Measurement of D+- and D0 Production in Deep Inelastic Scattering Using a Lifetime Tag at HERA.

Chekanov, S[ 1 ]; Derrick, M[ 1 ]; Magill, S[ 1 ]; Musgrave, B[ 1 ]; Nicholass, D[ 1 ]; Repond, J[ 1 ]; Yoshida, R[ 1 ]; Mattingly, MCK[ 2 ]; Antonioli, P[ 3 ]; Bari, G[ 3 ]; Bellagamba, L[ 3 ]; Boscherini, D[ 3 ]; Bruni, A[ 3 ]; Bruni, G[ 3 ]; Cindolo, F[ 3 ]; Corradi, M[ 3 ]; Iacobucci, G[ 3 ]; Margotti, A[ 3 ]; Nania, R[ 3 ]; Polini, A[ 3 ]; Antonelli,; 4, S[; 3 ], Basile; 4, M[; 3 ], Bindi; 4, M[; 3 ], Cifarelli; 4, L[; 3 ], Contin; 4, A[; ], 3; DE PASQUALE, Salvatore; 4, S[; 3 ], Sartorelli; 4, G[; 3 ], Zichichi; 4, A[; ], 3; Bartsch, D[ 5 ]; Brock, I[ 5 ]; Hartmann, H[ 5 ]; Hilger, E[ 5 ]; Jakob, HP[ 5 ]; Jungst, M[ 5 ]; Nuncio Quiroz, AE[ 5 ]; Paul, E[ 5 ]; Samson, U[ 5 ]; Schonberg, V[ 5 ]; Shehzadi, R[ 5 ]; Wlasenko, M[ 5 ]; Brook, NH[ 52 ]; Heath, GP[ 52 ]; Morris, JD[ 52 ]; Kaur, M[ 6 ]; Kaur,; 6, P[; ], 61; Singh,; 6, I[; ], 61; Capua,; 7, M[; ], 53; Fazio,; 7, S[; ], 53; Mastroberardino,; 7, A[; ], 53; Schioppa,; 7, M[; ], 53; Susinno,; 7, G[; ], 53; Tassi,; 7, E[; ], 53; Kim, JY[ 8 ]; Ibrahim, ZA[ 9 ]; Idris, F[ 9 ]; Kamaluddin, B[ 9 ]; Abdullah, WATW[ 9 ]; Ning, Y[ 10 ]; Ren, Z[ 10 ]; Sciulli, F[ 10 ]; Chwastowski, J[ 11 ]; Eskreys, A[ 11 ]; Figiel, J[ 11 ]; Galas, A[ 11 ]; Olkiewicz, K[ 11 ]; Pawlik, B[ 11 ]; Stopa, P[ 11 ]; Zawiejski, L[ 11 ]; Adamczyk, L[ 12 ]; Bold, T[ 12 ]; Grabowska Bold, I[ 12 ]; Kisielewska, D[ 12 ]; Lukasik, J[ 12 ]; Przybycie, M[ 12 ]; Suszycki, L[ 12 ]; Kotanski, A[ 13 ]; Slominski, W[ 13 ]; Behnke, O[ 14 ]; Behrens, U[ 14 ]; Blohm, C[ 14 ]; Bonato, A[ 14 ]; Borras, K[ 14 ]; Bot, D[ 14 ]; Ciesielski, R[ 14 ]; Coppola, N[ 14 ]; Fang, S[ 14 ]; Fourletova, J[ 14 ]; Geiser, A[ 14 ]; Gottlicher, P[ 14 ]; Grebenyuk, J[ 14 ]; Gregor, I[ 14 ]; Haas, T[ 14 ]; Hain, W[ 14 ]; Huttmann, A[ 14 ]; Januschek, F[ 14 ]; Kahle, B[ 14 ]; Katkov, II[ 14 ]; Klein, U[ 14 ]; Kotz, U[ 14 ]; Kowalski, H[ 14 ]; Lisovyi, M[ 14 ]; Lobodzinska, E[ 14 ]; Lohr, B[ 14 ]; Mankel, R[ 14 ]; Melzer Pellmann, IA[ 14 ]; Miglioranzi, S[ 14 ]; Montanari, A[ 14 ]; Namsoo, T[ 14 ]; Notz, D[ 14 ]; Parenti, A[ 14 ]; Rinaldi, L[ 14 ]; Roloff, P[ 14 ]; Rubinsky, I[ 14 ]; Schneekloth, U[ 