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...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-12-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269321006638 |
| _version_ | 1819037757747494912 |
|---|---|
| author | Heikki Mäntysaari Jani Penttala |
| author_facet | Heikki Mäntysaari Jani Penttala |
| author_sort | Heikki Mäntysaari |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-21T08:26:30Z |
| format | Article |
| id | doaj.art-81612bc53fb64c5da86a0368448fc384 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-21T08:26:30Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-81612bc53fb64c5da86a0368448fc3842022-12-21T19:10:18ZengElsevierPhysics Letters B0370-26932021-12-01823136723Exclusive heavy vector meson production at next-to-leading order in the dipole pictureHeikki Mäntysaari0Jani Penttala1Department of Physics, University of Jyväskylä, P.O. Box 35, 40014 University of Jyväskylä, Finland; Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, FinlandDepartment of Physics, University of Jyväskylä, P.O. Box 35, 40014 University of Jyväskylä, Finland; Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, Finland; Corresponding author.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.http://www.sciencedirect.com/science/article/pii/S0370269321006638 |
| spellingShingle | Heikki Mäntysaari Jani Penttala Exclusive heavy vector meson production at next-to-leading order in the dipole picture Physics Letters B |
| title | 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_short | 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 |
| url | http://www.sciencedirect.com/science/article/pii/S0370269321006638 |
| work_keys_str_mv | AT heikkimantysaari exclusiveheavyvectormesonproductionatnexttoleadingorderinthedipolepicture AT janipenttala exclusiveheavyvectormesonproductionatnexttoleadingorderinthedipolepicture |