Measurement of the electron structure function F2e at LEP energies

Measurement of the electron structure function F2e at LEP energies

The hadronic part of the electron structure function F2e has been measured for the first time, using e+e− data collected by the DELPHI experiment at LEP, at centre-of-mass energies of s=91.2–209.5 GeV. The data analysis is simpler than that of the measurement of the photon structure function. The el...

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Veröffentlicht in:Physics letters. B 2014-10, Vol.737 (C), p.39-47
Hauptverfasser: Abreu, P., Amato, S., Anashkin, E., Andreazza, A., Andringa, S., Antilogus, P., Ask, S., Asman, B., Baillon, P., Barbier, R., Baubillier, M., Besancon, M., Bluj, M., Botner, O., Bouquet, B., Buschmann, P., Chliapnikov, P., Collins, P., Contri, R., Della Ricca, G., De Boer, W., Di Ciaccio, L., Eigen, G., Fernandez, J., Foeth, H., Fokitis, E., Fuster, J., Golob, B., Grosdidier, G., Haag, C., Hallgren, A., Hamacher, K., Hedberg, V., Jackson, J.N., Jarlskog, G., Jarry, P., Johansson, E.K., Jungermann, L., Katsanevas, S., Katsoufis, E., Kjaer, N.J., Krumstein, Z., Leinonen, L., Malek, A., Maltezos, S., Mandl, F., Marco, J., Marin, J-C., Markou, A., Masik, J., Matorras, F., Mazzucato, F., Mc Nulty, R., Montenegro, J., Moraes, D., Morettini, P., Muenich, K., Mulders, M., Myklebust, T., Nassiakou, M., Obraztsov, V., Olshevski, A., Onofre, A., Ouraou, A., Oyanguren, A., Paiano, S., Palacios, J.P., Pape, L., Peralta, L., Pozdniakov, V., Pullia, A., Rehn, J., Rodriguez, D., Ronchese, P., Roudeau, P., Rovelli, T., Ruhlmann-Kleider, V., Ryabtchikov, D., Sadovsky, A., Sander, C., Schwickerath, U., Slominski, W., Stanitzki, M., Stocchi, A., Szczekowski, M., Tegenfeldt, F., Tonazzo, A., Treille, D., Troncon, C., Turluer, M-L., Tyapkin, I.A., Valenti, G., Vegni, G., Venus, W., Vitale, L., Weiser, C., Wicke, D., Wickens, J., Witek, M., Zupan, M.
Format: Artikel
Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:The hadronic part of the electron structure function F2e has been measured for the first time, using e+e− data collected by the DELPHI experiment at LEP, at centre-of-mass energies of s=91.2–209.5 GeV. The data analysis is simpler than that of the measurement of the photon structure function. The electron structure function F2e data are compared to predictions of phenomenological models based on the photon structure function. It is shown that the contribution of large target photon virtualities is significant. The data presented can serve as a cross-check of the photon structure function F2γ analyses and help in refining existing parameterisations.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2014.08.012