14 ]; Spiridonov,; 14, A[; ], 62; Szuba,; 14, D[; ], 63; Szuba,; 14, J[; ], 64; Theedt, T[ 14 ]; Ukleja, J[ 14 ]; Wolf, G[ 14 ]; Wrona, K[ 14 ]; Molina, AGY[ 14 ]; Youngman, C[ 14 ]; Zeuner, W[ 14 ]; Drugakov, V[ 15 ]; Lohmann, W[ 15 ]; Schlenstedt, S[ 15 ]; Barbagli, G[ 16 ]; Gallo, E[ 16 ]; Pelfer,; Pg[, 17; ], 16; Bamberger, A[ 18 ]; Dobur, D[ 18 ]; Karstens, F[ 18 ]; Vlasov, NN[ 18 ]; Bussey, PJ[ 19 ]; Doyle, AT[ 19 ]; Dunne, W[ 19 ]; Forrest, M[ 19 ]; Rosin, M[ 19 ]; Saxon, DH[ 19 ]; Skillicorn, IO[ 19 ]; Gialas, I[ 20 ]; Papageorgiu, K[ 20 ]; Holm, U[ 21 ]; Klanner, R[ 21 ]; Lohrmann, E[ 21 ]; Perrey, H[ 21 ]; Schleper, P[ 21 ]; Schorner Sadenius, T[ 21 ]; Sztuk, J[ 21 ]; Stadie, H[ 21 ]; Turcato, M[ 21 ]; Foudas,; 2, C[; ], 54; Fry,; 2, C[; ], 54; Long,; Kr[, 2; ], 54; Tapper,; Ad[, 2; ], 54; Matsumoto, T[ 22 ]; Nagano, K[ 22 ]; Tokushuku, K[ 22 ]; Yamada, S[ 22 ]; Yamazaki, Y[ 22 ]; Barakbaev, AN[ 23 ]; Boos, EG[ 23 ]; Pokrovskiy, NS[ 23 ]; Zhautykov, BO[ 23 ]; Aushev, V[ 24 ]; Bachynska, O[ 24 ]; Borodin, M[ 24 ]; Kadenko, I[ 24 ]; Kozulia, A[ 24 ]; Libov, V[ 24 ]; Lontkovskyi, D[ 24 ]; Makarenko, I[ 24 ]; Sorokin, I[ 24 ]; Verbytskyi, A[ 24 ]; Volynets, O[ 24 ]; Son, D[ 25 ]; de Favereau, J[ 26 ]; Piotrzkowski, K[ 26 ]; Barreiro, F[ 27 ]; Glasman, C[ 27 ]; Jimenez, M[ 27 ]; Labarga, L[ 27 ]; del Peso, J[ 27 ]; Ron, E[ 27 ]; Soares, M[ 27 ]; Terron, J[ 27 ]; Uribe Estrada, C[ 27 ]; Zambrana, M[ 27 ]; Corriveau, F[ 28 ]; Liu, C[ 28 ]; Schwartz, J[ 28 ]; Walsh, R[ 28 ]; Zhou, C[ 28 ]; Tsurugai, T[ 29 ]; Antonov, A[ 30 ]; Dolgoshein, BA[ 30 ]; Gladkov, D[ 30 ]; Sosnovtsev, V[ 30 ]; Stifutkin, A[ 30 ]; Suchkov, S[ 30 ]; Dementiev, RK[ 31 ]; Ermolov, PF[ 31 ]; Gladilin, LK[ 31 ]; Golubkov, YA[ 31 ]; Khein, LA[ 31 ]; Korzhavina, IA[ 31 ]; Kuzmin, VA[ 31 ]; Levchenko, BB[ 31 ]; Lukina, OY[ 31 ]; Proskuryakov, AS[ 31 ]; Shcheglova, LM[ 31 ]; Zotkin, DS[ 31 ]; Abt, I[ 32 ]; Caldwell, A[ 32 ]; Kollar, D[ 32 ]; Reisert, B[ 32 ]; Schmidke, WB[ 32 ]; Grigorescu,; 33, G[; ], 55; Keramidas,; 33, A[; ], 55; Koffeman,; 33, E[; ], 55; Kooijman,; 33, P[; ], 55; Pellegrino,; 33, A[; ], 55; Tiecke,; 33, H[; ], 55; Vazquez,; 33, M[; ], 55; Wiggers,; 33, L[; ], 55; Brummer, N[ 