Measurement of D∗± meson production and determination of at low Q2 in deep-inelastic scattering at HERA

• Published in: The European physical journal. C, Particles and fields Vol. 71; no. 10
• Main Authors: Alexa, C., Andreev, V., Baghdasaryan, S., Begzsuren, K., Belousov, A., Brinkmann, M., Bunyatyan, A., Buschhorn, G., Campbell, A. J., Cerny, V., Contreras, J. G., Cvach, J., Dainton, J. B., Delvax, J., Dobre, M., Dodonov, V., Dubak, A., Eckerlin, G., Elsen, E., Feltesse, J., Fleischer, M., Fomenko, A., Glazov, A., Gogitidze, N., Grebenyuk, A., Greenshaw, T., Grell, B. R., Henderson, R. C. W., Hennekemper, E., Herbst, M., Hoffmann, D., Horisberger, R., Hreus, T., Jacquet, M., Jönsson, L., Jung, A. W., Kapichine, M., Kenyon, I. R., Kiesling, C., Landon, M. P. J., Lange, W., Lendermann, V., Lipka, K., List, B., List, J., Lopez-Fernandez, R., Lubimov, V., Makankine, A., Malinovski, E., Mehta, A., Meyer, A. B., Meyer, H., Meyer, J., Mikocki, S., Milcewicz-Mika, I., Moreau, F., Mudrinic, M., Naumann, Th, Nikitin, D., Nowak, K., Olsson, J. E., Pahl, P., Palichik, V., Panagoulias, I., Papadopoulou, Th, Patel, G. D., Perez, E., Petrukhin, A., Picuric, I., Pirumov, H., Pitzl, D., Plačakytė, R., Pokorny, B., Povh, B., Raicevic, N., Rizvi, E., Ruiz Tabasco, J. E., Sauter, M., Schmitt, S., Schoeffel, L., Sefkow, F., Shushkevich, S., Soloviev, Y., Spaskov, V., Staykova, Z., Steder, M., Stella, B., Straumann, U., Sykora, T., Traynor, D., Truöl, P., Tseepeldorj, B., Urban, K., Valkárová, A., Vallée, C., Van Mechelen, P., Vazdik, Y., Žáček, J., Zálešák, J., Zohrabyan, H.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer-Verlag 2011
• Subjects: Astronomy; Astrophysics and Cosmology; Elementary Particles; Hadrons; Heavy Ions; Measurement Science and Instrumentation; Nuclear Energy; Nuclear Physics; Physics; Physics and Astronomy; Quantum Field Theories; Quantum Field Theory; Regular Article - Experimental Physics; String Theory; Monte Carlo; Transverse Momentum; Parton Shower; Charm Quark; ZEUS Collaboration
• ISSN: 1434-6044; 1434-6052
• DOI: 10.1140/epjc/s10052-011-1769-0

Inclusive production of D ∗  mesons in deep-inelastic ep scattering at HERA is studied in the range 5< Q 2 <100 GeV 2 of the photon virtuality and 0.02< y <0.7 of the inelasticity of the scattering process. The observed phase space for the D ∗  meson is p T ( D ∗ )>1.25 GeV and | η ( D ∗ )|<1.8. The data sample corresponds to an integrated luminosity of 348 pb −1 collected with the H1 detector. Single and double differential cross sections are measured and the charm contribution to the proton structure function F 2 is determined. The results are compared to perturbative QCD predictions at next-to-leading order implementing different schemes for the charm mass treatment and with Monte Carlo models based on leading order matrix elements with parton showers.