Next-to-leading order Balitsky-Kovchegov equation with resummation
High Energy Physics - Phenomenology
2016-05-06 v2 Nuclear Theory
Abstract
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 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.
Cite
@article{arxiv.1601.06598,
title = {Next-to-leading order Balitsky-Kovchegov equation with resummation},
author = {T. Lappi and H. Mäntysaari},
journal= {arXiv preprint arXiv:1601.06598},
year = {2016}
}
Comments
10 pages, 8 figures. RevTex. v2: small clarifications to text, published in Phys. Rev. D