6533b833fe1ef96bd129b70f
RESEARCH PRODUCT
Next-to-leading order Balitsky-Kovchegov equation with resummation
Heikki MäntysaariTuomas LappiTuomas Lappisubject
PhysicsLogarithmta114Nuclear Theory010308 nuclear & particles physicsFOS: Physical sciencesBalitsky-Kovchegov equation01 natural sciencesgluonsNuclear Theory (nucl-th)DipoleHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Quantum electrodynamics0103 physical sciencesEvolution equationquantum chromodynamicscolor glass condensateOrder (group theory)Boundary value problemResummation010306 general physicsConstant (mathematics)Saturation (chemistry)next-to-leading order correctionsdescription
We solve the Balitsky-Kovchegov evolution equation at next-to-leading order accuracy including a resummation of large single and double transverse momentum logarithms to all orders. We numerically determine an optimal value for the constant under the large transverse momentum logarithm that enables including a maximal amount of the full NLO result in the resummation. When this value is used the contribution from the $\alpha_s^2$ terms without large logarithms is found to be small at large saturation scales and at small dipoles. Close to initial conditions relevant for phenomenological applications these fixed order corrections are shown to be numerically important.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 |