Single inclusive forward hadron production at next-to-leading order
Ducloue, B., Lappi, T., & Zhu, Y. (2016). Single inclusive forward hadron production at next-to-leading order. Physical Review D, 93 (11), 114016. doi:10.1103/PhysRevD.93.114016
Published inPhysical Review D
© 2016 American Physical Society. Published in this repository with the kind permission of the publisher.
We discuss single inclusive hadron production from a high-energy quark scattering off a strong target color field in the color glass condensate formalism. Recent calculations of this process at the next-toleading-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 propose a new way to implement the kinematical restriction on the emitted gluons to overcome this difficulty.