Hadron production in diffractive deep-inelastic scattering

Hadron production in diffractive deep-inelastic scattering

Characteristics of hadron production in diffractive deep-inelastic positron-proton scattering are studied using data collected in 1994 by the H1 experiment at HERA. The following distributions are measured in the centre-of-mass frame of the photon dissociation system: the hadronic energy flow, the F...

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Veröffentlicht in:Physics letters. B 1998-05, Vol.428 (1), p.206-220
Hauptverfasser: Adloff, C., Andreev, V., Baranov, P., Bassler, U., Beck, M., Biddulph, P., Borras, K., Brisson, V., Brückner, W., Bruel, P., Brune, C., Büsser, F.W., Burke, S., Cocks, S., Coughlan, J.A., Cousinou, M.-C., Cozzika, G., Daum, K., De Wolf, E.A., Delcourt, B., Diaconu, C., Dirkmann, M., Donovan, K.T., Ebert, J., Efremenko, V., Enzenberger, M., Felst, R., Ferencei, J., Ferrarotto, F., Fomenko, A., Formánek, J., Franke, G., Gebauer, M., Glazov, A., Gorelov, I., Grindhammer, G., Hadig, T., Heremans, R., Hladký, J., Holtom, T., Kaufmann, H.H., Knies, G., Köhne, J.H., Kolya, S.D., Korbel, V., Kotelnikov, S.K., Krämerkämper, T., Krücker, D., Levonian, S., Lipinski, J., List, B., Martin, G., Martyn, H.-U., Maxfield, S.J., Meier, K., Meyer, J., Meyer, P.-O., Mohrdieck, S., Moreau, F., Murı́n, P., Nagovizin, V., Naroska, B., Newton, D., Nguyen, H.K., Olsson, J.E., Panaro, E., Patel, G.D., Pawletta, H., Peppel, E., Perez, E., Reimer, P., Reisert, B., Rick, H., Scheins, J., Schleper, P., Schmidt, D., Schröder, V., Schultz-Coulon, H.-C., Schwab, B., Semenov, A., Siewert, U., Soloviev, Y., Spiekermann, J., Stella, B., Stiewe, J., Tchernyshov, V., Thompson, P.D., Todenhagen, R., Valkárová, A., Van Esch, P., Van Mechelen, P., Wallny, R., Weber, G., Werner, M., West, L.R., Wilksen, T., Winter, G.-G., Žáček, J., Zálešák, J., Zsembery, J.
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Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:Characteristics of hadron production in diffractive deep-inelastic positron-proton scattering are studied using data collected in 1994 by the H1 experiment at HERA. The following distributions are measured in the centre-of-mass frame of the photon dissociation system: the hadronic energy flow, the Feynman- x ( x F ) variable for charged particles, the squared transverse momentum of charged particles ( p T ∗2 ), and the mean p T ∗2 as a function of x F . These distributions are compared with results in the γ ∗p centre-of-mass frame from inclusive deep-inelastic scattering in the fixed-target experiment EMC, and also with the predictions of several Monte Carlo calculations. The data are consistent with a picture in which the partonic structure of the diffractive exchange is dominated at low Q 2 by hard gluons.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(98)00426-2