Multiplicity Structure of the Hadronic Final State inDi ractive Deep-Inelastic Scattering at HERA H 1 Collaboration
C. Adlo,M. Anderson,V. Andreev,B. Andrieu,V. Arkadov,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,P. Biddulph,J. C. Bizot,K. Borras,V. Boudry,A. Braemer,W. Braunschweig,V. Brisson,D. P. Brown,P. Bruel,D. Bruncko,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,A. Fomenko,J. M. Foster,G. Franke,E. Gabathuler,K. Gabathuler,F. Gaede,J. Garvey,J. Gayler,M. Gebauer,R. Gerhards,S. Ghazaryan,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,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,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,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,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,D. Schmidt,G. Schmidt,L. Schoe el,H.-C. Schultz-Coulon,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,U. Straumann,W. Struczinski,J. P. Sutton,M. Swart,S. Tapprogge,V. Tchernyshov,S. Tchetchelnitski,J. Theissen,G. Thompson,P. D. Thompson,N. Tobien,R. Todenhagen,G. Tsipolitis,J. Turnau,E. Tzamariudaki,S. Udluft,A. Usik,P. Van Esch,P. Van Mechelen,Y. Vazdik,G. Villet,K. Wacker,R. Wallny,T. Walter,B. Waugh,G. Weber,M. Weber,D. Wegener,A. Wegner,T. Wengler,M. Werner,L. R. West,S. Wiesand,T. Wilksen,S. Willard,M. Winde,G.-G. Winter,C. Wittek,E. Wittmann,M. Wobisch
semanticscholar（2007）
引用0|浏览4
暂无评分
摘要
ISSN 0418-9833 Multiplicity Structure of the Hadronic Final State in Di ractive Deep-Inelastic Scattering at HERA H1 Collaboration Abstract The multiplicity structure of the hadronic system X produced in deep-inelastic processes at HERA of the type ep ! eXY , where Y is a hadronic system with mass MY < 1:6 GeV and where the squared momentum transfer at the pY vertex, t, is limited to jtj < 1 GeV2, is studied as a function of the invariant mass MX of the system X. Results are presented on multiplicity distributions and multiplicity moments, rapidity spectra and forward-backward correlations in the centre-ofmass system of X. The data are compared to results in e+e annihilation, xedtarget lepton-nucleon collisions, hadro-produced di ractive nal states and to nondi ractive hadron-hadron collisions. The comparison suggests a production mechanism of virtual photon dissociation which involves a mixture of partonic states and a signi cant gluon content. The data are well described by a model, based on a QCD-Regge analysis of the di ractive structure function, which assumes a large hard gluonic component of the colourless exchange at low Q2. A model with soft colour interactions is also successful.
