Logarithmic Rising of p Total Cross Section
نویسندگان
چکیده
منابع مشابه
The Γ * P Total Cross Section and Elastic Diffraction
The empirical scaling law, wherein the total photoabsorption cross section depends on the single variable η = (Q 2 + m 2 0)/Λ 2 (W 2), provides empirical evidence for saturation in the sense of σγ * p(W 2 , Q 2)/σγp(W 2) → 1 for W 2 → ∞ at fixed Q 2. The total photoabsorption cross section is related to elastic diffraction in terms of a sum rule. The excess of diffractive production over the el...
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The scaling in σ γ * p cross sections (for Q 2 /W 2 << 1) in terms of the scaling variable η = (Q 2 + m 2 0)/Λ 2 (W 2) is interpreted in the generalized vector dominance/color-dipole picture (GVD/CDP). The quantity Λ 2 (W 2) is identified as the average gluon transverse momentum absorbed by the q ¯ q state, < l 2 >= (1/6)Λ 2 (W 2). At any Q 2 , for W 2 → ∞, the cross sections for virtual and re...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1974
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.52.361