Speaker
Bertrand Ducloue
(University of Jyvaskyla)
Description
We study single inclusive forward hadron production in the color glass condensate formalism. The first numerical studies of this process at next-to-leading-order accuracy have led to negative cross sections at large transverse momenta. We identify the origin of this problem as an oversubtraction of the rapidity divergence into the Balitsky-Kovchegov evolution equation for the target. We then discuss how to implement consistently a recently proposed manifestly positive formulation of the NLO cross section, showing in particular the importance of the treatment of the running coupling.
Authors
Bertrand Ducloue
(University of Jyvaskyla)
Tuomas Lappi
(University of Jyvaskyla)
Yan Zhu
(University of Jyvaskyla)
