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ZEUS results on the measurement and phenomenology of F2 at low χ and low Q2

Breitweg , J. et al. (1999) ZEUS results on the measurement and phenomenology of F2 at low χ and low Q2. European Physical Journal C, 7 (4). pp. 609-630. ISSN 1434-6044 (doi:10.1007/s100520050432)

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Publisher's URL: http://dx.doi.org/10.1007/s100520050432

Abstract

Measurements of the proton structure function F2 for 0.6 < Q2 < 17 GeV2 and 1.2x10−5 < x < 1.9x10−3 from ZEUS 1995 shifted vertex data are presented. From ZEUS F2 data the slopes dF2=d ln Q2 at fixed x and d ln F2=d ln(1/x) for x < 0.01 at fixed Q2 are derived. For the latter, E665 data are also used. The transition region in Q2 is explored using the simplest non-perturbative models and NLO QCD. The data at very low Q2 ≤ 0.65 GeV2 are described successfully by a combination of generalised vector meson dominance and Regge theory. From a NLO QCD fit to ZEUS data the gluon density in the proton is extracted in the range 3x10−5 < x < 0.7. Data from NMC and BCDMS constrain the fit at large x. Assuming the NLO QCD description to be valid down to Q2 ∼ 1 GeV2, it is found that the qq sea distribution is still rising at small x and the lowest Q2 values whereas the gluon distribution is strongly suppressed.

