Isolated photon production in the color dipole picture
(2021) 15th International Workshop on Hadron Physics, XVHadronPhysics 2021 In Proceedings of Science 408.- Abstract
A phenomenological study of the isolated photon production in high energy pp and pA collisions at RHIC and LHC energies is performed. Using the color dipole formalism, we investigate the impact of the saturation effects on the production cross sections considering three different phenomenological models for the universal dipole cross section. Predictions for the rapidity dependence of the ratio of pA to pp cross sections are also presented. Moreover, we present our predictions for the correlation function in azimuthal angle Δφ between the photon and a forward pion for different energies and photon rapidities. Our results demonstrate that the presence of saturation effects implies a double-peak structure in the correlation function... (More)
A phenomenological study of the isolated photon production in high energy pp and pA collisions at RHIC and LHC energies is performed. Using the color dipole formalism, we investigate the impact of the saturation effects on the production cross sections considering three different phenomenological models for the universal dipole cross section. Predictions for the rapidity dependence of the ratio of pA to pp cross sections are also presented. Moreover, we present our predictions for the correlation function in azimuthal angle Δφ between the photon and a forward pion for different energies and photon rapidities. Our results demonstrate that the presence of saturation effects implies a double-peak structure in the correlation function around Δφ≃ π when the isolated photon and the pion are produced at forward rapidities.
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- author
- Lima, Yuri N. ; Gonçalves, Victor P.B. ; Pasechnik, Roman LU and Šumbera, Michal
- organization
- publishing date
- 2021-08-30
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of Science
- series title
- Proceedings of Science
- volume
- 408
- conference name
- 15th International Workshop on Hadron Physics, XVHadronPhysics 2021
- conference location
- Virtual, Sao Jose dos Campos, Brazil
- conference dates
- 2021-09-13 - 2021-09-17
- external identifiers
-
- scopus:85137608733
- ISSN
- 1824-8039
- language
- English
- LU publication?
- yes
- id
- 992ee54e-be4c-4554-b659-16ea9ffb3e91
- date added to LUP
- 2022-12-05 12:39:34
- date last changed
- 2024-03-21 15:23:16
@inproceedings{992ee54e-be4c-4554-b659-16ea9ffb3e91, abstract = {{<p>A phenomenological study of the isolated photon production in high energy pp and pA collisions at RHIC and LHC energies is performed. Using the color dipole formalism, we investigate the impact of the saturation effects on the production cross sections considering three different phenomenological models for the universal dipole cross section. Predictions for the rapidity dependence of the ratio of pA to pp cross sections are also presented. Moreover, we present our predictions for the correlation function in azimuthal angle Δφ between the photon and a forward pion for different energies and photon rapidities. Our results demonstrate that the presence of saturation effects implies a double-peak structure in the correlation function around Δφ≃ π when the isolated photon and the pion are produced at forward rapidities.</p>}}, author = {{Lima, Yuri N. and Gonçalves, Victor P.B. and Pasechnik, Roman and Šumbera, Michal}}, booktitle = {{Proceedings of Science}}, issn = {{1824-8039}}, language = {{eng}}, month = {{08}}, series = {{Proceedings of Science}}, title = {{Isolated photon production in the color dipole picture}}, volume = {{408}}, year = {{2021}}, }