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Measurement of D*(+/-) production and the charm contribution to F-2 in deep inelastic scattering at HERA

Breitweg, J. et al. (2000) Measurement of D*(+/-) production and the charm contribution to F-2 in deep inelastic scattering at HERA. European Physical Journal C, 12 (1). 35 -52. ISSN 1434-6044 (doi:10.1007/s100529900244)

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3964b

Abstract

The production of D*(+/-)(2010) mesons in deep inelastic scattering has been measured in the ZEUS detector at HERA using an integrated luminosity of 37 pb(-1). The decay channels D*(+) → D(0)pi(+) (+ c.c.), with D-0 → K(-)pi(+) or D-0 → K(- )pi(-)pi(+)pi(+), have been used to identify the D mesons. The e(+)p cross section for inclusive D*(+/-) production with 1 lt Q(2) lt 600 GeV2 and 0.02 lt y lt 0.7 is 8.31+/- 0.31(stat.)(+0.30)(-0.50) (syst.) nb in the kinematic region 1.5 lt pT(D*(+/-)) lt 15GeV and \eta(D*(+/-))\ lt 1.5. Differential cross sections are consistent with a next-to- leading-order perturbative-QCD calculation when using charm- fragmentation models which take into account the interaction of the charm quark with the proton remnant. The observed cross section is extrapolated to the full kinematic region in pr(D*(+/-)) and eta(D*(+/-)) in order to determine the charm contribution, F-2(c (c) over bar)(x,Q(2)), to the proton structllre function. The ratio F-2(c (c) over bar)/F-2 rises from similar or equal to 10% at Q(2) similar or equal to 1.8 GeV2 to similar or equal to 30% at Q(2) similar or equal to 130 GeV2 for x values in the rarlge 10(-4) to 10(-3).

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s):Saxon, Prof David and Bussey, Dr Peter and Doyle, Prof Anthony and Skillicorn, Prof Ian
Authors: Breitweg, J., Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Pellegrino, A., Repond, J., Stanek, R., Yoshida, R., Mattingly, M.C.K., Abbiendi, G., Anselmo, F., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Romeo, G.C., Castellini, G., Cifarelli, L., Cindolo, F., Contin, A., Coppola, N., Corradi, H., de Pasquale, S., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Pesci, A., Polini, A., Sartorelli, G., Garcia, Y.Z., Zichichi, A., Amelung, C., Bornheim, A., Brock, I., Coboken, K., Crittenden, J., Deffner, R., Eckert, M., Hartmann, H., Heinloth, K., Hilger, E., Jakob, H.P., Kappes, A., Katz, U.F., Kerger, R., Paul, E., Rautenberg, J., Schnurbusch, H., Stifutkin, A., Tandler, J., Weber, A., Wieber, H., Bailey, D.S., Barret, O., Cottingham, W.N., Foster, B., Heath, G.P., Heath, H.F., McFall, J.D., Piccioni, D., Scott, J., Tapper, R.J., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Jeoung, H.Y., Kim, J.Y., Lee, J.H., Lim, I.T., Ma, K.J., Pac, H.Y., Caldwell, A., Liu, W., Liu, X., Mellado, B., Parsons, J.A., Ritz, S., Sacchi, R., Sampson, S., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Klimek, K., Olkiewicz, K., Przybycien, M.B., Stopa, P., Zawiejski, L., Adamczyk, L., Bednarek, B., Jelen, K., Kisielewska, D., Kowal, A.M., Kowalski, T., Przybycien, M., Rulikowska-Zarebska, E., Suszycki, L., Zajac, J., Dulinski, Z., Kotanski, A., Bauerdick, L.A.T., Behrens, U., Bienlein, J.K., Burgard, C., Desler, K., Drews, G., Fox-Murphy, A., Fricke, U., Goebel, F., Gottlicher, P., Graciani, R., Haas, T., Hain, W., Hartner, G.F., Hasell, D., Hebbel, K., Johnson, K.F., Kasemann, M., Koch, W., Kotz, U., Kowalski, H., Lindemann, L., Lohr, B., Martinez, M., Milewski, J., Milite, M., Monteiro, T., Moritz, M., Notz, D., Pelucchi, F., Petrucci, M.C., Piotrzkowski, K., Rohde, M., Saull, P.R.B., Savin, A.A., Schneekloth, U., Schwarzer, O., Selonke, F., Sievers, M., Stonjek, S., Tassi, E., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Burow, B.D., Coldewey, C., Grabosch, H.J., Viani, A.L.D., Meyer, A., Monig, K., Schlenstedt, S., Straub, P.B., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., Votano, L., Bamberger, A., Eisenhardt, S., Markun, P., Raach, H., Wolfle, S., Brook, N.H., Bussey, P.J., Doyle, A.T., Lee, S.W., Macdonald, N., McCance, G.J., Saxon, D.H., Sinclair, L.E., Skillicorn, I.O., Strickland, E., Waugh, R., Bohnet, I., Gendner, N., Holm, U., Meyer-Larsen, A., Salehi, H., Wick, K., Garfagnini, A., Gialas, I., Gladilin, L.K., Kcira, K., Klanner, R., Lohrmann, E., Poelz, G., Zetsche, F., Bacon, T.C., Cole, J.E., Howell, G., Lamberti, L., Long, K.R., Miller, D.B., Prinias, A., Sedgbeer, J.K., Sideris, D., Tapper, A.D., Walker, R., Mallik, U., Wang, S.M., Cloth, P., Filges, D., Ishii, T., Kuze, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamauchi, K., Yamazaki, Y., Ahn, S.H., An, S.H., Hong, S.J., Lee, S.B., Nam, S.W., Park, S.K., Lim, H., Park, I.H., Son, D., Barreiro, F., Fernandez, J.P., Garcia, G., Glasman, C., Hernandez, J.M., Labarga, L., del Peso, J., Puga, J., Redondo, I., Terron, J., Corriveau, F., Hanna, D.S., Hartmann, J., Murray, W.N., Ochs, A., Padhi, S., Riveline, M., Stairs, D.G., St Laurent, M., Wing, M., Tsurugai, T., Bashkirov, V., Dolgoshein, B.A., Bashindzhagyan, G.L., and Ermolov, P.F.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:European Physical Journal C
ISSN:1434-6044

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