A. Baghdasaryan S. Baghdasaryan E. Barrelet 1 W. Bartel O. Behrend P. Belov K. Begzsuren A. Belousov J.C. Bizot 2 V. Boudry 3 I. Bozovic-Jelisavcic J. Bracinik G. Brandt M. Brinkmann V. Brisson 2 D. Britzger D. Bruncko A. Bunyatyan G. Buschhorn A. Bylinkin L. Bystritskaya A.J. Campbell K.B. Cantun Avila F. Ceccopieri K. Cerny V. Cerny V. Chekelian A. Cholewa J.G. Contreras J.A. Coughlan J. Cvach J.B. Dainton K. Daum B. Delcourt 2 J. Delvax E.A. de Wolf C. Diaconu 4 M. Dobre V. Dodonov A. Dossanov A. Dubak G. Eckerlin S. Egli A. Eliseev E. Elsen L. Favart A. Fedotov R. Felst J. Feltesse 5 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. Hildebrandt36 K.H. Hiller D. Hoffmann 4 R. Horisberger T. Hreus F. Huber M. Jacquet 2 X. Janssen L. J¨onsson A.W. Jun H. Jung M. Kapichine J. Katzy I.R. Kenyon C. Kiesling M. Klein C. Kleinwort T. Kluge A. Knutsson R. Kogler P. Kostka M. Kraemer J. Kretzschmar K. Kr¨uger K. Kutak M.P.J. Landon W. Lange G. Lastovicka-Medin P. Laycock A. Lebedev V. Lendermann S. Levonian K. Lipka B. List J. List N. Loktionova 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 3 A. Morozov J.V. Morris M.U. Mozer M. Mudrinic K. M¨uller Th. Naumann P.R. Newman C. Niebuhr A. Nikiforov D. Nikitin G. Nowak K. Nowak J.E. Olsson S. Osman D. Ozerov P. Pahl V. Palichik I. Panagouliasl M. Pandurovic Th. Papadopouloul C. Pascaud 2 G.D. Patel Emile Perez 5 A. Petrukhin I. Picuric S. Piec H. Pirumov D. Pitzl R. Plaˇcakyté 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. S Alek D.P.C. Sankey M. Sauter E. Sauvan 4 S. Schmitt L. Schoeffel 5 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 3 Z. Staykova M. Steder B. Stella G. Stoicea U. Straumann T. Sykora P.D. Thompson T. Toll T.H. Tran 2 D. Traynor P. Truö I. Tsakov B. Tseepeldorj I. Tsurin J. Turnau K. Urban A. Valk'Arova Corentin Vallée 4 P. van Mechelen A. Vargas Y. Vazdik M. von den Driesch D. Wegener E. Wünsch J. Žáček J. Zalesak Zhiqing Zhang 2 A. Zhokin H. Zohrabyan F. Zomer 2
Abstract : A measurement is presented of the inclusive neutral current e\pm p scattering cross section using data collected by the H1 experiment at HERA during the years 2003 to 2007 with proton beam energies Ep of 920, 575, and 460 GeV. The kinematic range of the measurement covers low absolute four-momentum transfers squared, 1.5 GeV2 < Q2 < 120 GeV2, small values of Bjorken x, 2.9 \cdot 10-5 < x < 0.01, and extends to high inelasticity up to y = 0.85. The structure function FL is measured by combining the new results with previously published H1 data at Ep = 920 GeV and Ep = 820 GeV. The new measurements are used to test several phenomenological and QCD models applicable in this low Q2 and low x kinematic domain.
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F.D. Aaron, C. Alexa, V. Andreev, S. Backovic, A. Baghdasaryan, et al.. Measurement of the Inclusive ep^{+-} Scattering Cross Section at High Inelasticity y and of the Structure Function FL. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2011, 71, pp.1579. ⟨10.1140/epjc/s10052-011-1579-4⟩. ⟨in2p3-00560201⟩

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