ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract. We give a detailed account of the recently formulated generalised vector dominance/colour-dipole picture (GVD/CDP) of deep-inelastic scattering at low $x\cong Q^2/W^2$ , including photoproduction. The approach, based on $\gamma^* (q \bar q)$ transitions, $q \bar q$ propagation and diffractive $(q \bar q)p$ scattering via the generic structure of the two-gluon exchange, provides a unique and quantitatively successful theory for the $\gamma^* p$ total cross section, $\sigma_{\gamma^* p} (W^2,Q^2)$ , at low x. The GVD/CDP is shown to imply the empirical low-x scaling law, $\sigma_{\gamma^* p} (W^2,Q^2)=\sigma_{\gamma^* p} (\eta)$ with $\eta=(Q^2+m_0^2)/\Lambda^2(W^2)$ , that was established by a model-independent analysis of the experimental data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100520100650
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