Measurement of Neutral and Charged Current Cross Sections in Electron-Proton Collisions at High H1 Collaboration

The inclusive single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA, in the range of four-momentum transfer squared between and GeV , and Bjorken between and . The data were taken in 1998 and 1999 with a centre-of-mass energy of 320 GeV and correspond to an integrated luminosity of 16.4 . The data are compared with recent measurements of the inclusive neutral and charged current cross sections. For ! " # $ &%('*) clear evidence is observed for an asymmetry between and neutral current scattering and the generalised structure function ,+ -/. is extracted for the first time at HERA. A fit to the charged current data is used to extract a value for the 0 boson propagator mass. The data are found to be in good agreement with Standard Model predictions. To be submitted to Eur. Phys. J. C C. Adloff . . , V. Andreev , B. Andrieu , T. Anthonis , V. Arkadov . , A. Astvatsatourov . , I. Ayyaz , A. Babaev . , J. 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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 , 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 , 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 . . , D. Schmidt , S. Schmitt , 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 , 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 . , I. Tsurin . , J. Turnau , J.E. Turney , E. Tzamariudaki , S. Udluft , A. Usik , 1 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 . , 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 , and M. zur Nedden I. Physikalisches Institut der RWTH, Aachen, Germany III. Physikalisches Institut der RWTH, Aachen, Germany . School of Physics and Space Research, University of Birmingham, Birmingham, UK Inter-University Institute for High Energies ULB-VUB, Brussels; Universitaire Instelling Antwerpen, Wilrijk; Belgium Rutherford Appleton Laboratory, Chilton, Didcot, UK Institute for Nuclear Physics, Cracow, Poland Institut für Physik, Universität Dortmund, Dortmund, Germany Joint Institute for Nuclear Research, Dubna, Russia CEA, DSM/DAPNIA, CE-Saclay, Gif-sur-Yvette, France DESY, Hamburg, Germany II. Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany Max-Planck-Institut für Kernphysik, Heidelberg, Germany . Physikalisches Institut, Universität Heidelberg, Heidelberg, Germany Kirchhoff-Institut für Physik, Universität Heidelberg, Heidelberg, Germany Institut für experimentelle und angewandte Kernphysik, Universität Kiel, Kiel, Germany Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovak Republic School of Physics and Chemistry, University of Lancaster, Lancaster, UK Department of Physics, University of Liverpool, Liverpool, UK Queen Mary and Westfield College, London, UK Physics Department, University of Lund, Lund, Sweden Physics Department, University of Manchester, Manchester, UK CPPM, CNRS/IN2P3 Univ Mediterranee, Marseille France . Institute for Theoretical and Experimental Physics, Moscow, Russia Lebedev Physical Institute, Moscow, Russia Max-Planck-Institut für Physik, München, Germany LAL, Université de Paris-Sud, IN2P3-CNRS, Orsay, France LPNHE, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France LPNHE, Universités Paris VI and VII, IN2P3-CNRS, Paris, France Institute of Physics, Czech Academy of Sciences, Praha, Czech Republic . Faculty of Mathematics and Physics, Charles University, Praha, Czech Republic . Dipartimento di Fisica Università di Roma Tre and INFN Roma 3, Roma, Italy . Paul Scherrer Institut, Villigen, Switzerland . . Fachbereich Physik, Bergische Universität Gesamthochschule Wuppertal, Wuppertal, Germany . Yerevan Physics Institute, Yerevan, Armenia . DESY, Zeuthen, Germany . Institut für Teilchenphysik, ETH, Zürich, Switzerland . Physik-Institut der Universität Zürich, Zürich, Switzerland