Color transparency and saturation in QCD-Reference-Cited by-同舟云学术

Color transparency and saturation in QCD

Published:2014-08-20 Issue:25 Volume:29 Page:1430028
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

Schildknecht Dieter¹²

Affiliation:

1. Fakultät für Physik, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany

2. Max-Planck-Institute for Physics, Föhringer Ring 6, 80805 Munich, Germany

Abstract

We review the theoretical interpretation of deep-inelastic electron–proton scattering at low values of the Bjorken variable x ≃Q2/W2 ≲ 0.1. The process proceeds via the interaction of quark–antiquark [Formula: see text] color-dipole fluctuations of the (virtual) photon with the proton. In terms of the forward Compton scattering amplitude, two reaction channels contribute to the interaction of the [Formula: see text] color dipole with the gluon field in the proton. Dependent on the kinematics, there is either color transparency, corresponding to a cancellation of the amplitudes for the two reaction channels, or saturation, occurring when the process is dominated by a single interaction channel. The connection between the color-dipole picture and the pQCD improved parton model is elaborated upon.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732314300286

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