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

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 suppre...

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Autores principales:	Heikki Mäntysaari, Jani Penttala
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/81612bc53fb64c5da86a0368448fc384
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spelling	oai:doaj.org-article:81612bc53fb64c5da86a0368448fc3842021-12-04T04:32:24ZExclusive heavy vector meson production at next-to-leading order in the dipole picture0370-269310.1016/j.physletb.2021.136723https://doaj.org/article/81612bc53fb64c5da86a0368448fc3842021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321006638https://doaj.org/toc/0370-2693We 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.Heikki MäntysaariJani PenttalaElsevierarticlePhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136723- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Heikki Mäntysaari Jani Penttala Exclusive heavy vector meson production at next-to-leading order in the dipole picture
description	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.
format	article
author	Heikki Mäntysaari Jani Penttala
author_facet	Heikki Mäntysaari Jani Penttala
author_sort	Heikki Mäntysaari
title	Exclusive heavy vector meson production at next-to-leading order in the dipole picture
title_short	Exclusive heavy vector meson production at next-to-leading order in the dipole picture
title_full	Exclusive heavy vector meson production at next-to-leading order in the dipole picture
title_fullStr	Exclusive heavy vector meson production at next-to-leading order in the dipole picture
title_full_unstemmed	Exclusive heavy vector meson production at next-to-leading order in the dipole picture
title_sort	exclusive heavy vector meson production at next-to-leading order in the dipole picture
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/81612bc53fb64c5da86a0368448fc384
work_keys_str_mv	AT heikkimantysaari exclusiveheavyvectormesonproductionatnexttoleadingorderinthedipolepicture AT janipenttala exclusiveheavyvectormesonproductionatnexttoleadingorderinthedipolepicture
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Exclusive heavy vector meson production at next-to-leading order in the dipole picture

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