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arXiv · 2210.15749

Investigating exclusive $ρ^0$ photoproduction within the Regge phenomenology approach

László Jenkovszky·Érison dos Santos Rocha·Magno V. T. Machado
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Abstract

The elastic differential and integrated total cross section for the exclusive $ρ^0$ photoproduction in electron-proton ($ep$) collisions are evaluated taking into account nonperturbative Pomeron exchange approach. By using three different models based on Regge phenomenology the results are compared to recent measurements by H1 Collaboration in $ep$ collisions and by the CMS collaboration from ultraperipheral proton-lead collisions. The analysis is expanded by calculating the coherent nuclear cross section, $σ(γA\rightarrow ρ^0 A)$, which is applied to $ρ^0$ production in ultraperipheral lead-lead and xenon-xenon collisions. The predictions are compared to the measurements performed by ALICE Collaboration. Aspects of the theoretical uncertainties and limitations of the formalism are scrutinized.

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László Jenkovszky, Érison dos Santos Rocha, Magno V. T. Machado. 2022-12-12. Investigating exclusive $ρ^0$ photoproduction within the Regge phenomenology approach. https://doi.org/10.1016/j.physletb.2022.137585

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