A1 Journal article (refereed)
Exclusive heavy vector meson production at next-to-leading order in the dipole picture (2021)

Mäntysaari, H., & Penttala, J. (2021). Exclusive heavy vector meson production at next-to-leading order in the dipole picture. Physics Letters B, 823, Article 136723. https://doi.org/10.1016/j.physletb.2021.136723

JYU authors or editors

Publication details

All authors or editors: Mäntysaari, Heikki; Penttala, Jani

Journal or series: Physics Letters B

ISSN: 0370-2693

eISSN: 1873-2445

Publication year: 2021

Volume: 823

Article number: 136723

Publisher: Elsevier BV

Publication country: Netherlands

Publication language: English

DOI: https://doi.org/10.1016/j.physletb.2021.136723

Publication open access: Openly available

Publication channel open access: Open Access channel

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/78808

Publication is parallel published: https://arxiv.org/abs/2104.02349


We calculate exclusive production of a longitudinally polarized heavy vector meson at next-to-leading order in the dipole picture. The large quark mass allows us to separately include both the first QCD correction proportional to the coupling constant αs, and the first relativistic correction suppressed by the quark velocity v2. Both of these corrections are found to be numerically important in J/ψ production. The results obtained are directly suitable for phenomenological calculations. We also demonstrate how vector meson production provides complementary information to structure function analyses when one extracts the initial condition for the energy evolution of the proton small-x structure.

Keywords: particle physics; quarks

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Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 2

Last updated on 2022-20-09 at 13:49