γ γ cross section at NLO and properties of the BFKL evolution at higher orders

γ γ cross section at NLO and properties of the BFKL evolution at higher orders

We obtain a simple analytic expression for the high energy γ * γ * scattering cross section at the next-to-leading order in the logarithms-of-energy power counting. To this end we employ the eigenfunctions of the NLO BFKL equation constructed in our previous paper. We also construct the eigenfunctio...

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Veröffentlicht in:The journal of high energy physics 2014-05, Vol.2014 (5), Article 99
Hauptverfasser: Chirilli, Giovanni A., Kovchegov, Yuri V.
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PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Kovchegov, Yuri V.
description We obtain a simple analytic expression for the high energy γ * γ * scattering cross section at the next-to-leading order in the logarithms-of-energy power counting. To this end we employ the eigenfunctions of the NLO BFKL equation constructed in our previous paper. We also construct the eigenfunctions of the NNLO BFKL kernel and obtain a general form of the solution for the NNLO BFKL equation, which confirms the ansatz proposed in our previous paper.
doi_str_mv 10.1007/JHEP05(2014)099
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title γ γ cross section at NLO and properties of the BFKL evolution at higher orders
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