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., Mikunas, D., Musgrave, B., Repond, J., Stanek, R., Talaga, R.L., Yoshida, R., Zhang, H., 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, M., De Pasquale, S., Giusti, P., Iacobucci, G., Laurenti, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Amelung, C., Bornheim, A., Brock, I., Coboken, K., Crittenden, J., Deffner, R., Eckert, M., Grothe, M., Hartmann, H., Heinloth, K., Heinz, L., Hilger, E., Jakob, H.-P., Kappes, A., Katz, U.F., Kerger, R., Paul, E., Pfeiffer, M., Schnurbusch, H., Weber, A., Wieber, H., Bailey, D.S., Barret, O., Cottingham, W.N., Foster, B., Hall-Wilton, R., Heath, G.P., Heath, H.F., McFall, J.D., Piccioni, D., Roff, D.G., Scott, J., Tapper, R.J., Capua, M., Iannotti, L., Mastroberardino, A., Schioppa, M., Susinno, G., Kim, J.Y., Lee, J.H., Lim, I.T., Pac, M.Y., Caldwell, A., Cartiglia, N., Jing, Z., Liu, W., Mellado, B., Parsons, J.A., Ritz, S., Sampson, S., Sciulli, F., Straub, P.B., Zhu, Q., Borzemski, P., Chwastowski, J., Eskreys, A., Figiel, J., Klimek, K., Przybycien, M.B., Zawiejski, L., Adamczyk, L., Bednarek, B., Bukowy, M., Czermak, A.M., Jelen, K., Kisielewska, D., Kowalski, T., Rulikowska-Zarebska, E., Suszycki, L., Zajac, J., Dulinski, Z., Kotanski, A., Bauerdick, L.A.T., Behrens, U., Beier, H., Bienlein, J.K., Desler, K., Drews, G., Fricke, U., Goebel, F., Gottlicher, P., Graciana, 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., Notz, D., Pellegrino, A., Pelucchi, F., Piotrzkowski, K., Rohde, M., Roldan, J., Ryan, J.J., Saull, P.R.B., Savin, A.A., Schneekloth, U., Schwarzer, O., Selonke, F., Sievers, M., Stonjek, S., Surrow, B., Tassi, E., Westphal, D., Wolf, G., Wollmer, U., Youngman, C., Zeuner, W., Burow, B.D., Coldewey, C., Grabosch, H.J., Meyer, A., Schlenstedt, S., Barbagli, G., Gallo, E., Pelfer, P., Maccarrone, G., Votano, L., Bamberger, A., Eisenhardt, S., Markun, P., Raach, H., Trefzger, T., Wolfle, S., Bromley, J., 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, D., Klanner, R., Lohrmann, E., Poelz, G., Zetsche, F., Bacon, T.C., Butterworth, I., Cole, J.E., Howell, G., Lamberti, L., Long, K.R., Miller, D.B., Pavel, N., Prinias, A., Sedgbeer, J.K., Sideris, D., Walker, R., Mallik, U., Wang, S.M., Wu, J.T., Cloth, P., Filges, D., Ishii, T., Kuze, M., Suzuki, I., Tokushuku, K., Yamada, S., Yamauchi, K., Yamazaki, Y., 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., Hervas, L., Labarga, L., del Peso, J., Puga, J., Redondo, I., Terron, J., de Troconiz, J.F., Corriveau, F., Hanna, D.S., Hartmann, J., Murray, W.N., Ochs, A., Riveline, M., Stairs, D.G., St-Laurent, M., Tsurugai, T., Bashkirov, V., Dolgoshein, B.A., Stifutkin, A., Bashindzhagyan, G.L., Ermolov, P.F., Golubkov, Y.A., Khein, L.A., Korotkova, N.A., Korzhavina, I.A., Kuzmin, V.A., Lukina, O.Y., Proskuryakov, A.S., Shcheglova, L.M., Solomin, A.N., Zotkin, S.A., Bokel, C., Botje, M., Brummer, N., Engelen, J., Koffeman, E., Kooijman, P., van Sighem, A., Tiecke, H., Tuning, N., Verkerke, W., Vossebeld, J., Wiggers, L., de Wolf, E., Acosta, D., Bylsma, B., Durkin, L.S., Gilmore, J., Ginsburg, C.M., Kim, C.L., Ling, T.Y., Nylander, P., Romanowski, T.A., Blaikley, H.E., Cashmore, R.J., Cooper-Sarkar, A.M., Devenish, R.C.E., Edmonds, J.K., Grobe-Kentter, J., Harnew, N., Nath, C., Noyes, V.A., Quadt, A., Ruske, O., Tickner, J.R., Walczak, R., Waters, D.S., Bertolin, A., Brugnera, R., Carlin, R., Dal Corso, F., Dosselli, U., Limentani, S., Morandin, M., Posocco, M., Stanco, L., Stroili, R., Voci, C., Oh, B.Y., Okrasinski, J.R., Toothacker, W.S., Whitmore, J.J., Iga, Y., D'Agostini, G., Marini, G., Nigro, A., Raso, M., Hart, J.C., McCubbin, N.A., Shah, T.P., Epperson, D., Heusch, C., Rahn, J.T., Sadrozinski, H.F.-W., Seiden, A., Wichmann, R., Williams, D.C., Abramowicz, H., Briskin, G., Dagan, S., Kananov, S., Levy, A., Abe, T., Fusayasu, T., Inuzuka, M., Nagano, K., Umemori, K., Yamashita, T., Hamatsu, R., Hirose, T., Homma, K., Kitamura, S., Matsushita, T., Nishimura, T., Arneodo, M., Cirio, R., Costa, M., Ferrero, M.I., Maselli, S., Monaco, V., Peroni, C., Petrucci, M.C., Ruspa, M., Sacchi, R., Solano, A., Staiano, A., Dardo, M., Bailey, D.C., Fagerstroem, C.-P., Galea, R., Koop, T., Levman, G.M., Martin, J.F., Orr, R.S., Polenz, S., Sabetfakhri, A., Simmons, D., Butterworth, J.M., Catterall, C.D., Hayes, M.E., Heaphy, E.A., Jones, T.W., Lane, J.B., Saunders, R.L., Sutton, M.R., Wing, M., Ciborowski, J., Grzelak, G., Nowak, R.J., Pawlak, J.M., Pawlak, R., Smalska, B., Tymieniecka, T., Wroblewski, A.K., Zakrzewski, J.A., Zarnecki, A.F., Adamus, M., Deppe, O., Eisenberg, Y., Hochman, D., Karshon, U., Badgett, W.F., Chapin, D., Cross, R., Foudas, C., Mattingly, S., Reeder, D.D., Smith, W.H., Vaiciulis, A., Wildschek, T., Wodarczyk, M., Deshpande, A., Dhawan, S., Hughes, V.W., Bhadra, S., Frisken, W.R., Khakzad, M., and Schmidke, W.B.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:European Physical Journal C
ISSN:1434-6044
ISSN (Online):1434-6052

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