The Q2 evolution of the hadronic photon structure function Fγ2 at LEP

descriptionPublicationkeyboard_double_arrow_right Article 01 Feb 1999 English Publisher:Elsevier BVJournal:Physics Letters B, volume 447, pages 147-156 (issn: 0370-2693,

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Authors: Acciarri, M.; Achard, P.; Anderhub, H.; D'Alessandro, R.; de Asmundis, R.; Deglon, P.; Degre, A.; +193 Authors

Acciarri, M.; Achard, P.; Anderhub, H.; D'Alessandro, R.; de Asmundis, R.; Deglon, P.; Degre, A.; Deiters, K.; Della Volpe, D.; Denes, P.; De Notaristefani, F.; De Salvo, A.; Diemoz, M.; Andreev, Valery P.; van Dierendonck, D.; Di Lodovico, F.; Dionisi, C.; Dittmar, M.; Dominguez, A.; Doria, A.; Dova, M. T.; Duchesneau, D.; Dufournand, D.; Duinker, P.; Angelescu, T.; Duran, I.; Easo, S.; El Mamouni, H.; Engler, A.; Eppling, F. J.; Erne, F. C.; Extermann, P.; Fabre, M.; Faccini, R.; Falagan, M. A.; Anselmo, F.; Falciano, S.; Favara, A.; Fay, J.; Fedin, O.; Felcini, M.; Ferguson, T.; Ferroni, F.; Fesefeldt, H.; Fiandrini, E.; Field, J. H.; Arefev, A.; Filthaut, F.; Fisher, P. H.; Fisk, I.; Forconi, G.; Fredj, L.; Freudenreich, K.; Furetta, C.; Galaktionov, Iouri; Ganguli, S. N.; Garcia-Abia, Pablo; Azemoon, T.; Gataullin, M.; Gau, S. S.; Gentile, S.; Gheordanescu, N.; Giagu, S.; Goldfarb, S.; Gong, Z. F.; Gratta, G.; Gruenewald, M. W.; van Gulik, R.; Aziz, T.; Gupta, V. K.; Gurtu, A.; Gutay, L. J.; Haas, D.; Hartmann, B.; Hasan, A.; Hatzifotiadou, D.; Hebbeker, T.; Herve, Alain; Hidas, P.; Bagnaia, P.; Hirschfelder, J.; Hofer, H.; Holzner, G.; Hoorani, H.; Hou, S. R.; Iashvili, I.; Jin, B. N.; Jones, Lawrence W.; de Jong, P.; Josa-Mutuberria, I.; Baksay, L.; Khan, R. A.; Kamrad, D.; Kapustinsky, J. S.; Kaur, M.; Kienzle-Focacci, M. N.; Kim, D.; Kim, D. H.; Kim, J. K.; Kim, S. C.; Kinnison, W. W.; Balandras, A.; Kirkby, A.; Kirkby, David P.; Kirkby, Jasper; Kiss, D.; Kittel, W.; Klimentov, A.; Konig, A. C.; Kopp, A.; Korolko, I.; Koutsenko, V.; Adriani, O.; Ball, R. C.; Kraemer, R. W.; Krenz, W.; Kunin, A.; Lacentre, P.; Ladron de Guevara, P.; Laktineh, I.; Landi, G.; Lapoint, C.; Lassila-Perini, K.; Laurikainen, P.; Banerjee, S.; Lavorato, A.; Lebeau, M.; Lebedev, A.; Lebrun, P.; Lecomte, P.; Lecoq, P.; Le Coultre, P.; Lee, H. J.; Le Goff, J. M.; Leiste, R.; Banerjee, Sw.; Leonardi, Emanuele; Levchenko, P.; Li, C.; Lin, C. H.; Lin, W. T.; Linde, F. L.; Lista, L.; Liu, Z. A.; Lohmann, W.; Longo, E.; Banicz, K.; Lu, W.; Lu, Y. S.; Lubelsmeyer, K.; Luci, C.; Luckey, David; Luminari, L.; Lustermann, W.; Ma, W. G.; Maity, M.; Majumder, G.; Barczyk, A.; Malgeri, L.; Malinin, A.; Mana, C.; Mangeol, D.; Marchesini, P.; Marian, G.; Martin, J. P.; Marzano, F.; Massaro, G. G. G.; Mazumdar, K.; Barillere, R.; McNeil, R. R.; Mele, S.; Merola, L.; Meschini, M.; Metzger, W. J.; von der Mey, M.; Migani, D.; Mihul, A.; Milcent, H.; Mirabelli, G.; Barone, L.; Mnich, J.; Molnar, P.; Monteleoni, B.; Moulik, T.; Mount, R.; Muanza, G. S.; Muheim, F.; Muijs, A. J. M.; Nahn, S.; Napolitano, M.; Bartalini, P.; Nessi-Tedaldi, F.; Newman, H.; Niessen, T.; Nippe, A.; Nisati, A.; Kluge, Hannelies; Oh, Y. D.; Organtini, G.; Ostonen, R.;

doi: 10.1016/s0370-2693(98)01552-4

handle: 11588/476447 , 11572/32770 , 11573/242367 , 11391/165203 , 2158/775548

The Q2 evolution of the hadronic photon structure function Fγ2 at LEP

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Abstract

New measurements at a centre-of-mass energy of 183 GeV of the hadronic photon structure function F2(x) in the Q2 interval, 9 GeV2 Q2 30 GeV2, are presented. The data, collected in 1997, with the L3 detector, correspond to an integrated luminosity of 51.9 pb-1. Combining with the data taken at centre-of-mass energies of 91 GeV, the evolution of F2 with Q2 is measured in the Q2 range from 1.2 GeV2 to 30 GeV2. F2 shows a linear growth with ln(Q2); the value of the slope (alpha-1)dF2(Q2)/dln(Q2) is measured in two x bins from 0.01 to 0.2 and is higher than predictions.

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Keywords

PAIR PRODUCTION, Photon photon: interaction, momentum transfer dependence, 530, Momentum transfer dependence, photon photon: interaction, Q2, Hadron: multiple production, L3 EXPERIMENT; PAIR PRODUCTION; HIGH-ENERGIES; DETECTOR; TRIGGER; Q2, hadron: multiple production, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], photon: structure function, Experimental results, Exchange: two-photon, info:eu-repo/classification/ddc/530, DETECTOR, L3 EXPERIMENT, HIGH-ENERGIES, TRIGGER, exchange: two-photon, 500, CERN LEP Stor, electron positron: colliding beams, 183 GeV-cms, 520, Photon: structure function, Electron positron: colliding beams, L3, 500.2, experimental results

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The Q**2 evolution of the hadronic photon structure function F2(gamma) at LEP.
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"Table 1" of "The Q**2 evolution of the hadronic photon structure function F2(gamma) at LEP."
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