Measurement of D ± and D 0 production in deep inelastic scattering using a lifetime tag at HERA

Sergei V. Chekanov, Malcolm Derrick, S. Magill, Brian Musgrave, D. Nicholass, J. Repond, R. Yoshida, M.C.K. Mattingly, P. Antonioli, Giacomo Bari

110 more authors

L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, GIUSEPPE IACOBUCCI, A. Margotti, R. Nania, Alessandro Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, ANTONINO ZICHICHI, D. Bartsch, Ian C. Brock, H. Hartmann, E. Hilger, H.‐P. Jakob, M. Jüngst, A.-E. Nuncio-Quiroz, E. Paul, U. Samson, V. Schönberg, R. Shehzadi, M. Wlasenko, Nicholas H Brook, G. P. Heath, J. D. Morris, M. Kaur, Prabhdeep Kaur, I. Singh, M. Capua, Salvatore Fazio, Anna Mastroberardino, Marco Schioppa, G. F. Susinno, E. ̃Tassi, J. Y. Kim, Z. A. Ibrahim, F. Mohamad Idris, Burhanuddin Kamaluddin, W. A. T. Wan Abdullah, Y. Ning, Z. Ren, F. J. Sciulli, J. J. Chwastowski, A. Eskreys, J. Figiel, A. Galas, Krystyna Olkiewicz, B. Pawlik, P. Stopa, L. Zawiejski, L. Adamczyk, T. Bołd, I. Grabowska-Bołd, Danuta Kisielewska, J. Łukasik, M. Przybycień, L. Suszycki, Andrzej Kotański, W. Słomiński, O. Behnke, U. Behrens, C. Blohm, Anthony Bonato, K. Borras, D. Bot, R. Ciesielski, N. Coppola, S. Fang, J. Fourletova, A. Geiser, P. Göttlicher, J. Grebenyuk, I. M. Gregor, T. Haas, W. Hain, A. Hüttmann, F. Januschek, B. Kahle, I.I. Katkov, U. Klein, U. Kötz, H. Kowalski, M. Arneodo, V. Aushev, Fernando Barreiro, S. Boutle, B. Brzozowska, Jonathan Mark Butterworth, J. Ciborowski, A. M. Cooper-Sarkar, F. Corriveau, M. Costa, S. Dusini, E. Gallo, Grzegorz Grzelak, Claire Gwenlan, Lorenzo Rinaldi, J. E. Cole, Matthew Wing, Aleksander Filip Zarnecki, M. Lisovyi, E. M. Lobodzinska

The European Physical Journal C, 2009

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DOI 10.1140/epjc/s10052-009-1088-x
Data confidence 85 high
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Abstract

The production of D ±- and D 0-mesons has been measured with the ZEUS detector at HERA using an integrated luminosity of 133.6 pb−1. The measurements cover the kinematic range 5<Q 2<1000 GeV2, 0.02<y<0.7, 1.5<p T <15 GeV and |η D |<1.6. Combinatorial background to the D-meson signals is reduced by using the ZEUS microvertex detector to reconstruct displaced secondary vertices. Production cross sections are compared with the predictions of next-to-leading-order QCD, which is found to describe the data well. Measurements are extrapolated to the full kinematic phase space in order to obtain the open-charm contribution, $F_{2}^{c\bar{c}}$ , to the proton structure function, F 2.