Exclusive photo- and electroproduction of excited light vector mesons via holographic model
Abstract In this paper, we study total and differential observables of electro- and photoproduction of light $$\rho $$ ρ , $$\omega $$ ω and $$\phi $$ ϕ mesons as functions of the center-of-mass energy of the $$\gamma p$$ γ p collision and momentum transfer squared |t|. The corresponding vector meso...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-11706-5 |
| _version_ | 1797774008078303232 |
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| author | Cheryl Henkels Emmanuel G. de Oliveira Roman Pasechnik Haimon Trebien |
| author_facet | Cheryl Henkels Emmanuel G. de Oliveira Roman Pasechnik Haimon Trebien |
| author_sort | Cheryl Henkels |
| collection | DOAJ |
| description | Abstract In this paper, we study total and differential observables of electro- and photoproduction of light $$\rho $$ ρ , $$\omega $$ ω and $$\phi $$ ϕ mesons as functions of the center-of-mass energy of the $$\gamma p$$ γ p collision and momentum transfer squared |t|. The corresponding vector mesons wave functions have been computed in the framework of relativistic AdS/QCD holographic approach. A satisfactory description of all available data on ground-state $$\rho (1S)$$ ρ ( 1 S ) , $$\omega (1S)$$ ω ( 1 S ) and $$\phi (1S)$$ ϕ ( 1 S ) mesons production cross sections has been achieved in the color dipole picture. Finally, the key observables of excited $$\rho (2S)$$ ρ ( 2 S ) , $$\omega (2S)$$ ω ( 2 S ) and $$\phi (2S)$$ ϕ ( 2 S ) states production in $$\gamma ^{(*)} p$$ γ ( ∗ ) p collisions have been presented here using a common wave function formalism. This study reveals a large theoretical uncertainty coming from the modeling of the partial dipole amplitude in the nonperturbative kinematical domain. Hence, the latter could benefit from future measurements of photoproduction of the excited states. |
| first_indexed | 2024-03-12T22:14:07Z |
| format | Article |
| id | doaj.art-2d53624d67e84e43aebee0fd9d669663 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-12T22:14:07Z |
| publishDate | 2023-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-2d53624d67e84e43aebee0fd9d6696632023-07-23T11:23:21ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-06-0183611110.1140/epjc/s10052-023-11706-5Exclusive photo- and electroproduction of excited light vector mesons via holographic modelCheryl Henkels0Emmanuel G. de Oliveira1Roman Pasechnik2Haimon Trebien3Departamento de Física, CFM, Universidade Federal de Santa CatarinaDepartamento de Física, CFM, Universidade Federal de Santa CatarinaDepartment of Astronomy and Theoretical Physics, Lund UniversityDepartamento de Física, CFM, Universidade Federal de Santa CatarinaAbstract In this paper, we study total and differential observables of electro- and photoproduction of light $$\rho $$ ρ , $$\omega $$ ω and $$\phi $$ ϕ mesons as functions of the center-of-mass energy of the $$\gamma p$$ γ p collision and momentum transfer squared |t|. The corresponding vector mesons wave functions have been computed in the framework of relativistic AdS/QCD holographic approach. A satisfactory description of all available data on ground-state $$\rho (1S)$$ ρ ( 1 S ) , $$\omega (1S)$$ ω ( 1 S ) and $$\phi (1S)$$ ϕ ( 1 S ) mesons production cross sections has been achieved in the color dipole picture. Finally, the key observables of excited $$\rho (2S)$$ ρ ( 2 S ) , $$\omega (2S)$$ ω ( 2 S ) and $$\phi (2S)$$ ϕ ( 2 S ) states production in $$\gamma ^{(*)} p$$ γ ( ∗ ) p collisions have been presented here using a common wave function formalism. This study reveals a large theoretical uncertainty coming from the modeling of the partial dipole amplitude in the nonperturbative kinematical domain. Hence, the latter could benefit from future measurements of photoproduction of the excited states.https://doi.org/10.1140/epjc/s10052-023-11706-5 |
| spellingShingle | Cheryl Henkels Emmanuel G. de Oliveira Roman Pasechnik Haimon Trebien Exclusive photo- and electroproduction of excited light vector mesons via holographic model European Physical Journal C: Particles and Fields |
| title | Exclusive photo- and electroproduction of excited light vector mesons via holographic model |
| title_full | Exclusive photo- and electroproduction of excited light vector mesons via holographic model |
| title_fullStr | Exclusive photo- and electroproduction of excited light vector mesons via holographic model |
| title_full_unstemmed | Exclusive photo- and electroproduction of excited light vector mesons via holographic model |
| title_short | Exclusive photo- and electroproduction of excited light vector mesons via holographic model |
| title_sort | exclusive photo and electroproduction of excited light vector mesons via holographic model |
| url | https://doi.org/10.1140/epjc/s10052-023-11706-5 |
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