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Measurement of the Proton-Longitudinal-Structure Function F L at HERA

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Progress in HighEnergy Physics and Nuclear Safety

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Abstract

The longitudinal structure function F L(x,Q 2) of the proton has been measured at the HERA collider in positron—proton deep inelastic scattering in the H1 and ZEUS experiment. Protons of 920 GeV,575 GeV and 460 GeV have been collided with positrons of 27.5 GeV. In the H1 experiment (ZEUS experiment) the Q 2 range 12 GeV2 < Q 2 < 800 GeV2(24 GeV2 < Q 2 < 110 GeV2) corresponding to 0.00028 < x < 0.0353(6.10−4 < x < 0.005) was covered. The results are consistent with each other and with NLO QCD predictions. Parton distribution functions derived from a combined fit of the H1 and ZEUS measurements of F 2(x,Q 2) are compared with recent global fits.

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Author information

Authors and Affiliations

  1. Max-Planck-Institute for Physics (Werner-Heisenberg-Institute), Munich, Germany

    G. W. Buschhorn

Authors
  1. G. W. Buschhorn
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Editor information

Editors and Affiliations

  1. Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine

    Viktor Begun  & László L. Jenkovszky  & 

  2. The Andrzej Soltan Institute for Nuclear Studies, Otwock-Swierk, Poland

    Aleksander Polański

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Buschhorn, G.W. (2009). Measurement of the Proton-Longitudinal-Structure Function F L at HERA. In: Begun, V., Jenkovszky, L.L., Polański, A. (eds) Progress in HighEnergy Physics and Nuclear Safety. NATO Science for Peace and Security Series B: Physics and Biophysics. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-2287-5_7

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