Separation of minimum and higher twist in photoproduction of high-PT mesons

Autor: Apsimon, R. J., Atkinson, M., Baake, M., Bagdasarian, L. S., Barberis, D., Brodbeck, T. J., Brook, N., Charity, T., Clegg, A. B., Coyle, P., Danaher, S., Danagulian, S., Davenport, M., Dickinson, B., Diekmann, B., Donnachie, A., Doyle, A. T., Eades, J., Ellison, R. J., Flower, P. S., Foster, J. M., Galbraith, W., Galumian, P. I., Gapp, C., Gebert, F., Hallewell, G., Heinloth, K., Henderson, R. C. W., Hickman, M. T., Hoeger, K. C., Holzkamp, A., Holzkamp, S., Hughes-Jones, R. E., Ibbotson, M., Ingelman, G., Jakob, H. P., Joseph, D., Keemer, N. R., Kingler, J., Koersgen, G., Kolya, S. D., Lafferty, G. D., McCann, H., McClatchey, R., McManus, C., Mercer, D., Morris, J. A. G., Morris, J. V., Newton, D., O'Connor, A., Oedingen, R., Oganesian, A. G., Ottewell, P. J., Paterson, C. N., Paul, E., Reid, D., Rotscheidt, H., Sharp, P. H., Soeldner-Rembold, S., Thacker, N. A., Thompson, L., Thompson, R. J., Waterhouse, J., Weigend, A. S., Wilson, G. W.
Zdroj: Zeitschrift für Physik C Particles and Fields; June 1991, Vol. 50 Issue: 2 p179-184, 6p
Abstrakt: Photo- and hadroproduction data in the beam energy range 65–175 GeV have been studied with a view to isolating higher-twist processes in photoproduction from other point-like and hadron-like contributions. With selection of charged tracks havingpT>2 GeV/c and 0.28F<0.84 indications of a higher twist contribution have been found at a level that is consistent with QCD expectations.
Databáze: Supplemental Index
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