Inclusive D*(+/-) meson and associated dijet production in deep-inelastic scattering at HERA

A. Aktas,V. Andreev,T. Anthonis,B. Antunovic,S. Aplin,A. Asmone,A. Astvatsatourov,A. Babaev,S. Backovic,A. Baghdasaryan,P. Baranov,E. Barrelet,W. Bartel,S. Baudrand,M. Beckingham,K. Begzsuren,O. Behnke,O. Behrendt,A. Belousov,N. Berger,J.C. Bizot,M.-O. Boenig,V. Boudry,I. Bozovic-Jelisavcic,J. Bracinik,Gerhard Brandt,M. Brinkmann,V. Brisson,D. Bruncko,F.W. Büsser,A. Bunyatyan,G. Buschhorn,L. Bystritskaya,A. Campbell,K. B. Cantun Avila,F. Cassol-Brunner,K. Cerny,V. Cerny,V. Chekelian,A. Cholewa,J. G. Contreras,J. A. Coughlan,G. Cozzika,J. Cvach,J.B. Dainton,K. Daum,Y De Boer,B. Delcourt,M. Del Degan,A. De Roeck,E. A. DeWolf,C. Diaconu,V. Dodonov,A. Dubak,Guenter Eckerlin,V. Efremenko,S. Egli,R. Eichler,F. Eisele,A. Eliseev,E. Elsen,S. Essenov,A. Falkewicz,P J W Faulkner,L. Favart,A. Fedotov,R. Felst,J. Feltesse,J. Ferencei,L. Finke,M. Fleischer,A. Fomenko,G. Franke,T. Frisson,E. Gabathuler,E. Garutti,J. Gayler,S. Ghazaryan,S. Ginzburgskaya,A. Glazov,I. Glushkov,L. Goerlich,M. Goettlich,N. Gogitidze,S. Gorbounov,M. Gouzevitch,C. Grab,T. Greenshaw,M. Gregori,B. R. Grell,G. Grindhammer,S. Habib,D. Haidt,M. Hansson,G. Heinzelmann,C. Helebrant,R. C. W. Henderson,H. Henschel,G. Herrera,M. Hildebrandt,K. H. Hiller,D. Hoffmann,R. Horisberger,A. Hovhannisyan,T. Hreus,S. Hussain,M. Jacquet,M.E. Janssen,X. Janssen,V. Jemanov,L. Jönsson,D.P. Johnson,A.W. Jung,H. Jung,M. Kapichine,J. Katzy,I. R. Kenyon,C. Kiesling,M. Klein,C. Kleinwort,T. Klimkovich,T. Kluge,G. Knies,A. Knutsson,V. Korbel,P. Kostka,M. Kraemer,K. Krastev,J. Kretzschmar,A. Kropivnitskaya,K. Krüger,M. P. J. Landon,W. Lange,G. Lastovicka-Medin,P. Laycock,A. Lebedev,G. Leibenguth,V. Lendermann,S. Levonian,L. Lindfeld,K. Lipka,A. Liptaj,B. List,J. List,N. Loktionova,R. Lopez-Fernandez,V. Lubimov,A.-I. Lucaci-Timoce,H. Lueders,L. Lytkin,A. Makankine,E. Malinovski,P. Marage,Ll. Marti,M. Martisikova,H.-U. Martyn,S. J. Maxfield,A. Mehta,K. Meier,Andreas Bernhard Meyer,H. Meyer,J. Meyer,V. Michels,S. Mikocki,I. Milcewicz-Mika,D. Mladenov,A. Mohamed,F. Moreau,A. Morozov,J. V. Morris,Matthias Ulrich Mozer,K. Müller,Pavel Murin,K. Nankov,B. Naroska,Th. Naumann,Paul Newman,C. Niebuhr,A. Nikiforov,G. Nowak,K. Nowak,M. Nozicka,R. Oganezov,B. Olivier,J.E. Olsson,S. Osman,D. Ozerov,V. Palichik,I. Panagoulias,M. Pandurovic,Th. D. Papadopoulou,C. Pascaud,G. D. Patel,H. Peng,E. Perez,D. Perez-Astudillo,A. Perieanu,A. Petrukhin,I. Picuric,S. M. Piec,D. Pitzl,R. Placakyte,B. Povh,T. Preda,P. Prideaux,A.J. Rahmat,N. Raicevic,T. Ravdandorj,P. Reimer,A. Rimmer,C. Risler,E. Rizvi,P. Robmann,B. Roland,R. Roosen,A. Rostovtsev,Z. Rurikova,Sergey Rusakov,F. Salvaire,D. P. C. Sankey,M Sauter,E. Sauvan,S. Schmidt,S. Schmitt,C. Schmitz,L. Schoeffel,A. Schöning,H.-C. Schultz-Coulon,F. Sefkow,R.N. Shaw-West,I. Sheviakov,L.N. Shtarkov,T. Sloan,I. Smiljanic,P. Smirnov,Y. Soloviev,D. South,V. Spaskov,A. Specka,M. Steder,B. Stella,J. Stiewe,U Straumann,D. Sunar,T. Sykora,V. Tchoulakov,G. Thompson,P. D. Thompson,T. Toll,F. Tomasz,D. Traynor,T.N. Trinh,P. Truöl,I. Tsakov,B. Tseepeldorj,G. Tsipolitis,I. Tsurin,J. Turnau,E. Tzamariudaki,K. Urban,A. Usik,D. Utkin,A. Valkárová,C. Vallée,P. Van Mechelen,A. D. R. Vargas Trevino,Y. Vazdik,S. Vinokurova,V. Volchinski,G. Weber,R. Weber,D. Wegener,C. Werner,Martin Wessels,Ch. Wissing,R Wolf,S. Xella,W. Yan,V. Yeganov,J. Zacek,J. Zalesak,Zhen Zhang,A. Zhelezov,A. Zhokin,Y.C. Zhu,J. Zimmermann,T. Zimmermann,H. Zohrabyan,F. Zomer

Inclusive D*(+/-) meson and associated dijet production in deep-inelastic scattering at HERA

2007

Inclusive D*± production is measured in deep-inelastic ep scattering at HERAwith the H1 detector. In addition, the production of dijets in events with a D*± mesonis investigated. The analysis covers values of photon virtuality 2 ≤ Q2 ≤ 100 GeV2 and of inelasticity 0.05≤y≤0.7. Differential cross sections are measured as a function of Q2 and x and of various D*± mesonand jet observables. Within the experimental and theoretical uncertainties all measured cross sections are found to be adequately described by next-to-leading order (NLO) QCD calculations, based on the photon– gluonfusion process and DGLAPevolution, without the need for an additional resolved component of the photon beyond what is included at NLO. A reasonable description of the data is also achieved by a prediction based on the CCFM evolution of partons involving the kT-unintegrated gluondistribution of the proton.

Keywords:

Correction
Source
Cite
Save

References

Citations