Hadron Production in Di ractive Deep-InelasticScatteringH

C. Adlo,M. Anderson,V. Andreev,B. Andrieu,V. Arkadov,C. Arndt,I. Ayyaz,A. Babaev,P. Baranov,E. Barrelet,R. Barschke,W. Bartel,U. Bassler,P. Bate,M. Beck,A. Beglarian,H.-J. Behrend,C. Beier,A. Belousov,Ch. Berger,G. Bernardi,G. Bertrand-Coremans,R. Beyer,P. Biddulph,J. C. Bizot,K. Borras,V. Boudry,A. Braemer,W. Braunschweig,V. Brisson,D. P. Brown,P. Bruel,D. Bruncko,C. Brune,A. Buniatian,S. Burke,G. Buschhorn,D. Calvet,A. J. Campbell,T. Carli,E. Chabert,M. Charlet,D. Clarke,B. Clerbaux,S. Cocks,J. G. Contreras,C. Cormack,J. A. Coughlan,M.-C. Cousinou,B. E. Cox,G. Cozzika,J. Cvach,J. B. Dainton,W. D. Dau,K. Daum,M. David,A. De Roeck,E. A. De Wolf,B. Delcourt,C. Diaconu,M. Dirkmann,P. Dixon,W. Dlugosz,K. T. Donovan,J. D. Dowell,A. Droutskoi,J. Ebert,G. Eckerlin,D. Eckstein,V. Efremenko,S. Egli,R. Eichler,F. Eisele,E. Eisenhandler,E. Elsen,M. Enzenberger,M. Erdmann,A. B. Fahr,L. Favart,A. Fedotov,R. Felst,J. Feltesse,J. Ferencei,F. Ferrarotto,K. Flamm,M. Fleischer,G. Fl ugge,A. Fomenko,J. M. Foster,G. Franke,E. Gabathuler,K. Gabathuler,F. Gaede,J. Garvey,J. Gayler,M. Gebauer,R. Gerhards,A. Glazov,L. Goerlich,N. Gogitidze,M. Goldberg,I. Gorelov,C. Grab,T. Greenshaw,G. Grindhammer,C. Gruber,T. Hadig,D. Haidt,L. Hajduk,T. Haller,M. Hampel,V. Haustein,W. J. Haynes,B. Heinemann,G. Heinzelmann,R. C. W. Henderson,S. Hengstmann,H. Henschel,R. Heremans,I. Herynek,K. Hewitt,K. H. Hiller,C. D. Hilton,J. Hladk,D. Ho mann,T. Holtom,R. Horisberger,V. L. Hudgson,M. Ibbotson,H. Itterbeck,M. Jacquet,J. Janoth,D. M. Jansen,L. J onsson,D. P. Johnson,H. Jung,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,B. Laforge,R. Lahmann,M. P. J. Landon,W. Lange,U. Langenegger,A. Lebedev,M. Lehmann,F. Lehner,V. Lemaitre,S. Levonian,M. Lindstroem,J. Lipinski,B. List,G. Lobo,V. Lubimov,L. Lytkin,N. Magnussen,E. Malinovski,P. Marage,J. Marks,R. Marshall,G. Martin,R. Martin,H.-U. Martyn,J. Martyniak,S. J. Max eld,S. J. McMahon,T. R. 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,R. Mohr,S. Mohrdieck,F. Moreau,J. V. Morris,E. Mroczko,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,O. Nix,G. Nowak,T. Nunnemann,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,K. Rabbertz,P. Reimer,B. Reisert,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,J. Scheins,S. Schiek,S. Schleif,P. Schleper,W. von Schlippe,D. Schmidt,G. Schmidt,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,H. Spitzer,F. Squinabol,R. Steinberg, J. Steinhart,B. Stella,A. Stellberger,J. Stiewe, K. Stolze,U. Straumann,W. Struczinski,J. P. Sutton,M. Swart

semanticscholar（2007）

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摘要

Characteristics of hadron production in diiractive deep-inelastic positron-proton scattering are studied using data collected in 1994 by the H1 experiment at HERA. The following distributions are measured in the centre-of-mass frame of the pho-ton dissociation system: the hadronic energy ow, the Feynman-x (x F) variable for charged particles, the squared transverse momentum of charged particles (p 2 T), and the mean p 2 T as a function of x F. These distributions are compared with results in the p centre-of-mass frame from inclusive deep-inelastic scattering in the xed-target experiment EMC, and also with the predictions of several Monte Carlo calculations. The data are consistent with a picture in which the partonic structure of the diiractive exchange is dominated at low Q 2 by hard gluons.

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