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Publication Detail
Differential cross sections of D*± photoproduction in ep collisions at HERA
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Publication Type:Journal article
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Publication Sub Type:Journal Article
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Authors:Breitweg J, Derrick M, Krakauer D, Magill S, Mikunas D, Musgrave B, Repond J, Stanek R, Talaga RL, Yoshida R, Zhang H, Mattingly MCK, Anselmo F, Antonioli R, Bari G, Basile M, Bellagamba L, Boscherini D, Bruni A, Bruni G, Cara Romeo G, Castellini G, Cifarelli L, Cindolo F, Contin A, Corradi M, Gialas I, Giusti R, Iacobucci G, Laurenti G, Levi G, Margotti A, Massam T, Nania R, Palmonari F, de Pasquale S, Pesci A, Polini A, Sartorelli G, Zamora Garcia Y, Zichichi A, Amelung C, Bornheim A, Brock I, Coböken K, Crittenden J, Deffner R, Eckert M, Feld L, Grothe M, Hartmann H, Heinloth K, Heinz L, Hilger E, Jakob HP, Katz UF, Paul E, Pfeiffer M, Rembser C, Stamm J, Wedemeyer R, Bailey DS, Campbell-Robson S, Cottingham WN, Foster B, Hall-Wilton R, Hayes ME, Heath GP, Heath HF, Piccioni D, Roff DG, Tapper RJ, Arneodo M, Ayad R, Capua M, Garfagnini A, Iannotti L, Schioppa M, Susinno G, Kim JY, Lee JH, Lim IT, Pac MY, Caldwell A, Cartiglia N, Jing Z, Liu W, Parsons JA, Ritz S, Sampson S, Sciulli F, Straub PB, Zhu Q, Borzemski P, Chwastowski J, Eskreys A, Jakubowski Z, Przybycień MB, Zachara M, Zawiejski L
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Publication date:22/05/1997
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Pagination:192, 206
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Journal:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
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Volume:401
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Issue:1-2
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Status:Published
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Print ISSN:0370-2693
Abstract
Inclusive photoproduction of D*± in ep collisions at HERA has been measured with the ZEUS detector for photon-proton centre of mass energies in the range 115 < W < 280 GeV and photon virtuality Q2 < 4 GeV2. The cross section σ → D*X integrated over the kinematic region pDz.ast;⊥ > 3 GeV and -1.5 < ηD* < 1.0 is (10.6 ± 1.7(stat.) ± 1.61.3 (syst.)) nb. Differential cross sections as functions of pD*⊥, ηD* and W are given. The data are compared with two next-to-leading order perturbative QCD predictions. For a calculation using a massive charm scheme the predicted cross sections are smaller than the measured ones. A recent calculation using a massless charm scheme is in agreement with the data. © 1997 Published by Elsevier Science B.V.
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