The H1 and ZEUS Collaborations

H. Abramowicz,I. Abt,L. Adamczyk,M. Adamus,V. Andreev,S. Antonelli,V. Aushev,Y. Aushev,A. Baghdasaryan, K. Begzsuren,O. Behnke,U. Behrens,A. Belousov,A. Bertolin,I. Bloch,E. G. Boos,K. Borras,V. Boudry,G. Brandt,V. Brisson,D. Britzger,I. Brock,N. H. Brook,R. Brugnera,A. Bruni, A. Buniatyan, P. J. Bussey,A. Bylinkin,L. Bystritskaya,A. Caldwell,A. J. Campbell,K. B. Cantun Avila,M. Capua,C. D. Catterall,F. Ceccopieri,K. Cerny,V. Chekelian,J. Chwastowski,J. Ciborowski,R. Ciesielski,J. G. Contreras,A. M. Cooper-Sarkar,M. Corradi,F. Corriveau,J. Cvach,J. B. Dainton,K. Daum,R. K. Dementiev, R. C. E. Devenish,C. Diaconu,M. Dobre,V. Dodonov,G. Dolinska,S. Dusini,G. Eckerlin,S. Egli,E. Elsen,L. Favart,A. Fedotov,J. Feltesse,J. Ferencei,J. Figiel,M. Fleischer,A. Fomenko,B. Foster,E. Gabathuler,G. Gach,E. Gallo,A. Garfagnini,J. Gayler,A. Geiser,S. Ghazaryan,A. Gizhko,L. K. Gladilin,L. Goerlich, N. Gogitidze,Yu. A. Golubkov,M. Gouzevitch,C. Grab, A. Grebenyuk,J. Grebenyuk,T. Greenshaw,I. Gregor,G. Grindhammer,G. Grzelak,O. Gueta,M. Guzik,D. Haidt,W. Hain,R. C. W. Henderson,J. Hladkỳ,D. Hochman,D. Hoffmann,R. Hori,R. Horisberger,T. Hreus,F. Huber,Z. A. Ibrahim,Y. Iga,M. Ishitsuka, A. Iudin,M. Jacquet,X. Janssen,F. Januschek,N. Z. Jomhari,A. W. Jung,H. Jung,I. Kadenko,S. Kananov, M. Kapichine,U. Karshon,M. Kaur,P. Kaur,C. Kiesling,D. Kisielewska,R. Klanner,M. Klein,U. Klein,C. Kleinwort,R. Kogler,N. Kondrashova, O. Kononenko, Ie. Korol,I. A. Korzhavina,P. Kostka,A. Kotański,U. Kötz,N. Kovalchuk,H. Kowalski,J. Kretzschmar,K. Krüger,B. Krupa,O. Kuprash,M. Kuze,M. P. J. Landon, W. Lange,P. Laycock,A. Lebedev,B. B. Levchenko,S. Levonian,A. Levy,V. Libov, S. Limentani,K. Lipka,M. Lisovyi,B. List,J. List,E. Lobodzinska,B. Lobodzinski,B. Löhr,E. Lohrmann,A. Longhin,D. Lontkovskyi,O. Yu. Lukina,I. Makarenko,E. Malinovski,J. Malka,H.-U. Martyn,S. J. Maxfield,A. Mehta,S. Mergelmeyer,A. B. Meyer,H. Meyer,J. Meyer,S. Mikocki,F. Mohamad Idris,A. Morozov, N. Muhammad Nasir,K. Müller,V. Myronenko,K. Nagano,Th. Naumann,P. R. Newman,C. Niebuhr,T. Nobe,D. Notz,G. Nowak,R. J. Nowak,J. E. Olsson,Yu. Onishchuk,D. Ozerov,P. Pahl,C. Pascaud,G. D. Patel,E. Paul,E. Perez,W. Perlański,A. Petrukhin,I. Picuric,H. Pirumov,D. Pitzl,R. Plačakytė,B. Pokorny,N. S. Pokrovskiy,R. Polifka,M. Przybycień,V. Radescu,N. Raicevic,T. Ravdandorj,P. Reimer,E. Rizvi,P. Robmann,P. Roloff,R. Roosen,A. Rostovtsev,M. Rotaru,I. Rubinsky,S. Rusakov,M. Ruspa,D. Šálek,D. P. C. Sankey,M. Sauter,E. Sauvan,M. Schioppa,W. B. Schmidke,S. Schmitt,U. Schneekloth,L. Schoeffel,A. Schöning,T. Schörner-Sadenius,F. Sefkow,L. M. Shcheglova,O. Shkola,S. Shushkevich, Yu. Shyrma,I. Singh,I. O. Skillicorn,W. Słomiński,A. Solano,Y. Soloviev,P. Sopicki,V. Spaskov, A. Specka,L. Stanco,M. Steder,N. Stefaniuk,A. Stern,U. Straumann,T. Sykora,J. Sztuk-Dambietz,D. Szuba,J. Szuba,E. Tassi,P. D. Thompson,K. Tokushuku,J. Tomaszewska,D. Traynor,A. Trofymov,P. Truöl,I. Tsakov,B. Tseepeldorj,T. Tsurugai,M. Turcato,O. Turkot,J. Turnau,T. Tymieniecka,A. Valkárová,C. Vallée,P. Van Mechelen,Y. Vazdik,A. Verbytskyi,O. Viazlo, R. Walczak,W. A. T. Wan Abdullah,D. Wegener,K. Wichmann,G. Wolf,E. Wünsch,S. Yamada,Y. Yamazaki,J. Žáček,N. Zakharchuk,A. F. Żarnecki,L. Zawiejski,O. Zenaiev,Z. Zhang,B. O. Zhautykov, N. Zhmak,R. Žlebčı́k,H. Zohrabyan,F. Zomer

semanticscholar（2008）

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摘要

H1 and ZEUS have published single-differential cross secti ons for inclusiveD∗±-meson production in deep-inelastic ep scattering at HERA from their respective final data sets. These cross sections are combined in the common visible phas e-space region of photon virtuality Q2 > 5 GeV2, electron inelasticity 0 . 2< y < 0.7 and theD∗± meson’s transverse momentumpT (D∗) > 1.5 GeV and pseudorapidity |η(D∗)| < 1.5. The combination procedure takes into account all correlations, yielding si gnificantly reduced experimental uncertainties. Double-differential cross sections d 2σ/dQ2dy are combined with earlier D∗± data, extending the kinematic range down to Q2 > 1.5 GeV2. Perturbative next-to-leadingorder QCD predictions are compared to the results.

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