BFKL resummation effects in the gamma* gamma* total hadronic cross section

Abstract

We study in the BFKL approach the total hadronic cross section for the collision of two virtual photons for energies in the range of LEP2 and in the range of future linear colliders. The BFKL resummation is done at the next-to-leading order in the BFKL Green's function; photon impact factors are taken instead at the leading order, but with the inclusion of the subleading terms required by invariance under changes of the renormalization scale and of the BFKL scale s_0. We compare our results with previous estimates based on a similar kind of approximation.

12 pages, 5 figures, uses axodraw.sty

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• Solution of the NLO BFKL Equation and a Strategy for Solving the All-Order BFKL Equation
• Mueller-Navelet jets at the LHC: hunting data with azimuthal distributions
• ${\gamma }^{\ast }{\gamma }^{\ast }$ Cross Section at NLO and Properties of the BFKL Evolution at Higher Orders
• The quark induced Mueller-Tang jet impact factor at next-to-leading order
• The ${\gamma }^{\ast }{\gamma }^{\ast }$ total cross section in next-to-leading order BFKL and LEP2 data
• Resonance production in Pomeron-Pomeron collisions at the LHC
• Diffractive $J/\Psi$ photoproduction at large momentum transfer in coherent hadron - hadron interactions at CERN LHC
• Non-linear QCD dynamics in two-photon interactions at high energies
• Double vector meson production in the International Linear Collider
• Taming of preasymptotic small x evolution within resummation framework
• Elastic scattering of virtual photons via quark loop in Double-Logarithmic Approximation
• Light-by-light scattering in Double-Logarithmic Approximation
• Diffractive photon production at high momentum transfer in $ep$ collisions
• NLO BFKL in gamma* gamma* collisions