Abstract
Deep inelastic electron-nucleon scattering has been an interesting topic in high energy physics since eight years. At that time the first experimental evidence of scaling [1] as predicted by Bjorken [2] was observed; i.e. for Q2 > 1 GeV2 the structure function νW2 (Q2, v) seemed to become a function of ω = 2 Mν/Q2 only. Since then scaling has been extensively studied both experimentally and theoretically. During the last two years the available data have become considerably more accurate due to the experimental programme carried out at SLAC [3, 4]. The explored kinematical range has furthermore been extended to higher Q2 at high co by two experiments performed with the muon beam of Fermilab [5, 6]. As a consequence some indications for deviation from Bjorken scaling are now being observed, persisting also if the (previously favored) variable ω’ = ω + M2/Q2 is used instead of ω. The situation was described by Bjorken [7] in the summary talk of the SLAC-Conference last year in the following way: “I think the whole question of the scaling violations is going to be one which isn’t answered in 25 words or less, or in a few minutes or even a few months. The subject has become quite sophisticated and, unless the scaling violation in the next-generation experiments at Q2 ≈ 100 greatly exceeds the 20 % level, it is going to take a long time to straighten out what those scaling violations really mean”.
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© 1977 Friedr. Vieweg & Sohn Verlagsgesellschaft mbH, Braunschweig
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Drees, J. (1977). Deep Inelastic Charged Lepton-Nucleon Scattering. In: Faissner, H., Reithler, H., Zerwas, P. (eds) Proceedings of the International Neutrino Conference Aachen 1976. Vieweg+Teubner Verlag. https://doi.org/10.1007/978-3-322-90614-4_42
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DOI: https://doi.org/10.1007/978-3-322-90614-4_42
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