Study of the effective transverse momentum of partons in the proton using prompt photons in photoproduction at HERA

Chekanov, S. et al. (2001) Study of the effective transverse momentum of partons in the proton using prompt photons in photoproduction at HERA. Physics Letters B, 511(1), 19 -32. (doi: 10.1016/S0370-2693(01)00615-3)

Abstract

The photoproduction of prompt photons, together with an accompanying jet, has been measured with the ZEUS detector at HERA using an integrated luminosity of 38.6 pb/sup -1/. A study of the effective transverse momentum, (k/sub T/), of partons in the proton, as modelled within the framework of the PYTHIA Monte Carlo, gives a value of (k/sub T/)=1.69+or-0.18/sub -0.20//sup +0.18/ GeV for the gamma p centre-of-mass energy range 134 lt W lt 251 GeV. This result is in agreement with the previously observed trend in hadron-hadron scattering for (k/sub T/) to rise with interaction energy.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Saxon, Professor David and Bussey, Dr Peter and Doyle, Professor Anthony and Skillicorn, Professor Ian
• Authors: Chekanov, S., Derrick, M., Krakauer, D., Magill, S., Musgrave, B., Pellegrino, A., Repond, J., Stanek, R., Yoshida, R., Mattingly, M.C.K., Antonioli, P., Bari, G., Basile, M., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cara Romeo, G., Cifarelli, L., Cindolo, F., Contin, A., Corradi, M., de Pasquale, S., Giusti, P., Iacobucci, G., Levi, G., Margotti, A., Massam, T., Nania, R., Palmonari, F., Pesci, A., Sartorelli, G., Zichichi, A., Aghuzumtsyan, G., Brock, I., Goers, S., Hartmann, H., Hilger, E., Irrgang, P., Jakob, H.P., Kappes, A., Katz, U.F., Kerger, R., Kind, O., Paul, E., Rautenberg, J., Schnurbusch, H., Stifutkin, A., Tandler, J., Voss, K.C., Wber, A., Wieber, H., 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., Capua, M., Mastroberardino, A., Schioppa, M., Susinno, G., Jeoung, H.Y., Kim, J.Y., Lee, J.H., Lim, I.T., Ma, K.J., Pac, M.Y., Caldwell, A., Helbich, M., Liu, W., Liu, X., Mellado, B., Paganis, S., Sampson, S., Schmidke, W.B., Sciulli, F., Chwastowski, J., Eskreys, A., Figiel, J., Kilmek, K., Olkiewicz, K., Przybycien, M.B., Stopa, P., Zawiejski, L., Bednarek, B., Jelen, K., Kisielewska, D., Kowal, A.M., Kowalski, T., Prybycien, M., Rulikowska-Zarebska, E., Suszycki, L., Szuba, D., Kotanski, A., Bauerdick, L.A.T., Behrens, U., Borras, K., Chiochia, V., Crittenden, J., Dannheim, D., Desler, K., Drews, G., Fox-Murphy, A., Fricke, U., Geiser, A., Goebel, F., Gottlicher, P., Graciani, R., Haas, T., Hain, W., Hartner, G.F., Hebbel, K., Hillert, S., Koch, W., Kotz, U., Kowalski, H., Labes, H., Lohr, B., Mankel, R., Martens, J., Martinez, M., Milite, M., Moritz, M., Notz, D., Petrucci, M.C., Polini, A., Savin, A.A., Schneekloth, U., Selonke, F., Stonjek, S., Wolf, G., Wollmer, U., Whitmore, J.J., Wichmann, R., Youngman, C., Zeuner, W., Coldewey, C., Lopez-Duran Viani, A., Meyer, A., Scklenstedt, S., Barbagli, G., Gallo, E., Parenti, A., Pelfer, P.G., Bamberger, A., Benen, A., Coppola, N., Markun, P., Raach, H., Wolfle, S., Bell, M., Bussey, P.J., Doyle, A.T., Glasman, C., Lee, S.W., Lupi, A., McCance, G.J., Saxon, D.H., Skillicorn, I.O., Bodmann, B., Gendner, N., Holm, U., Salehi, H., Wick, K., Yildirim, A., Ziegler, A., Carli, T., Garfagnini, A., Gialas, I., Lohrmann, E., Foudas, C., Goncalo, R., Long, K.R., Metlica, F., Miller, D.B., Tapper, A.D., Walker, R., Cloth, P., Figles, D., Ishii, T., Kuze, M., Nagano, K., Tokushuku, K., Yamada, S., Yamazaki, Y., Barakaev, A.N., Boos, E.G., Pokrovskiy, N.S., Zhautykov, B.O., Ahn, S.H., Lee, S.B., Park, S.K., Lim, H., Son, D., Barreiro, F., Garcia, G., Gonzalez, O., Labarga, L., del Peso, J., Redondo, I., Terron, J., Vazquez, M., Barbi, M., Corriveau, F., Padhi, S., Stairs, D.G., Wing, M., Tsurugai, T., Antonov, A., Bashkirov, V., Danilov, P., Dolgoshein, B.A., Gladkov, D., Sonovtsev, V., Suchkov, S., Dementiev, R.K., Ermolov, P.F., Golubkov, Y.A., Katkov, I.I., Khein, L.A., Korotkova, N.A., Korzhavina, I.A., Kuzmin, V.A., Levchenko, B.B., Lukina, O.Y., Proskuryakov, A.S., Shcheglova, L.M., Solomin, A.N., Vlasov, N.N., Zotkin, S.A., Bokel, C., Botje, M., Engelen, J., Grijoink, S., Koffeman, E., Kooijman, P., Schagen, S., van Sighem, A., Tassi, E., Tiecke, H., Tuning, N., Velthuis, J.J., Vossebeld, J., Wiggers, L., Brummer, N., Bylsma, B., Durkin, L.S., Gilmore, J., Ginsburg, C.M., and Kim, C.L.
• Subjects: Q Science > QC Physics
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physics Letters B
• Publisher: Elsevier BV
• ISSN: 0370-2693
• ISSN (Online): 1873-2445