Autor: |
Schildknecht, Dieter, Surrow, Bernd, Tentyukov, Mikhail |
Předmět: |
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Zdroj: |
Modern Physics Letters A; 9/14/2001, Vol. 16 Issue 28, p1829, 11p |
Abstrakt: |
Including the new HERA data, the γ[sup *]p total cross-section is analyzed in the gen- eralized vector dominance/color-dipole picture (GVD/CDP) that contains scaling in η = (Q² + m²[sub 0])/Λ²(W²), where Λ²(W²) is an increasing function of W². At any Q² for W² → ∞, the cross-sections for virtual and real photons become identical, σ[sub γ[sup *]p](W², Q²)/σ[sub γp](W²) → 1. The gluon density deduced from the color-dipole crosssection fulfills the leading order DGLAP relationship. Evolution à la DGLAP breaks down for η ... 0.1. [ABSTRACT FROM AUTHOR] |
Databáze: |
Complementary Index |
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