July 31, 2018 to August 6, 2018
Maynooth University
Europe/Dublin timezone

Forward particle production in proton-nucleus collisions at next-to-leading order

Aug 2, 2018, 2:30 PM
Hall F (Arts Bldg.)

Hall F

Arts Bldg.

Invited talk D: Deconfinement Deconfinement


Bertrand Ducloue (IPhT Saclay)


Reaching next-to-leading order accuracy in perturbative calculations of particle production in QCD at high energy is essential for reliable phenomenological applications. In recent years, the Color Glass Condensate effective theory (the natural framework for such calculations) has indeed been promoted to NLO accuracy. However, the first NLO calculation of single-inclusive hadron production met with an unexpected difficulty: the cross-section suddenly turns negative at transverse momenta of the order of a few GeV, in a range where perturbation theory is expected to be reliable. We summarize recent efforts to understand and solve this issue, as well as to develop a running coupling scheme that can be used to consistently describe various processes in this formalism.

Primary author

Bertrand Ducloue (IPhT Saclay)

Presentation materials