Multiplicity fluctuations in one- and two-dimensional angular intervals compared with analytic QCD calculations

Multiplicity fluctuations in one- and two-dimensional angular intervals compared with analytic QCD calculations

Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in e + e − annihilations into hadrons at LEP energies. The measurements are compared with analytical perturbative QCD calculations for the corresponding multiparton system, usi...

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Veröffentlicht in:Physics letters. B 1999, Vol.457 (4), p.368-382
Hauptverfasser: Abreu, P., Almehed, S., Andreazza, A., Arnoud, Y., Augustin, J-E., Barbier, R., Battaglia, M., Baubillier, M., Berggren, M., Bonesini, M., Boonekamp, M., Botner, O., Bugge, L., Calvi, M., Camporesi, T., Cattai, A., Chaussard, L., Chochula, P., Collins, P., Crepe, S., Dijkstra, H., Ekspong, G., Erzen, B., Falk, E., Ferrer-Ribas, E., Firestone, A., Fontanelli, F., Fuster, J., Gavillet, Ph, Gil, I., Goncalves, P., Gonzalez Caballero, I., Gorn, L., Gorski, M., Gracco, V., Green, C., Hahn, S., Hedberg, V., Hernandez, J.J., Hrubec, J., Jackson, J.N., Jarlskog, G., Jarry, P., Kjaer, N.J., Krstic, P., Krumstein, Z., Kubinec, P., Lauhakangas, R., Lethuillier, M., Lopez-Fernandez, R., Loukas, D., MacNaughton, J., Malmgren, T.G.M., Mandl, F., Mc Nulty, R., Mirabito, L., Mitaroff, W.A., Moch, M., Monge, M.R., Mulet-Marquis, C., Muryn, B., Navarria, F.L., Neufeld, N., Nielsen, B.S., Nikolenko, M., Nomokonov, V., Nygren, A., Obraztsov, V., Orazi, G., Palacios, J., Phillips, H.T., Piotto, E., Pol, M.E., Privitera, P., Renton, P.B., Richard, F., Ridky, J., Roudeau, P., Ruiz, A., Salt, J., Schneider, H., Sekulin, R., Sheridan, A., Simard, L., Simonetto, F., Sisakian, A.N., Sokolov, A., Squarcia, S., Stocchi, A., Tchikilev, O., Tomaradze, A., Tome, B., Tyapkin, I.A., Van Eldik, J., Van Vulpen, I., Ventura, L., Verbeure, F., Vodopyanov, A.S., Weiser, C., Zimin, N.I.
Format: Artikel
Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in e + e − annihilations into hadrons at LEP energies. The measurements are compared with analytical perturbative QCD calculations for the corresponding multiparton system, using the concept of Local Parton Hadron Duality. Some qualitative features are confirmed by the data but substantial quantitative deviations are observed.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(99)00550-X