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arXiv · 1604.00225

Single inclusive forward hadron production at next-to-leading order

B. Ducloué·T. Lappi·Y. Zhu
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Abstract

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-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 propose a new way to implement the kinematical restriction on the emitted gluons to overcome this difficulty.

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B. Ducloué, T. Lappi, Y. Zhu. 2016-04-01. Single inclusive forward hadron production at next-to-leading order. https://doi.org/10.1103/physrevd.93.114016

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