Solving the NLO BK equation in coordinate space
Lappi, T., & Mäntysaari, H. (2015). Solving the NLO BK equation in coordinate space. In DIS2015 : the 23rd International Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects. PoS : Proceedings of Science (DIS2015, 080). Sissa. Retrieved from http://pos.sissa.it/archive/conferences/247/080/DIS2015_080.pdf
Published inPoS : Proceedings of Science;DIS2015, 080
© by the Author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
We present results from a numerical solution of the next-to-leading order (NLO) BalitskyKovchegov (BK) equation in coordinate space in the large Nc limit. We show that the solution is not stable for initial conditions that are close to those used in phenomenological applications of the leading order equation. We identify the problematic terms in the NLO kernel as being related to large logarithms of a small parent dipole size, and also show that rewriting the equation in terms of the “conformal dipole” does not remove the problem. Our results qualitatively agree with expectations based on the behavior of the linear NLO BFKL equation.
Is part of publicationDIS2015 : the 23rd International Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects