ZEUS next-to-leading-order QCD analysis of data on deep inelastic scattering

Chekanov, S. et al. (2003) ZEUS next-to-leading-order QCD analysis of data on deep inelastic scattering. Physical Review D, 67(1), p. 12007. (doi:10.1103/PhysRevD.67.012007)

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Abstract

Next-to-leading-order QCD analyses of the ZEUS data on deep inelastic scattering together with fixed-target data have been performed, from which the gluon and quark densities of the proton and the value of the strong coupling constant alpha <sub>s</sub> (M<sub> Z</sub>) were extracted. The study includes a full treatment of the experimental systematic uncertainties including point-to-point correlations. The resulting uncertainties in the parton density functions are presented. A combined fit for alpha <sub>s</sub> (M<sub> Z</sub>) and the gluon and quark densities yields a value for alpha <sub>s</sub> (M<sub> Z</sub>) in agreement with the world average. The parton density functions derived from ZEUS data alone indicate the importance of HERA data in determining the sea quark and gluon distributions at low x. The limits of applicability of the theoretical formalism have been explored by comparing the fit predictions to ZEUS data at very low Q<sup> 2</sup>.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Ferrando, Dr James and Saxon, Professor David and Bussey, Dr Peter and Doyle, Professor Anthony and Skillicorn, Professor Ian
Authors: Chekanov, S., Krakauer, D., Magill, S., Musgrave, B., Repond, J., Yoshida, R., Mattingly, M.C.K., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Romeo, G.C., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., de Pasquale, S., Giusti, P., Iacobucci, G., Margotti, A., Nania, R., Palmonari, F., Pesci, A., Sartorelli, G., Zichichi, A., Aghuzumtsyan, G., Bartsch, D., Brock, I., Crittenden, J., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, H.P., Kappes, A., Katz, U.F., Kerger, R., Kind, O., Paul, E., Rautenberg, J., Renner, R., Schnurbusch, H., Stifutkin, A., Tandler, J., Voss, K.C., Weber, A., Bailey, D.S., Brook, N.H., Cole, J.E., Foster, B., Heath, G.P., Heath, H.F., Robins, S., Rodrigues, E., Scott, J., Tapper, R.J., Wing, M., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Kim, J.Y., Kim, Y.K., Lee, J.H., Lim, I.T., Pac, M.Y., Caldwell, A., Helbich, M., Liu, X., Mellado, B., Ning, Y., Paganis, S., Ren, Z., Schmidke, W.B., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Olkiewicz, K., Piotrzkowski, K., Przybycien, M.B., Stopa, P., Zawiejski, L., Adamczyk, L., Bold, T., Grabowska-Bold, I., Kisielewska, D., Kowal, A.M., Kowal, M., Kowalski, T., Przybycien, M., Suszycki, L., Szuba, D., Szuba, J., Kotanski, A., Slominski, W., Bauerdick, L.A.T., Behrens, U., Borras, K., Chiochia, V., Dannheim, D., Derrick, M., Drews, G., Fourletova, J., Fox-Murphy, A., Fricke, U., Geiser, A., Goebel, F., Gottlicher, P., Gutsche, O., Haas, T., Hain, W., Hartner, G.F., Hillert, S., Kotz, U., Kowalski, H., Kramberger, G., Labes, H., Lelas, D., Lohr, B., Mankel, R., Martinez, M., Melzer-Pellmann, I.A., Moritz, M., Notz, D., Petrucci, M.C., Polini, A., Raval, A., Schneekloth, U., Selonke, F., Surrow, B., Wessoleck, H., Wichmann, R., Wolf, G., Youngman, C., Zeuner, W., Viani, A.L.-D., Meyer, A., Schlenstedt, S., Barbagli, G., Gallo, E., Genta, C., Pelfer, P.G., Bamberger, A., Benen, A., Coppola, N., Raach, H., Bell, M., Bussey, P.J., Doyle, A.T., Glasman, C., Hanlon, S., Lee, S.W., Lupi, A., McCance, G.J., Saxon, D.H., Skillicorn, I.O., Gialas, I., Bodmann, B., Carli, T., Holm, U., Klimek, K., Krumnack, N., Lohrmann, E., Milite, M., Salehi, H., Stonjek, S., Wick, K., Ziegler, A., Ziegler, A., Collins-Tooth, C., Foudas, C., Goncalo, R., Long, K.R., Metlica, F., Miller, D.B., Tapper, A.D., Walker, R., Cloth, P., Filges, D., Kuze, M., Nagano, K., Tokushuku, K., Yamada, S., Yamazaki, Y., Barakbaev, A.N., Boos, E.G., Pokrovskiy, N.S., Zhautykov, B.O., Lim, H., Son, D., Barreiro, F., Gonzalez, O., Labarga, L., del Peso, J., Redondo, I., Terron, J., Vazquez, M., Barbi, M., Bertolin, A., Corriveau, F., Ochs, A., Padhi, S., Stairs, D.G., St Laurent, M., Tsurugai, T., Antonov, A., Danilov, P., Dolgoshein, B.A., Gladkov, D., Sosnovtsev, V., Suchkov, S., Dementiev, R.K., Ermolov, P.F., Golubkov, Y., Katkov, I.I., Khein, L.A., Korzhavina, I.A., Kuzmin, V.A., Levchenko, B.B., Lukina, O.Y., Proskuryakov, A.S., Shcheglova, L.M., Vlasov, N.N., Zotkin, S.A., Bokel, C., Botje, M., Engelen, J., Grijpink, S., Koffeman, E., Kooijman, P., Maddox, E., Pellegrino, A., Schagen, S., Tassi, E., Tiecke, H., Tuning, N., Velthuis, J.J., Wiggers, L., de Wolf, E., Brummer, N., Bylsma, B., Durkin, L.S., Gilmore, J., Ginsburg, C.M., Kim, C.L., Ling, T.Y., Boogert, S., Cooper-Sarkar, A.M., Devenish, R.C.E., Ferrando, J., and Grzelak, G.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review D
Publisher:American Physical Society
ISSN:1550-7998
ISSN (Online):1089-4918

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