The evolution of σγP with coherence length

Caldwell, Allen (Max Planck Institute for Physics (Werner-Heisenberg-institut) Munich, Germany)

11 July 2016

Abstract: Assuming the form at fixed Q2 for the behavior of the virtual-photon proton scattering cross section, where l is the coherence length of the photon fluctuations, it is seen that the extrapolated values of for different Q2 cross for fm. It is argued that this behavior is not physical, and that the behavior of the cross sections must change before this coherence length l is reached. This could set the scale for the onset of saturation of the parton densities in the photon, and thereby saturation of parton densities in general.

Published in: New J. Phys. 18 (2016) 073019
Published by: Institute of Physics Publishing/Deutsche Physikalische Gesellschaft
DOI: 10.1088/1367-2630/18/7/073019
arXiv: 1601.04472
License: CC-BY-3.0

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