Chekanov, S. et al. (2003) Measurements of inelastic J/psi and psi'photoproduction at HERA. European Physical Journal C, 27(2), 173 -188. (doi: 10.1140/epjc/s2002-01130-2)
Text
arxivredirect.html 3kB |
Abstract
The cross sections for inelastic photoproduction of J/psi and psi' mesons have been measured in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 38.0 pb(- 1). The events were required to have 0.1 lt z lt 0.9 and 50 lt W lt 180 GeV, where z is the fraction of the incident photon energy carried by the J/psi in the proton rest frame and W is the photon-proton centre-of-mass energy. The psi' to J/psi cross- section ratio was measured in the range 0.55 lt z lt 0.9. The J/psi data, for various ranges of transverse momentum, are compared to theoretical models incorporating colour-singlet and colour-octet matrix elements. Predictions of a next-to-leading- order colour-singlet model give a good description of the data, although there is a large normalisation uncertainty. The J/psi helicity distribution for z gt 0.4 is compared to leading-order QCD predictions.
Item Type: | Articles |
---|---|
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Ferrando, Dr James and Saxon, Professor David and Collins-Tooth, Dr Christopher 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., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, H.P., Kappes, A., Katz, U.F., Kind, O., Paul, E., Rautenberg, J., Renner, R., Schnurbusch, H., Stifutkin, A., Tandler, J., Voss, K.C., Wang, M., 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., 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., Kotasnski, A., Slominski, W., Bauerdick, L.A.T., Behrens, U., Bloch, I., 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., Melzer-Pellmann, I.A., Moritz, M., Notz, D., Petrucci, M.C., Polini, A., Raval, A., Schneekloth, U., Selonke, F., 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., 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., Tapper, A.D., 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., Tassi, E., 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.A., 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., Engelen, J., Grijpink, S., Koffeman, E., Kooijman, P., Maddox, E., Pellegrino, A., Schagen, S., Tiecke, H., Tuning, N., Velthuis, J.J., Wiggers, L., de Wolf, E., Brummer, N., Bylsma, B., Durkin, L.S., Ling, T.Y., Boogert, S., Cooper-Sarkar, A.M., Devenish, R.C.E., Ferrando, J., Grzelak, G., Matsushita, T., Rigby, M., Ruske, O., Sutton, M.R., Walczak, R., Brugnera, R., Carlin, R., Dal Corso, F., Dusini, S., Garfagnini, A., and Limentani, S. |
Subjects: | Q Science > QC Physics |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | European Physical Journal C |
Publisher: | Springer |
ISSN: | 1434-6044 |
ISSN (Online): | 1434-6052 |
University Staff: Request a correction | Enlighten Editors: Update this record