Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-07-11
Nucl.Phys.B487:283-310,1997; Erratum-ibid.B500:621-622,1997
Physics
High Energy Physics
High Energy Physics - Phenomenology
32 pages, 5 figures. Four equations are changed to account for a technical error. The qualitative discussion of the paper is n
Scientific paper
10.1016/S0550-3213(96)00623-2
Order $\alpha_s$-corrections to the diffractive structure functions $F_L^D$ and $F_2^D$ at large $Q^2$ and small $x$ are evaluated in the semiclassical approach, where the initial proton is treated as a classical colour field. The diffractive final state contains a fast gluon in addition to a quark-antiquark pair. Two of these partons may have large transverse momentum. Our calculations lead to an intuitive picture of deep-inelastic diffractive processes which is very similar to Bjorken's aligned-jet model. Both diffractive structure functions contain leading twist contributions from high-$p_{\perp}$ jets.
Buchmüller Wilfried
Hebecker Arthur
McDermott M. F.
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