A1 Journal article (refereed)
Forward dijets in proton-nucleus collisions at next-to-leading order : the real corrections (2021)
Iancu, E., & Mulian, Y. (2021). Forward dijets in proton-nucleus collisions at next-to-leading order : the real corrections. Journal of High Energy Physics, 2021(3), Article 5. https://doi.org/10.1007/jhep03(2021)005
JYU authors or editors
Publication details
All authors or editors: Iancu, Edmond; Mulian, Yair
Journal or series: Journal of High Energy Physics
ISSN: 1126-6708
eISSN: 1029-8479
Publication year: 2021
Volume: 2021
Issue number: 3
Article number: 5
Publisher: Springer Science and Business Media LLC
Publication country: Germany
Publication language: English
DOI: https://doi.org/10.1007/jhep03(2021)005
Publication open access: Openly available
Publication channel open access: Open Access channel
Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/74522
Web address of parallel published publication (pre-print): https://arxiv.org/abs/2009.11930
Abstract
Using the CGC effective theory together with the hybrid factorisation, we study forward dijet production in proton-nucleus collisions beyond leading order. In this paper, we compute the “real” next-to-leading order (NLO) corrections, i.e. the radiative corrections associated with a three-parton final state, out of which only two are being measured. To that aim, we start by revisiting our previous results for the three-parton cross-section presented in [1]. After some reshuffling of terms, we deduce new expressions for these results, which not only look considerably simpler, but are also physically more transparent. We also correct several errors in this process. The real NLO corrections to inclusive dijet production are then obtained by integrating out the kinematics of any of the three final partons. We explicitly work out the interesting limits where the unmeasured parton is either a soft gluon, or the product of a collinear splitting. We find the expected results in both limits: the B-JIMWLK evolution of the leading-order dijet cross-section in the first case (soft gluon) and, respectively, the DGLAP evolution of the initial and final states in the second case (collinear splitting). The “virtual” NLO corrections to dijet production will be presented in a subsequent publication.
Free keywords: heavy ion phenomenology; NLO computations
Contributing organizations
Ministry reporting: Yes
Reporting Year: 2021
JUFO rating: 2