Color dipole predictions for the exclusive vector meson photoproduction in pp, pPb, and PbPb collisions at run 2 LHC energies

• Autor(a) principal: Goncalves, Victor Paulo Barros
• Data de Publicação: 2017
• Outros Autores: Machado, Magno Valério Trindade, Moreira, Bruno Duarte da Silva, Navarra, Fernando Silveira, Santos, Glauber Sampaio dos
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/178403
• topic: Fotoproducao de mesons; Aceleradores de partículas; Cromodinâmica quântica

In this paper we present a comprehensive analysis of exclusive vector-meson photoproduction in pp, pPb and PbPb collisions at Run 2 LHC energies using the color dipole formalism. The rapidity distributions and total cross sections for the ρ, ϕ, J=Ψ, Ψð2SÞ and ϒ production are estimated considering the more recent phenomenological models for the dipole-proton scattering amplitude, which are based on the color glass condensate formalism and are able to describe the inclusive and exclusive ep HERA data. Moreover, we also discuss the impact of the modeling of the vector-meson wave functions on the predictions. The current theoretical uncertainty in the color dipole predictions is estimated and a comparison with the experimental results is performed.