A Measurement of the Proton Structure FunctionF 2 ( x ; Q 2 ) at Low x and Low Q 2 at HERAH 1 Collaboration

C. Adlo,M. Anderson,V. Andreev,B. Andrieu,V. Arkadov,C. Arndt,I. Ayyaz,A. Babaev,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,P. Bruel,D. Bruncko,C. Brune,R. Buchholz,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. Fl ugge,A. Fomenko,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,T. Greenshaw,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. Hladk,D. Ho mann,T. Holtom,R. Horisberger,V. L. Hudgson,M. Ibbotson,H. Itterbeck,A. Jacholkowska,C. Jacobsson,M. Jacquet,J. Janoth,D. M. Jansen, L. J onsson,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,H. Kolanoski,S. D. Kolya,V. Korbel,P. Kostka,S. K. Kotelnikov, M. W. Krasny,H. Krehbiel,M. Kuhlen,J. Kurzh ofer,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,L. Lytkin,N. Magnussen,E. Malinovski,P. Marage,J. Marks,R. Marshall,J. Martens,G. Martin,R. Martin,H.-U. Martyn,J. Martyniak,T. Mavroidis,S. J. Max eld, 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,T. Walter,V. Nagovizin,R. Nahnhauer,B. Naroska,Th. Naumann,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,G. Pope,B. Povh, S. Prell,K. Rabbertz,P. Reimer,H. Rick,S. Riess,E. Rizvi,P. Robmann,R. Roosen,K. Rosenbauer,A. Rostovtsev,F. Rouse,C. Royon,S. Rusakov,K. Rybicki,D. P. C. Sankey,P. Schacht,S. Schiek,S. Schleif,P. Schleper,W. von Schlippe,D. Schmidt,G. Schmidt,L. Schoe el,E. Schuhmann,B. Schwab,F. Sefkow,A. Semenov,V. Shekelyan,I. Sheviakov,L. N. Shtarkov

semanticscholar（2008）

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摘要

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 xed 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.

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