Higher-order corrections to exclusive heavy vector meson production
Lappi, T., Mäntysaari, H., & Penttala, J. (2022). Higher-order corrections to exclusive heavy vector meson production. In DIS 2021 : Proceedings of the 28th International Workshop on Deep-Inelastic Scattering and Related Subjects (Article 133). Stichting SciPost. SciPost Physics Proceedings, 8. https://doi.org/10.21468/SciPostPhysProc.8.133
Published inSciPost Physics Proceedings
© T. Lappi et al, 2022
We present results for higher-order corrections to exclusive J/ψJ/ψ production. This includes the first relativistic correction of order v2v2 in quark velocity, and next-to-leading order corrections in αsαs for longitudinally polarized production. The relativistic corrections are found to be important for a good description of the HERA data, especially at small values of the photon virtuality. The next-to-leading order results for longitudinal production are evaluated numerically. We also demonstrate how the vector meson production provides complementary information to the structure functions for extracting the initial condition for the small-xx evolution of the dipole-proton scattering amplitude.
ConferenceInternational Workshop on Deep-Inelastic Scattering and Related Subjects
Is part of publicationDIS 2021 : Proceedings of the 28th International Workshop on Deep-Inelastic Scattering and Related Subjects
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Related funder(s)Academy of Finland; European Commission
Funding program(s)Academy Project, AoF; Research costs of Academy Research Fellow, AoF; Postdoctoral Researcher, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingThis work was supported by the Academy of Finland, projects 314764 (H.M), 321840 (T.L and J.P) and 314162 (J.P), and by the EU Horizon 2020 research and innovation programme, STRONG-2020 project (Grant Agreement No. 824093). T.L is supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. ERC-2015-CoG-681707). 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. ...
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