The elastic QCD dipole amplitude at one-loop

Abstract

We derive the analytic expression of the two one-loop dipole contributions to the elastic 4-gluon amplitude in QCD. The first one corresponds to the double QCD pomeron exchange, the other to an order alpha^2 correction to one-pomeron exchange. Both are expressed in terms of the square of the recently derived triple QCD pomeron vertex and involve a summation over all conformal Eigenvectors of the BFKL kernel.

6 pages, REVTEX file + 2 .eps figures

References in corpus (7)

• BFKL pomeron in the next-to-leading approximation
• Energy Scale(s) and Next-to-leading BFKL Equation
• Conformal Invariance and the exact solution of BFKL equations
• Onium-Onium scattering at fixed impact parameter: exact equivalence between the color dipole model and the BFKL Pomeron
• Dual Shapiro-Virasoro amplitudes in the QCD dipole picture
• High-mass diffraction in the QCD dipole picture
• Selection rules at the quark-antiquark vertex of the QCD Pomeron

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• Reggeon Field Theory for Large Pomeron Loops
• Inclusive Gluon Production In High Energy Onium-Onium Scattering
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• QCD Saturation in the Semi-classical Approach
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• Unitarisation of the hard pomeron and black-disk limit at the LHC
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