Inclusive dijet photoproduction in ultraperipheral heavy ion collisions at the CERN Large Hadron Collider in next-to-leading order QCD
Abstract
We compute the cross section of inclusive dijet photoproduction in ultraperipheral Pb-Pb collisions at the CERN Large Hadron Collider using next-to-leading order perturbative QCD. We demonstrate that our theoretical calculations provide a good description of various kinematic distributions measured by the ATLAS Collaboration. We find that the calculated dijet photoproduction cross section is sensitive to nuclear modifications of parton distribution functions (PDFs) at the level of 10% to 20%. Hence, this process can be used to reduce uncertainties in the determination of these nuclear PDFs, whose current magnitude is comparable to the size of the calculated nuclear modifications of the dijet photoproduction cross section.
Main Authors
Format
Articles
Research article
Published
2019
Series
Subjects
Publication in research information system
Publisher
American Physical Society
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-201907293702Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.99.065202
Language
English
Published in
Physical Review C
Citation
- Guzey, V., & Klasen, M. (2019). Inclusive dijet photoproduction in ultraperipheral heavy ion collisions at the CERN Large Hadron Collider in next-to-leading order QCD. Physical Review C, 6, Article 065202. https://doi.org/10.1103/PhysRevC.99.065202
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Additional information about funding
V.G.’s research is supported in part by RFBR, research Project No. 17-52-12070. The authors gratefully acknowledge financial support of DFG through the Grant No. KL 1266/9-1 within the framework of the joint German-Russian project “New constraints on nuclear parton distribution functions at small x from dijet production in γ A collisions at the LHC.”
Copyright© The Authors, 2019.