Proton Structure Functions at Next-to-Leading Order in the Dipole Picture with Massive Quarks
Abstract
We predict heavy quark production cross sections in deep inelastic scattering at high energy by applying the color glass condensate effective theory. We demonstrate that, when the calculation is performed consistently at next-to-leading order accuracy with massive quarks, it becomes possible, for the first time in the dipole picture with perturbatively calculated center-of-mass energy evolution, to simultaneously describe both the light and heavy quark production data at small xBj. Furthermore, we show how the heavy quark cross section data provides additional strong constraints on the extracted nonperturbative initial condition for the small-xBj evolution equations.
Main Authors
Format
Articles
Research article
Published
2023
Series
Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202306083643Use this for linking
Review status
Peer reviewed
ISSN
0031-9007
DOI
https://doi.org/10.1103/PhysRevLett.130.192301
Language
English
Published in
Physical Review Letters
Citation
- Hänninen, H., Mäntysaari, H., Paatelainen, R., & Penttala, J. (2023). Proton Structure Functions at Next-to-Leading Order in the Dipole Picture with Massive Quarks. Physical Review Letters, 130(19), Article 192301. https://doi.org/10.1103/PhysRevLett.130.192301
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Funder(s)
Research Council of Finland
Research Council of Finland
European Commission
Research Council of Finland
European Commission
Funding program(s)
Academy Project, AoF
Academy Research Fellow, AoF
ERC Advanced Grant
Research costs of Academy Research Fellow, AoF
RIA Research and Innovation Action, H2020
Akatemiahanke, SA
Akatemiatutkija, SA
ERC Advanced Grant
Akatemiatutkijan tutkimuskulut, SA
RIA Research and Innovation Action, H2020
Funded by the European Union. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or the European Education and Culture Executive Agency (EACEA). Neither the European Union nor EACEA can be held responsible for them.
Additional information about funding
We thank T. Lappi for discussions, and V. Apaja for computational support. This work was supported by the Academy of Finland, the Centre of Excellence in Quark Matter and Projects No. 338263, No. 346567, No. 321840, No. 347499, and No. 353772. This work was also supported under the European Union’s Horizon 2020 research and innovation programme by the European Research Council (ERC, Grant Agreement No. ERC-2018-ADG-835105 YoctoLHC) and by the STRONG-2020 project (Grant Agreement No. 824093). J. P. is supported by the Finnish Cultural Foundation. The content of this article does not reflect the official opinion of the European Union and responsibility for the information and views expressed therein lies entirely with the authors. Computing resources from CSC–IT Center for Science in Espoo, Finland and from the Finnish Grid and Cloud Infrastructure (persistent identifier urn:nbn:fi:research-infras-2016072533) were used in this work.
Copyright© Authors 2023. Published by the American Physical Society