Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes
The coherent photonuclear production of a J/ψ vector meson at the LHC has been computed using two different sets of solutions of the impact-parameter dependent Balitsky-Kovchegov equation. The nuclear dipole scattering amplitudes are obtained either from (i) solutions for this process off proton tar...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-06-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026932100246X |
| _version_ | 1818600453487722496 |
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| author | D. Bendova J. Cepila J.G. Contreras M. Matas |
| author_facet | D. Bendova J. Cepila J.G. Contreras M. Matas |
| author_sort | D. Bendova |
| collection | DOAJ |
| description | The coherent photonuclear production of a J/ψ vector meson at the LHC has been computed using two different sets of solutions of the impact-parameter dependent Balitsky-Kovchegov equation. The nuclear dipole scattering amplitudes are obtained either from (i) solutions for this process off proton targets coupled with a Glauber-Gribov prescription, or (ii) from solutions obtained with an initial condition representing the nucleus. These approaches predict different cross sections, which are compared with existing data from ultra-peripheral collisions at the LHC. The latter approach seems to better describe current measurements. Future LHC data should be precise enough to select one of the two approaches as the correct one. |
| first_indexed | 2024-12-16T12:35:44Z |
| format | Article |
| id | doaj.art-fb5fc4fa46c0425f9522c7d4c8e8d4ee |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-16T12:35:44Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-fb5fc4fa46c0425f9522c7d4c8e8d4ee2022-12-21T22:31:34ZengElsevierPhysics Letters B0370-26932021-06-01817136306Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudesD. Bendova0J. Cepila1J.G. Contreras2M. Matas3Corresponding author.; Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Czech RepublicFaculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Czech RepublicFaculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Czech RepublicFaculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Czech RepublicThe coherent photonuclear production of a J/ψ vector meson at the LHC has been computed using two different sets of solutions of the impact-parameter dependent Balitsky-Kovchegov equation. The nuclear dipole scattering amplitudes are obtained either from (i) solutions for this process off proton targets coupled with a Glauber-Gribov prescription, or (ii) from solutions obtained with an initial condition representing the nucleus. These approaches predict different cross sections, which are compared with existing data from ultra-peripheral collisions at the LHC. The latter approach seems to better describe current measurements. Future LHC data should be precise enough to select one of the two approaches as the correct one.http://www.sciencedirect.com/science/article/pii/S037026932100246XImpact-parameter dependent Balitsky-Kovchegov equationCoherent vector meson photoproductionLHC |
| spellingShingle | D. Bendova J. Cepila J.G. Contreras M. Matas Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes Physics Letters B Impact-parameter dependent Balitsky-Kovchegov equation Coherent vector meson photoproduction LHC |
| title | Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes |
| title_full | Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes |
| title_fullStr | Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes |
| title_full_unstemmed | Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes |
| title_short | Photonuclear J/ψ production at the LHC: Proton-based versus nuclear dipole scattering amplitudes |
| title_sort | photonuclear j ψ production at the lhc proton based versus nuclear dipole scattering amplitudes |
| topic | Impact-parameter dependent Balitsky-Kovchegov equation Coherent vector meson photoproduction LHC |
| url | http://www.sciencedirect.com/science/article/pii/S037026932100246X |
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