Rapidity gap distribution in diffractive dissociation: Predictions for future electron-ion colliders
| Autor: | Anh Dung Le |
|---|---|
| Přispěvatelé: | Centre de Physique Théorique [Palaiseau] (CPHT), Centre National de la Recherche Scientifique (CNRS)-École polytechnique (X) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Particle physics
small-x diffraction: dissociation FOS: Physical sciences Electron Kinematics 01 natural sciences Dissociation (psychology) High Energy Physics - Phenomenology (hep-ph) coupling constant: energy dependence 0103 physical sciences quantum chromodynamics medicine Rapidity 010306 general physics numerical calculations Physics Quantum chromodynamics Coupling 010308 nuclear & particles physics Observable electron nucleon: colliding beams 3. Good health eRHIC rapidity: gap High Energy Physics - Phenomenology Distribution (mathematics) electron nucleus: colliding beams kinematics [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph] medicine.symptom |
| Zdroj: | Physical Review D Physical Review D, American Physical Society, 2021, 104 (1), pp.014014. ⟨10.1103/PhysRevD.104.014014⟩ Physical Review |
| ISSN: | 1550-7998 1550-2368 |
| DOI: | 10.1103/PhysRevD.104.014014⟩ |
| Popis: | We present predictions for the distribution of rapidity gaps in realistic kinematics of future electron-ion colliders, based on numerical solutions of the original Kovchegov-Levin equation and of its next-to-leading extension taking into account the running of the strong coupling. We find that for the rapidities we have considered, the fixed and the running coupling equations lead to different distributions, rather insensitive to the chosen prescription in the running coupling case. The obtained distributions for the fixed coupling framework exhibit a shape characteristic of a recently proposed partonic picture of diffractive dissociation already at rapidities accessible at future electron-ion colliders. The modification of this shape in the running coupling case can also be understood qualitatively from that picture. Our results confirm the relevance of measurements of such observables for the microscopic understanding of diffractive dissociation in the framework of quantum chromodynamics. Comment: 17 pages, 10 figures |
| Databáze: | OpenAIRE |
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