34 ]; Bylsma, B[ 34 ]; Durkin, LS[ 34 ]; Lee, A[ 34 ]; Ling, TY[ 34 ]; Allfrey,; Pd[, 3; ], 56; Bell,; Ma[, 3; ], 56; Sarkar, Cooper; Am[, 3; ], 56; Devenish,; Rce[, 3; ], 56; Ferrando,; 3, J[; ], 56; Foster,; 3, B[; ], 56; Gwenlan,; 3, C[; ], 56; Horton,; 3, K[; ], 56; Oliver,; 3, K[; ], 56; Robertson,; 3, A[; ], 56; Walczak,; 3, R[; ], 56; Bertolin, A[ 35 ]; Dal Corso, F[ 35 ]; Dusini, S[ 35 ]; Longhin, A[ 35 ]; Stanco, L[ 35 ]; Bellan,; 36, P[; ], 35; Brugnera,; 36, R[; ], 35; Carlin,; 36, R[; ], 35; Garfagnini,; 36, A[; ], 35; Limentani,; 36, S[; ], 35; BY[ 37 ], Oh; Raval, A[ 37 ]; Whitmore, JJ[ 37 ]; Iga, Y[ 38 ]; D'Agostini,; 39, G[; ], 57; Marini,; 39, G[; ], 57; Nigro,; 39, A[; ], 57; Cole,; Je[, 4; ], 58; Hart,; Jc[, 4; ], 58; Abramowicz,; 40, H[; ], 61; Ingbir, R[ 40 ]; Kananov, S[ 40 ]; Levy, A[ 40 ]; Stern, A[ 40 ]; Kuze, M[ 41 ]; Maeda, J[ 41 ]; Hori, R[ 42 ]; Kagawa, S[ 42 ]; Okazaki, N[ 42 ]; Shimizu, S[ 42 ]; Tawara, T[ 42 ]; Hamatsu, R[ 43 ]; Kaji, H[ 43 ]; Kitamura, S[ 43 ]; Ota, O[ 43 ]; YD[ 43 ], Ri; Costa,; 44, M[; ], 59; Ferrero,; Mi[, 44; ], 59; Monaco,; 44, V[; ], 59; Sacchi,; 44, R[; ], 59; Sola,; 44, V[; ], 59; Solano,; 44, A[; ], 59; Arneodo,; 45, M[; ], 59; Ruspa,; 45, M[; ], 59; Fourletov, S[ 46 ]; Martin, JF[ 46 ]; Stewart, TP[ 46 ]; Boutle,; Sk[, 5; ], 60; Butterworth,; Jm[, 5; ], 60; Wilton, Hall; 5, R[; ], 60; Jones,; Tw[, 5; ], 60; Loizides,; Jh[, 5; ], 60; Sutton,; Mr[, 5; ], 60; Wing,; 5, M[; 60,; ], 21; Brzozowska, B[ 47 ]; Ciborowski,; 47, J[; ], 65; Grzelak, G[ 47 ]; Kulinski, P[ 47 ]; Luzniak, P[ 47 ]; Malka, J[ 47 ]; Nowak, RJ[ 47 ]; Pawlak, JM[ 47 ]; Perlanski, W[ 47 ]; Tymieniecka,; 47, T[; ], 66; Zarnecki, AF[ 47 ]; Adamus, M[ 48 ]; Plucinski, P[ 48 ]; Ukleja, A[ 48 ]; Eisenberg, Y[ 49 ]; Hochman, D[ 49 ]; Karshon, U[ 49 ]; Brownson, E[ 50 ]; Reeder, DD[ 50 ]; Savin, AA[ 50 ]; Smith, WH[ 50 ]; Wolfe, H[ 50 ]; Bhadra, S[ 51 ]; Catterall, CD[ 51 ]; Cui, Y[ 51 ]; Hartner, G[ 51 ]; Menary, S[ 51 ]; Noor, U[ 51 ]; Standage, J[ 51 ]; Whyte, J.

doi:10.1140/epjc/s10052-009-1088-x

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 D <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, Fcc 2 to the proton structure function, F 2.