Work

Exclusive heavy vector meson production at next-to-leading order in the dipole picture

Year: 2021

Type: article

Abstract: 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.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2021.136723

Authors: Heikki Mäntysaari, Jani Penttala

Institutions: University of Helsinki, Helsinki Institute of Physics, University of Jyväskylä

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond