Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-10-17
Phys.Atom.Nucl. 61 (1998) 1566-1569; Yad.Fiz. 61 (1998) 1678-1681
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, LATEX, 2 fugures
Scientific paper
A simple relativistic model is suggested that elucidates qualitatively the quark-antiquark distribution within virtual photon. The diffractive hadroproduction in DIS initiated by highly virtual photon $\gamma ^{*}(Q^2)$ is discussed in more detail. The main result is that the contribution of large transverse scale $q\bar q$-fluctuations of the photon is just sufficient to produce the cross section of its hadron-like strong interaction (in particular, its diffraction into hadrons) of the same $Q^2$-dependence as the total cross section of $\gamma ^{*}p$-interaction. It is why observed in DIS fraction of photon diffractive hadroproduction in $\gamma^{*}p$\enspace interaction is quite large and does not vary with $Q^2$.
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